Compact board for ATmega1284P development

• through hole components for 1Mhz-20Mhz (12Mhz listed)crystal 20pF rated crystal, 2 caps 20pF
• resistors for OSC (0805, 1M), I2C pullups(0805, 4.7K), and RESET pullup(0805,10K)
• 2 x WS2812(S) RGB leds (optional)
• ICSP port
• JTAG port
• 2 sets of jumper ports with VCC, GND, 1xI2c, 1xUART, 2xADC, and 2xGPIO each.

The AVR ISP port:

• Pin 1 - MOSI
• Pin 2 - VCC
• Pin 3 - NC
• Pin 4 - GND
• Pin 5 - RESET
• Pin 6 - GND
• Pin 7 - SCK
• Pin 8 - GND
• Pin 9 - MISO
• Pin 10 - GND

The 2 expansion ports:

• Pin 1 - VCC
• Pin 2 - SDA/PCINT17
• Pin 3 - SCL/PCINT16
• Pin 4 - ADC0/PCINT0
• Pin 5 - ADC1/PCINT1
• Pin 6 - UART-RXD0/PCINT24
• Pin 7 - UART-TXD0/PCINT25
• Pin 8 - GPIO/PCINT28
• Pin 9 - GPIO/PCINT29

• Pin 10 - GND

• Pin 1 - VCC

• Pin 2 - SDA/PCINT17
• Pin 3 - SCL/PCINT16
• Pin 4 - ADC3/PCINT3
• Pin 5 - ADC4/PCINT4
• Pin 6 - UART-RXD1/PCINT26
• Pin 7 - UART-TXD1/PCINT27
• Pin 8 - GPIO/PCINT30
• Pin 9 - GPIO/PCINT31
• Pin 10 - GND

The third expansion/non-standard JTAG port:

• Pin 1 - VCC
• Pin 2 - SDA/PCINT17
• Pin 3 - SCL/PCINT16
• Pin 4 - ADC5/PCINT5
• Pin 5 - ADC6/PCINT6
• Pin 6 - TCK/PCINT18
• Pin 7 - TMS/PCINT19
• Pin 8 - TDO/PCINT20
• Pin 9 - TDI/PCINT21
• Pin 10 - GND

2 x WS2812S RGB LEDs chained:

• PCINT8 - WS2812S - DataIn/DI
• 1st LED(at notch end)
• 2nd LED(opposite notch end)