0.3.1 AD5144A

libraries/AD5144A/AD5144A.cpp

@@ -1,7 +1,7 @@
 //
 //    FILE: AD5144A.cpp
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.3.0
+// VERSION: 0.3.1
 // PURPOSE: I2C digital potentiometer AD5144A
 //    DATE: 2021-04-30
 //     URL: https://github.com/RobTillaart/AD5144A

libraries/AD5144A/AD5144A.h

@@ -2,7 +2,7 @@
 //
 //    FILE: AD5144A.h
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.3.0
+// VERSION: 0.3.1
 // PURPOSE: I2C digital PotentioMeter AD5144A
 //    DATE: 2021-04-30
 //     URL: https://github.com/RobTillaart/AD5144A
@@ -14,7 +14,7 @@
 #include "Wire.h"
 
 
-#define AD51XXA_VERSION           (F("0.3.0"))
+#define AD51XXA_VERSION           (F("0.3.1"))
 
 
 #define AD51XXA_OK                0

libraries/AD5144A/CHANGELOG.md

@@ -5,6 +5,10 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.3.1] - 2024-01-25
+- update readme.md (multiplexer)
+
+
 ## [0.3.0] - 2023-11-24.
 - simplify **begin()**, remove setting Wire pins from library.
 - add **getAddress()**

libraries/AD5144A/LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2021-2023 Rob Tillaart
+Copyright (c) 2021-2024 Rob Tillaart
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

libraries/AD5144A/README.md

@@ -83,6 +83,24 @@ Typical 0x28, 0x2A or 0x2B.
 The AD5144A devices support standard 100 kHz, and fast 400 kHz, data transfer modes.
 
 
+#### I2C multiplexing
+
+Sometimes you need to control more devices than possible with the default
+address range the device provides.
+This is possible with an I2C multiplexer e.g. TCA9548 which creates up 
+to eight channels (think of it as I2C subnets) which can use the complete 
+address range of the device. 
+
+Drawback of using a multiplexer is that it takes more administration in 
+your code e.g. which device is on which channel. 
+This will slow down the access, which must be taken into account when
+deciding which devices are on which channel.
+Also note that switching between channels will slow down other devices 
+too if they are behind the multiplexer.
+
+- https://github.com/RobTillaart/TCA9548
+
+
 ## Interface
 
 The library has a number of functions which are all quite straightforward.

libraries/AD5144A/examples/AD5144A_test_preload_sync/AD5144A_test_preload_sync.ino

@@ -2,7 +2,6 @@
 //    FILE: AD5144A_test_preload_sync.ino
 //  AUTHOR: Rob Tillaart
 // PURPOSE: demo
-//    DATE: 2021-05-04
 //     URL: https://github.com/RobTillaart/AD5144A
 
 
@@ -76,4 +75,4 @@ void test_preloadAll()
 }
 
 
-// -- END OF FILE --
+//  -- END OF FILE --

libraries/AD5144A/examples/AD5144A_test_speed/AD5144A_test_speed.ino

@@ -71,4 +71,4 @@ void test_i2C_clock(uint32_t clock)
 }
 
 
-// -- END OF FILE --
+//  -- END OF FILE --

libraries/AD5144A/examples/AD5144A_test_write/AD5144A_test_write.ino

@@ -51,5 +51,5 @@ void loop()
 }
 
 
-// -- END OF FILE --
+//  -- END OF FILE --
 

libraries/AD5144A/library.json

@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/AD5144A.git"
   },
-  "version": "0.3.0",
+  "version": "0.3.1",
   "license": "MIT",
   "frameworks": "arduino",
   "platforms": "*",

libraries/AD5144A/library.properties

@@ -1,5 +1,5 @@
 name=AD5144A
-version=0.3.0
+version=0.3.1
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino Library for AD5144A 4 Channel digital potentiometer.