Friday, June 22, 2012

GMduino II, Arduino Clone with RTC and EEPROM

Project Objective: To design an Arduino clone with through hole parts for easy assembly. The clone also includes an on board real time calendar clock with battery backup and an EEPROM. The board should operate at 5V and 3.3V including the RTC.

  1. Arduino clone with stacking connectors
  2. MCU: ATmega328P with Optiboot
  3. Through hole parts, except for regulators
  4. Serial communication using breakout boards
  5. Dual ldo regulators for 5V and 3.3V
  6. Power :input:  6V to 9V wart or USB jumper selectable
  7. Power switch
  8. Auto reset defeat switch
  9. On board I2C, EEPROM and RTC with battery backup.
  10. Vertical reset and ISP at front
Introduction: The project is an outgrowth of the Rainwater Monitoring System , RMS. The original development was done with the uLab28 PIC, then resulting in the Picduino. The RMS is basically a water tank level data logger with LCD display and keyboard.

Note: Layout complete ready for BatchPCB, GMduino.03C

Under construction

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