PIC-IoT Wx features a mikroBUS Socket footprint for expanding the functionality of the development kit using MikroElektronika Click Boards and other mikroBUS add-on boards. The socket is populated with two 1x8 2.54 mm pitch female headers and is ready to mount add-on boards.
| mikroBUS™ Socket Pin | PIC24FJ128GA705 Pin | Function | Shared Functionality |
|---|---|---|---|
| AN | RB14 | AN6 | — |
| RST | RB15 | GPIO | — |
| CS | RA0 | SPI2 SS | — |
| SCK | RA1 | SPI2 SCK | — |
| MISO | RB0 | SPI2 MISO | — |
| MOSI | RB1 | SPI2 MOSI | — |
| +3.3V | VDD | VCC_TARGET, 3.3V supply | — |
| GND | GND | Ground | — |
| PWM | RC6 | MCCP | — |
| INT | RB7 | GPIO | — |
| RX | RB6 | UART2 RX | — |
| TX | RB5 | UART2 TX | — |
| SCL | RB8 | I2C SCL1 | — |
| SDA | RB9 | I2C SDA1 | — |
| +5V | — | VCC_MUX1, MCP73871 output | — |
| GND | GND | Ground | — |
1) A 0-ohm resistor has been soldered to connect the VCC_MUX pin to the mikroBUS socket. If an add-on module cannot handle 5V on this pin, the 0-ohm resistor has to be removed. For more information, see Hardware Modifications.