chipKIT WiFire board
Digilent chipKIT Wi-Fire board (schematics, manual, Eagle files) is compatible with Arduino platform, but based on Microchip PIC32MZ microcontroller.
Features:
- PIC32MZ microcontroller 200 MHz (MIPS architecture, DSP)
- 43 available i/o pins, 5V tolerant
- 12 analog inputs, 0V to 3.3V voltage range
- Microchip MRF24WG0MA WiFi module at SPI4
- Micro SD card connector at SPI3
- On-board oscillator 24 MHz
- USB 2.0 OTG controller with USB and micro-USB connectors
- Mini-USB connector with FTDI convertor to UART4
- Four user LEDs
- Two user buttons
- Reset button
- Potentiometer
- JTAG and ICSP ports
- 3.3V operating voltage
- Power select switch: from mini-USB, from USB OTG or from external source
- External power connector, 7V to 15V input voltage recommended, 30V max
Memory:
- 2 Mbytes of program Flash memory
- 160 kbytes of additional boot Flash memory
- 512 kbytes of RAM
A rich set of peripheral functions is available: UART, SPI, I2C, I2S, ADC, timers. Two internal oscillators available: 8 MHz and 32 kHz.
| Function | PIC32 | Signal | Signal | PIC32 | Function |
|---|---|---|---|---|---|
| SCL | RA2 (59) | SCL2 | |||
| SDA | RA3 (60) | SDA2 | |||
| RA9 (28) | 41 | 42/A | RA10 (29) | AREF | |
| SCK6 | RD15 (48) | 40 | GND | -- | |
| RD14 (47) | 39 | 13 | RG6 (10) | SCK2, LED1 | |
| RD12 (79) | 38 | 12 | RF0 (85) | ||
| SCL2 | RA2 (59) | 37 | 11 | RD11 (70) | |
| RF1 (86) | 36 | 10 | RG9 (16) | ||
| RC1 (6) | 35 | 9 | RD3 (78) | ||
| RD5 (82) | 34 | 8 | RA14 (66) | SCL1 | |
| RE7 (5) | 33 | 7 | RE9 (19) | ||
| RE6 (4) | 32 | 6 | RD2 (77) | ||
| RE5 (3) | 31 | 5 | RD1 (76) | SCK1 | |
| RE4 (100) | 30 | 4 | RA3 (60) | SDA2 | |
| RE3 (99) | 29 | 3 | RD0 (71) | ||
| RE2 (98) | 28 | 2 | RE8 (18) | ||
| RE1 (94) | 27 | 1 | RF8 (58) | SCL3 | |
| RE0 (91) | 26 | 0 | RF2 (57) | SDA3 |
| Function | PIC32 | Signal | Signal | PIC32 | Function |
|---|---|---|---|---|---|
| RB5 (20) | 14/A0 | 20/A6 | RB3 (22) | ||
| RB9 (33) | 15/A1 | 21/A7 | RB2 (23) | ||
| RC2 (7) | 16/A2 | 22/A8 | RB4 (21) | ||
| RB15 (44) | 17/A3 | 23/A9 | RB1 (24) | ||
| SDA4 | RG7 (11) | 18/A4 | 24/A10 | RB8 (32) | |
| SCL4 | RG8 (12) | 19/A5 | 25/A11 | RB0 (25) |
| Signal | PIC32 | Function |
|---|---|---|
| 13 | RG6 (10) | LED1, SCK2 |
| 43 | RD4 (81) | LED2 |
| 44 | RB11 (35) | LED3 |
| 45 | RG15 (1) | LED4 |
| 46 | RA5 (2) | Button 1 |
| 47 | RA4 (61) | Button 2 |
| 48/A12 | RB13 (42) | Potentiometer |
| 49/A13 | RB12 (41) | 1/11 of input voltage |
| 50 | RD13 (80) | 5V power enable |
| 51 | RB14 (43) | SD card SCK3 |
| 52 | RC3 (8) | SD card SS3 |
| 53 | RB10 (34) | SD card SDI3 |
| 54 | RC4 (9) | SD card SDO3 |
| 55 | RD10 (69) | WiFi SCK4 |
| 56 | RD9 (68) | WiFi SS4 |
| 57 | RF5 (65) | WiFi SDI4 |
| 58 | RG0 (88) | WiFi SDO4 |
| 59 | RA15 (67) | WiFi INT4 |
| 60 | RG1 (87) | WiFi hibernate |
| 61 | RF4 (64) | WiFi reset |