nedoCPU-16 is devboard for 28-pin PIC16F87X microcontroller with optional serial adapter. Board has 24 pins in 1 row that makes it bread-board friendly:

First 8 pins - port A (X1):

• A0 - bit 0 of port A

• A1 - bit 1 of port A

• A2 - bit 2 of port A

• A3 - bit 3 of port A

• A4 - bit 4 of port A

• A5 - bit 5 of port A

• +5V - power (OUTPUT if you have IC6 and JP1 closed, INPUT of stable +5V if you don't have IC6 or JP1 open)

• GND - ground

Second 8 pins - port B (X2):

• B0 - bit 0 of port B

• B1 - bit 1 of port B

• B2 - bit 2 of port B

• B3 - bit 3 of port B

• B4 - bit 4 of port B

• B5 - bit 5 of port B

• B6 - bit 6 of port B

• B7 - bit 7 of port B

Third 8 pins - port C (X3):

• C0 - bit 0 of port C

• C1 - bit 1 of port C

• C2 - bit 2 of port C

• C3 - bit 3 of port C

• C4 - bit 4 of port C

• C5 - bit 5 of port C

• C6 - bit 6 of port C, also goes as TX in serial interface (X5)

• C7 - bit 7 of port C, also goes as RX in serial interface (X5)

Power goes to X4 (if you have 7-35V then IC6 will do +5V out of it) or if you already have stable +5V then apply it to 7th pin of 1st 8-pin row and do not solder IC6 (7805) or open jumper switch JP1.

X5 is TTL-level serial interface, compatible with many TTL-to-RS232 and TTL-to-USB adapters:

• (1) Rx

• (2) Tx

• (3) GND

• (4) +5V

And X6 is ICSP connector for PICkit3 to program or debug.

By default you will get bare PCB without place for serial adapter:

But you can choose option to have PCB with place for serial adapter:

Further options will give you opportunity to purchase a KIT (PCB with set of components for you to solder) or even fully assembled and tested board that can be immediately used in your next automation project...