Prototyping an 8-bit microcontroller on breadboard is very common for most of electronic hobbyists. However using a prototype board with a device programmer, microcontrollers and other related components could be ease of use.

I have a few dozens of small 8-bit PIC microcontrollers left from previous projects with various device pin outs. So I need to put them on a single board for next time usage without placing them on breadboard. It could help saving time, and safer if there's any wrong circuit wiring.

This board has a device programmer that can program,

1. PIC16F876A or PIC16F886 (28-pin)
2. PIC16F1459 (20-pin)
3. PIC16F1827 (18-pin)
4. PIC16F676 or PIC16F630 (14-pin)
5. PIC12F683 (8-pin).

These are some PIC microcontroller I have.

I put additional components,

1. RS-232 to TTL converter
2. on-board +5V and +3.3V DC power supply
3. three-digit common cathode display
4. LED
5. 4x4 matrix keypad
6. I2C RTC and EEPROM
7. passive buzzer
8. and ADC input (POT and LM35)

Most of component i use on this PCB are through-hole components. It seem to be a classic PCB. Because I have most most them.

Finished PCB is nearly at the size of an A4 paper but it doesn't matter.

• PIC Microcontroller
• PCB