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0.3.5 TM1637_RT
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rob tillaart
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commit
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@ -6,7 +6,7 @@ jobs:
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lint:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- uses: actions/checkout@v3
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- uses: arduino/arduino-lint-action@v1
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with:
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library-manager: update
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@ -8,7 +8,7 @@ jobs:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- uses: actions/checkout@v3
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- uses: ruby/setup-ruby@v1
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with:
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ruby-version: 2.6
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@ -10,7 +10,7 @@ jobs:
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test:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- uses: actions/checkout@v3
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- name: json-syntax-check
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uses: limitusus/json-syntax-check@v1
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with:
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@ -5,26 +5,32 @@ All notable changes to this project will be documented in this file.
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The format is based on [Keep a Changelog](http://keepachangelog.com/)
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and this project adheres to [Semantic Versioning](http://semver.org/).
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## [0.3.4] - 2022-10-07
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## [0.3.5] - 2023-02-18
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- add **void displayFloat(float value, byte fixpoint)** Thanks to marshalab
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- edd example TM1637_float_point.ino
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- update readme.md
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- update GitHub actions
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- update license 2023
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- minor edits
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## [0.3.4] - 2022-10-07
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- added CHANGELOG.md
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- added **void displayPChar(char \* data)** thanks to radionerd
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- added **uint8_t asciiTo7Segment (char c)** thanks to radionerd
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- updated documentation
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## [0.3.3] - 2022-09-24
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- added CHANGELOG.md
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- added **begin()** to replace **init()** in due time.
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- updated documentation
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## [0.3.2] - 2022-04-16
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- fix #15 support for 4 digits.
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- tested on 4 digit (clock) display.
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## [0.3.1] - 2021-12-29
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- update library.json
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- update license
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- update readme.md
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@ -32,30 +38,28 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
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- tested on 6 digits display (with decinal point).
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## [0.3.0] - 2021-10-27
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- improved keyscan - kudos to wfdudley
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- update documentation
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- update documentation
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----
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## [0.2.1] - 2021-10-07
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- add support for letters g-z; added keyscan()
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- tested on ESP8266
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## [0.2.0] - 2021-09-26
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- add ESP32 support - kudos to alexthomazo
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## [0.1.2] - 2021-04-16
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----
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## [0.1.2] - 2021-04-16
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- update readme
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- fix default values
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## [0.1.1] - 2021-02-15
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- first release
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- added examples
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## [0.1.0] - 2019-10-28
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- initial version
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@ -1,6 +1,6 @@
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MIT License
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Copyright (c) 2019-2022 Rob Tillaart
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Copyright (c) 2019-2023 Rob Tillaart
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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@ -28,11 +28,13 @@ As the display is only tested with a 6 digit display, this is used as the defaul
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- **void displayRaw(uint8_t \* data, uint8_t pointPos)** low level write function.
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- **void displayInt(long value)** idem
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- **void displayFloat(float value)** idem
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- **void displayFloat(float value, uint8_t fixedPoint)** display float with fixed point position.
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- **void displayHex(uint32_t value)** idem
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- **void displayClear()** writes spaces to all positions, effectively clearing the display.
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- **void setBrightness(uint8_t b)** brightness = 0 .. 7 default = 3.
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- **uint8_t getBrightness()** returns value set.
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- **uint8_t keyscan(void)** scans the keyboard once and return result. The keyscan() function cannot detect multiple keys.
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- **uint8_t keyscan(void)** scans the keyboard once and return result.
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The keyscan() function cannot detect multiple keys.
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**displayRaw()** can display multiple decimal points, by setting the high bit (0x80)
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@ -46,7 +48,7 @@ Or you can use the pointPos argument to light just one decimal at that position.
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- g-z are coded as 0x12-0x25. Characters that cannot be represented in 7 segments render as blank.
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So "hello " is coded as 0x13, 0x0e, 0x17, 0x17, 0x1a, 0x10
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**void displayPChar(char \*buff)** Attempts to display every ascii character 0x30 to 0x5F.
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**void displayPChar(char \*buff)** Attempts to display every ASCII character 0x30 to 0x5F.
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See example TM1637_custom.ino to insert your own 7 segment patterns.
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Also displayed are ' ' , '.' and '-' . Decimal points may also be displayed by setting the character sign bit.
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@ -61,7 +63,6 @@ Routine **button_poll()** in the same example shows one way of polling and de-bo
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- **void init(uint8_t clockPin, uint8_t dataPin, uint8_t digits = 6)** replaced by begin().
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### Display support
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The library is tested with a 6 (=2x3) digit - decimal point - display and a 4 (=1x4) digit - clock - display.
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@ -71,7 +72,7 @@ To adjust the order for a not supported display, the following function can be u
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- **void setDigitOrder(uint8_t a, uint8_t b,... uint8_t h)** sets the order in which up to 8 digits should be clocked in.
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If you have a (7 segment) display that is not supported by the library,
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please open an issue on Github so it can be build in.
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please open an issue on GitHub so it can be build in.
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### Tuning function
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@ -92,7 +93,9 @@ Feel free to file an issue to get your processor supported.
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### Keyboard Scanner usage and notes
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Calling keyscan() returns a uint8_t, whose value is 0xff if no keys are being pressed at the time. The TM1637 can only see one key press at a time, and there is no "rollover". If a key is pressed, then the values are as follows:
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Calling keyscan() returns a uint8_t, whose value is 0xff if no keys are being pressed at the time.
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The TM1637 can only see one key press at a time, and there is no "rollover".
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If a key is pressed, then the values are as follows:
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<CENTER>
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<TABLE>
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@ -147,12 +150,12 @@ The scope photos were taken using the TM1637_keyscan_raw example, with the scope
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Implemented in version 0.3.0 Please read the datasheet to understand the limitations.
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```
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// NOTE:
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// on the TM1637 boards tested by @wfdudley, keyscan() works well
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// if you add a 910 ohm or 1 Kohm pull-up resistor from DIO to 3.3v
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// This reduces the rise time of the DIO signal when reading the key info.
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// If one only uses the pull-up inside the microcontroller,
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// the rise time is too long for the data to be read reliably.
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// NOTE:
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// on the TM1637 boards tested by @wfdudley, keyscan() works well
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// if you add a 910 ohm or 1 Kohm pull-up resistor from DIO to 3.3v
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// This reduces the rise time of the DIO signal when reading the key info.
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// If one only uses the pull-up inside the microcontroller,
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// the rise time is too long for the data to be read reliably.
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```
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@ -163,16 +166,35 @@ See examples
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## Future
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### 0.4.0
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#### Must
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- remove obsolete **init()** from code (0.4.0)
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#### Should
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- remove obsolete **init()** from code
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- investigate if code can be optimized
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- performance measurement
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### other
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- testing other platforms.
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- move code from .h to .cpp
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- **setLeadingZeros(bool on = false)** leading zeros flag
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- getter.
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- set data array to 0.
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- 0.4.0
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#### Could
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- **keyScan()** camelCase ?
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- add debug flag for test without hardware.
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- simulate output to Serial? (HEX)?
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- **displayTest()** function ?
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#### Wont (unless requested)
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- **rotate(bool rot = false)**
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- 180 degree rotation of all digits for mounting
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- reverse digit order
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- flip every digit (function to overwrite the char array)
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- **HUD(bool hud = false)** = Heads Up Display
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- flip every digit
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@ -2,7 +2,7 @@
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// FILE: TM1637.cpp
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// AUTHOR: Rob Tillaart
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// DATE: 2019-10-28
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// VERSION: 0.3.4
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// VERSION: 0.3.5
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// PURPOSE: TM1637 library for Arduino
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// URL: https://github.com/RobTillaart/TM1637_RT
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@ -70,7 +70,7 @@ TM1637::TM1637()
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}
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// wrapper, will become obsolete 0.4.0.
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// wrapper, init() will become obsolete 0.4.0.
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void TM1637::init(uint8_t clockPin, uint8_t dataPin, uint8_t digits)
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{
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begin(clockPin, dataPin, digits);
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@ -89,13 +89,13 @@ void TM1637::begin(uint8_t clockPin, uint8_t dataPin, uint8_t digits)
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digitalWrite(_data, HIGH);
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// TODO: replace _digits by a display enumeration?
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if (_digits == 4 )
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if (_digits == 4)
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{
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setDigitOrder(3,2,1,0);
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setDigitOrder(3, 2, 1, 0);
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}
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else // (_digits == 6 ) // default
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else // (_digits == 6 ) // default
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{
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setDigitOrder(3,4,5,0,1,2);
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setDigitOrder(3, 4, 5, 0, 1, 2);
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}
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}
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@ -111,13 +111,13 @@ void TM1637::displayInt(long value)
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{
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v = -v;
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last--;
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data[last] = 17; // minus sign;
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data[last] = 17; // minus sign;
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}
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for (int i = 0; i < last; i++)
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{
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long t = v / 10;
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data[i] = v - 10 * t; // faster than %
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data[i] = v - 10 * t; // faster than %
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v = t;
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}
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@ -129,8 +129,8 @@ void TM1637::displayFloat(float value)
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{
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uint8_t data[8] = { 16, 16, 16, 16, 16, 16, 16, 16};
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float v = value;
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int dpos = _digits-1;
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float v = value;
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int dpos = _digits - 1;
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int last = _digits;
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bool neg = (v < 0);
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@ -139,7 +139,7 @@ void TM1637::displayFloat(float value)
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v = -v;
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dpos--;
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last--;
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data[last] = 17; // minus sign;
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data[last] = 17; // minus sign;
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}
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while (v >= 10)
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@ -158,6 +158,51 @@ void TM1637::displayFloat(float value)
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}
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void TM1637::displayFloat(float value, uint8_t fixedPoint)
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{
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// DEBUG
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// Serial.println(value);
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uint8_t data[8] = { 16, 16, 16, 16, 16, 16, 16, 16};
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float v = value;
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int dpos = _digits - 1;
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int last = _digits;
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bool neg = (v < 0);
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int point = fixedPoint + 1;
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if (neg)
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{
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v = -v;
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dpos--;
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last--;
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}
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// v += 0.0001; // Bug fix for 12.999 <> 13.000
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v += 0.001; // Bug fix for 12.99 <> 13.00
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while (v >= 10)
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{
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v /= 10;
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dpos--;
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point++;
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}
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if (neg)
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{
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data[point] = 17; // minus sign;
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}
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for (int i = point - 1; i > -1; i--)
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{
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int d = v;
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data[i] = d;
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v -= d;
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v *= 10;
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}
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displayRaw(data, fixedPoint);
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}
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void TM1637::displayHex(uint32_t value)
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{
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uint8_t data[8] = { 16, 16, 16, 16, 16, 16, 16, 16};
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@ -166,7 +211,7 @@ void TM1637::displayHex(uint32_t value)
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for (int i = 0; i < _digits; i++)
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{
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uint32_t t = v / 16;
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data[i] = v & 0x0F; // faster than %
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data[i] = v & 0x0F; // faster than %
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v = t;
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}
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displayRaw(data, -1);
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@ -180,13 +225,19 @@ void TM1637::displayClear()
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}
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void TM1637::setBrightness(uint8_t b)
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void TM1637::setBrightness(uint8_t brightness)
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{
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_brightness = b;
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_brightness = brightness;
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if (_brightness > 0x07) _brightness = 0x07;
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}
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uint8_t TM1637::getBrightness()
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{
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return _brightness;
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}
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void TM1637::setDigitOrder(uint8_t a, uint8_t b,
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uint8_t c, uint8_t d, uint8_t e,
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uint8_t f, uint8_t g, uint8_t h)
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@ -202,7 +253,7 @@ void TM1637::setDigitOrder(uint8_t a, uint8_t b,
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}
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// Set sign bit on any char to display decimal point
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// Set sign bit on any char to display decimal point
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void TM1637::displayPChar( char * data )
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{
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start();
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@ -227,6 +278,16 @@ void TM1637::displayPChar( char * data )
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void TM1637::displayRaw(uint8_t * data, uint8_t pointPos)
|
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{
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// DEBUG
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// for (uint8_t d = 0; d < _digits; d++)
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// {
|
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// uint8_t x = data[_digits - d];
|
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// if (x < 0x10) Serial.print('0');
|
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// Serial.print(x, HEX);
|
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// Serial.print(' ');
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// }
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// Serial.println();
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|
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uint8_t b = 0;
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start();
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@ -269,7 +330,7 @@ void TM1637::displayRaw(uint8_t * data, uint8_t pointPos)
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//
|
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uint8_t TM1637::writeByte(uint8_t data)
|
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{
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// shift out data 8 bits LSB first
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// shift out data 8 bits LSB first
|
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for (uint8_t i = 8; i > 0; i--)
|
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{
|
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writeSync(_clock, LOW);
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@ -282,12 +343,12 @@ uint8_t TM1637::writeByte(uint8_t data)
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writeSync(_data, HIGH);
|
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writeSync(_clock, HIGH);
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// get ACKNOWLEDGE
|
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// get ACKNOWLEDGE
|
||||
pinMode(_data, INPUT);
|
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delayMicroseconds(_bitDelay);
|
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uint8_t rv = digitalRead(_data);
|
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// FORCE OUTPUT LOW
|
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// FORCE OUTPUT LOW
|
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pinMode(_data, OUTPUT);
|
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digitalWrite(_data, LOW);
|
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delayMicroseconds(_bitDelay);
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@ -318,18 +379,19 @@ void TM1637::writeSync(uint8_t pin, uint8_t val)
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digitalWrite(pin, val);
|
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#if defined(ESP32)
|
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nanoDelay(2);
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nanoDelay(21); // delay(2) is not enough in practice.
|
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#endif
|
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// other processors may need other "nanoDelay(n)"
|
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// other processors may need other "nanoDelay(n)"
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}
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// keyscan results are reversed left for right from the data sheet.
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// here are the values returned by keyscan():
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// pin 2 3 4 5 6 7 8 9
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// sg1 sg2 sg3 sg4 sg5 sg6 sg7 sg8
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// 19 k1 0xf7 0xf6 0xf5 0xf4 0xf3 0xf2 0xf1 0xf0
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// 20 k2 0xef 0xee 0xed 0xec 0xeb 0xea 0xe9 0xe8
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// keyscan results are reversed left for right from the data sheet.
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// here are the values returned by keyscan():
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//
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// pin 2 3 4 5 6 7 8 9
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// sg1 sg2 sg3 sg4 sg5 sg6 sg7 sg8
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// 19 k1 0xf7 0xf6 0xf5 0xf4 0xf3 0xf2 0xf1 0xf0
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// 20 k2 0xef 0xee 0xed 0xec 0xeb 0xea 0xe9 0xe8
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uint8_t TM1637::keyscan(void)
|
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{
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@ -337,7 +399,7 @@ uint8_t TM1637::keyscan(void)
|
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uint8_t key;
|
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start();
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key = 0;
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writeByte(TM1637_READ_KEYSCAN); // includes the ACK, leaves DATA low
|
||||
writeByte(TM1637_READ_KEYSCAN); // includes the ACK, leaves DATA low
|
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pinMode(_data, INPUT_PULLUP);
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for (uint8_t i = 0; i <= 7; i++) {
|
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@ -353,10 +415,10 @@ uint8_t TM1637::keyscan(void)
|
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delayMicroseconds(halfDelay);
|
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writeSync(_clock, HIGH);
|
||||
|
||||
// wait for ACK
|
||||
// wait for ACK
|
||||
delayMicroseconds(halfDelay);
|
||||
|
||||
// FORCE OUTPUT LOW
|
||||
// FORCE OUTPUT LOW
|
||||
pinMode(_data, OUTPUT);
|
||||
digitalWrite(_data, LOW);
|
||||
delayMicroseconds(halfDelay);
|
||||
@ -365,8 +427,8 @@ uint8_t TM1637::keyscan(void)
|
||||
}
|
||||
|
||||
|
||||
// nanoDelay() makes it possible to go into the sub micron delays.
|
||||
// It is used to lengthen pulses to be minimal 400 ns but not much longer. See datasheet.
|
||||
// nanoDelay() makes it possible to go into the sub micron delays.
|
||||
// It is used to lengthen pulses to be minimal 400 ns but not much longer. See datasheet.
|
||||
void TM1637::nanoDelay(uint16_t n)
|
||||
{
|
||||
volatile uint16_t i = n;
|
||||
@ -381,13 +443,13 @@ uint8_t TM1637::asciiTo7Segment ( char c )
|
||||
20 | | 02
|
||||
-40-
|
||||
10 | | 04
|
||||
-08- .80
|
||||
-08- .80
|
||||
*/
|
||||
// 7+1 Segment patterns for ASCII 0x30-0x5F
|
||||
const uint8_t asciiToSegments[] = {
|
||||
0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, // 0123 4567
|
||||
const uint8_t asciiToSegments[] = {
|
||||
0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, // 0123 4567
|
||||
0x7f,0x6f,0x09,0x89, 0x58,0x48,0x4c,0xD3, // 89:; <=>?
|
||||
0x5f,0x77,0x7c,0x39, 0x5E,0x79,0x71,0x3d, // @ABC DEFG
|
||||
0x5f,0x77,0x7c,0x39, 0x5E,0x79,0x71,0x3d, // @ABC DEFG
|
||||
0x76,0x06,0x0E,0x75, 0x38,0x37,0x54,0x5c, // HIJK LMNO
|
||||
0x73,0x67,0x50,0x6D, 0x78,0x3E,0x1C,0x9c, // PQRS TUVW
|
||||
0x76,0x6E,0x5B,0x39, 0x52,0x0F,0x23,0x08 // XYZ[ /]^_
|
||||
@ -405,5 +467,5 @@ uint8_t TM1637::asciiTo7Segment ( char c )
|
||||
}
|
||||
|
||||
|
||||
// -- END OF FILE --
|
||||
// -- END OF FILE --
|
||||
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
// FILE: TM1637.h
|
||||
// AUTHOR: Rob Tillaart
|
||||
// DATE: 2019-10-28
|
||||
// VERSION: 0.3.4
|
||||
// VERSION: 0.3.5
|
||||
// PUPROSE: TM1637 library for Arduino
|
||||
// URL: https://github.com/RobTillaart/TM1637_RT
|
||||
|
||||
@ -13,7 +13,7 @@
|
||||
|
||||
#include "Arduino.h"
|
||||
|
||||
#define TM1637_LIB_VERSION (F("0.3.4"))
|
||||
#define TM1637_LIB_VERSION (F("0.3.5"))
|
||||
|
||||
|
||||
class TM1637
|
||||
@ -28,11 +28,12 @@ public:
|
||||
void displayRaw(uint8_t * data, uint8_t pointPos);
|
||||
void displayInt(long value);
|
||||
void displayFloat(float value);
|
||||
void displayFloat(float value, uint8_t fixedPoint);
|
||||
void displayHex(uint32_t value);
|
||||
void displayClear();
|
||||
|
||||
void setBrightness(uint8_t b);
|
||||
uint8_t getBrightness() { return _brightness; };
|
||||
void setBrightness(uint8_t brightness);
|
||||
uint8_t getBrightness();
|
||||
|
||||
// tune the timing of writing bytes.
|
||||
void setBitDelay(uint8_t bitDelay = 10) { _bitDelay = bitDelay; };
|
||||
@ -67,9 +68,9 @@ private:
|
||||
void nanoDelay(uint16_t n);
|
||||
|
||||
// Override in your own derived class for custom character translation
|
||||
virtual uint8_t asciiTo7Segment ( char c ) ;
|
||||
virtual uint8_t asciiTo7Segment ( char c ) ;
|
||||
};
|
||||
|
||||
|
||||
// -- END OF FILE --
|
||||
// -- END OF FILE --
|
||||
|
||||
|
||||
@ -0,0 +1,59 @@
|
||||
//
|
||||
// FILE: TM1637_float_point.ino
|
||||
// AUTHOR: marshalab, Rob Tillaart
|
||||
// PURPOSE: demo TM1637 library
|
||||
// URL: https://github.com/RobTillaart/TM1637
|
||||
|
||||
|
||||
#include "TM1637.h"
|
||||
|
||||
|
||||
TM1637 TM;
|
||||
|
||||
uint32_t start, stop;
|
||||
volatile float f = 3.14159265;
|
||||
|
||||
|
||||
void setup()
|
||||
{
|
||||
Serial.begin(115200);
|
||||
Serial.println(__FILE__);
|
||||
|
||||
TM.begin(2, 3); // clockpin, datapin
|
||||
|
||||
TM.displayFloat(1.42425);
|
||||
delay(2000);
|
||||
TM.displayFloat(1.42425, 2);
|
||||
delay(2000);
|
||||
TM.displayFloat(-1.42425);
|
||||
delay(2000);
|
||||
TM.displayFloat(-1.42425, 2);
|
||||
delay(2000);
|
||||
TM.displayClear();
|
||||
delay(5000);
|
||||
}
|
||||
|
||||
|
||||
void loop()
|
||||
{
|
||||
test();
|
||||
delay(1000);
|
||||
}
|
||||
|
||||
|
||||
void test()
|
||||
{
|
||||
start = millis();
|
||||
for (int i = 0; i < 1000; i++)
|
||||
{
|
||||
TM.displayFloat(f, 2); // there is loop overhead etc
|
||||
f += 1;
|
||||
}
|
||||
stop = millis();
|
||||
Serial.print("TIME:\t");
|
||||
Serial.print(stop - start);
|
||||
Serial.println(" ms");
|
||||
}
|
||||
|
||||
|
||||
// -- END OF FILE --
|
||||
@ -15,7 +15,7 @@
|
||||
"type": "git",
|
||||
"url": "https://github.com/RobTillaart/TM1637_RT"
|
||||
},
|
||||
"version": "0.3.4",
|
||||
"version": "0.3.5",
|
||||
"license": "MIT",
|
||||
"frameworks": "arduino",
|
||||
"platforms": "*",
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
name=TM1637_RT
|
||||
version=0.3.4
|
||||
version=0.3.5
|
||||
author=Rob Tillaart <rob.tillaart@gmail.com>
|
||||
maintainer=Rob Tillaart <rob.tillaart@gmail.com>
|
||||
sentence=TM1637 Library for Arduino.
|
||||
sentence=TM1637 Library for Arduino.
|
||||
paragraph=For 6 digit 7 segment display.
|
||||
category=Display
|
||||
url=https://github.com/RobTillaart/TM1637_RT
|
||||
|
||||
@ -1,7 +1,6 @@
|
||||
//
|
||||
// FILE: unit_test_001.cpp
|
||||
// AUTHOR: Rob Tillaart
|
||||
// VERSION: 0.1.0
|
||||
// DATE: 2021-04-16
|
||||
// PURPOSE: unit tests for the TM1637 library
|
||||
// https://github.com/RobTillaart/TM_1637_RT
|
||||
@ -97,4 +96,6 @@ unittest(test_set_bit_delay)
|
||||
|
||||
unittest_main()
|
||||
|
||||
// --------
|
||||
|
||||
// -- END OF FILE --
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user