Arduino 828p Pro Mini

I bought this small board Arduino Mini (the right board, not the left board which is just a power regulator) from eBay from China for less than $2 plus S/H.  The bareboard has SMD version of Atmel AVR 828p, a RESET switch (left), and bunch of I/O ports.  The board seems a clone of what Sparkfun has (see https://www.sparkfun.com/products/11113)

Specifications:

  • 20 Digital input / output ports:TX, RX, D2..D13, A0 .. A5
  • 8 analog inputs ports:A0 ~ A7
  • 1 pairs of TTL level serial transceiver ports RX / TX
  • 6 PWM ports: D3, D5, D6, D9, D10, D11
  • Main Chip: Atmel Atmega328P-AU
  • Support Serial Download
  • Support external power supply 3.8-12V DC
  • Support 12V or less than 12V battery power supply
  • 16MHz clock frequency
  • Size: 33.8mm x 18mm
  • Supports auto-reset
  • Max 150mA output
  • Over current protected
  • Weighs less than 2 grams

When supplying unregulated power to the board, we should connect to the “RAW” pin and not VCC.
I/O pins are labeled “D0”, “D1”, … “D13” for digital I/Os, and “A0” to “A7” for analog inputs.  There are two TRO and RXI pins.

Label on Board Function(s)
A0 ADC0
A1 ADC1
A2 ADC2
A3 ADC3
A4 ADC4/SDA
A5 ADC5/SCL
A6 ADC6
A7 ADC7
RXI D0/RXD
TXO D1/TXD
D2 D2/INT0
D3 D3/INT1
D4 D4/T0
D5 D5
D6 D6/OC0B
D7 D7/IN1
D7 D8/ICP1
D7 D9/PCINT1
D7 D10/PCINT2
D7 D11/PCINT3
D7 D12/MISO
D7 D13/SCK/LED
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About The Seeker

Silicon Valley
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