100% compatible with Arduino Uno. It is cheaper but it has extensive GPIO capability. It comes with lithium battery and RTC battery. Suitable for small monitoring and data logging applications due to limited flash memory availability.

With the free Hardwire-Arduino free software library, it is possible to integrate the platform within your own project in just a few minutes.

  • Microcontroller: ATmega328
  • Flash Memory: 32 Kb
  • EEPROM: 1Kb
  • SRAM: 2Kb
  • I/O: 14 digital, 6 PWM and 6 analog inputs