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README.md

MySensors Li-po/USB powered wirelles node

Build status Framework Badge Arduino

PCB size as 18500 Li-po battery board with ATmega328p with integrated USB charger and battery protection IC. Supports ATSHA204A CryptoAuth chip, DS18B20 temperature IC and Meder reed switch.

Power consumption

  • sleep: 58.1uA
  • wakeup: 18.2mA

Supported radios:

  • NRF24L01 SMD
  • NRF24L01+LNA+PA SMD

Pins used:

  • D2 = reed switch 1
  • D3 = reed switch 2
  • D4 = 1-Wire bus with R2 pull-up to D5
  • D5 = 1-Wire supply
  • D7 = LED indication
  • D9 = CE pin
  • D10 = CSN
  • SPI = radios
  • A2 = ATSHA204A
  • A7 = battery monitor

PCB top view

PCB top view

PCB bottom view

PCB bottom view

ATmega328p fuses

  • HIGH: DA
  • LOW: E2
  • EXTENDED: 06
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