mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-09-20 00:55:58 -04:00
99 lines
1.8 KiB
C++
99 lines
1.8 KiB
C++
//
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// FILE: oneWireSearch.ino
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.5
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// PURPOSE: scan for 1-Wire devices + code snippet generator
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// DATE: 2015-june-30
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// URL: https://github.com/RobTillaart/DS18B20_RT
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// URL: http://forum.arduino.cc/index.php?topic=333923
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//
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// inspired by http://www.hacktronics.com/Tutorials/arduino-1-wire-address-finder.html
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//
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// HISTORY
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// 0.1.00 initial version
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// 0.1.01 first published version
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// 0.1.02 small output changes
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// 0.1.03 added more explicit range
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// 0.1.04 added CRC check
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// 0.1.5 fix do while loop (thanks pzygielo)
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// UNO has pin 2..20
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// MEGA and others have different range
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const int startPin = 2;
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const int endPin = 20;
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#include "OneWire.h"
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uint8_t findDevices(int pin)
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{
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OneWire ow(pin);
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uint8_t address[8];
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uint8_t count = 0;
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if (ow.search(address))
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{
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Serial.print("\nuint8_t pin");
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Serial.print(pin, DEC);
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Serial.println("[][8] = {");
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do
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{
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count++;
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Serial.println(" {");
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for (uint8_t i = 0; i < 8; i++)
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{
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Serial.print("0x");
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if (address[i] < 0x10) Serial.print("0");
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Serial.print(address[i], HEX);
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if (i < 7) Serial.print(", ");
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}
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Serial.print(" },");
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// CHECK CRC
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if (ow.crc8(address, 7) == address[7])
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{
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Serial.println("\t\t// CRC OK");
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}
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else
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{
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Serial.println("\t\t// CRC FAILED");
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}
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} while (ow.search(address));
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Serial.println("};");
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Serial.print("// nr devices found: ");
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Serial.println(count);
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}
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return count;
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}
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void setup()
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{
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Serial.begin(115200);
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Serial.println("//\n// Start oneWireSearch.ino \n//");
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for (uint8_t pin = startPin; pin < endPin; pin++)
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{
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findDevices(pin);
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}
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Serial.println("\n//\n// End oneWireSearch.ino \n//");
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}
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void loop()
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{
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}
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// -- END OF FILE --
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