This is a bunch of most used port pins of PIC microcontroller. These ports ease the process of interfacing external modules. Modules available through special ports are SPI (J45), I2C (J19), UART (J35), Analog (AN0), PWM and External Interrupt (INT) pins with power & ground.
| J35 | 1 | 2 | 3 |
| Pin Name | TX | RX | GND |
TX – UART transmitter pin, RC6
RX – UART receiver pin, RC7
GND – Ground pin
| J19 | 1 | 2 | 3 |
| Pin Name | SDA | SCL | GND |
SDA – Serial Data pin of I2C module, RB0
SCL – Serial Clock pin of I2C module, RB1
GND – Ground pin
| J45 | 1 | 2 | 3 | 4 |
| Pin Name | CS | SCK | SDI | SDO |
CS – Chip Select pin, RB4
SCK – Serial Clock pin of SPI module, RB1
SDI – Serial Data pin of SPI module, RB0
GND – Ground pin
| J31 | 1 | 2 | 3 | 4 |
| Pin Name | AN0 | GND | PWM | INT |
AN0 – Analog pin, RA0
GND – Ground
PWM – Pulse width modulator pin, RC2
INT – External interrupt, RD1
| J31 | 1 | 2 |
| Pin Name | GND | 5V |
GND – Ground pin
5V – Power, 5V
