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Tinyb20

Slightly modified version of attiny-ds18b20-library

Intended to use with Bluetooth Mesh temperature sensor (BTB20)

It measures temperature by DS18B20 sensor on PB2 pin and sends it to uart on PB3/PB4 pins.

Format:

  • 1st byte: 0xFF - start of new measurement sign
  • 2nd byte: the whole part of measured value
  • 3rd byte: the decimal part of measured value

Example

0xFF 0x1B 0x08

equals to 27.8 degrees

Not tested with negative temperatures

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