WR3 Wi-Fi Module
| Parameter | Value |
|---|---|
| MCU | RTL8710BN |
| Manufacturer | Realtek |
| Series | AmebaZ |
| Max. clock | 125 MHz |
| Flash size | 2 MiB |
| RAM size | 256 KiB |
| Voltage | 3.0V - 3.6V |
| I/O | 7x GPIO, 2x UART, 1x ADC |
| Wi-Fi | 802.11 b/g/n |
Pinout
Arduino core pin map
| No. | Pin | Alt. function | PWM |
|---|---|---|---|
| D0 | PA_22 | PWM5 | |
| D1 | PA_19 | ||
| D2 | PA_14 | PWM0 | |
| D3 | PA_15 | PWM1 | |
| D4 | PA_0 | PWM2 | |
| D5 | PA_20 | ||
| D6 | PA_29 | UART_Log_RXD | PWM4 |
| D7 | PA_30 | UART_Log_TXD | PWM3 |
| D8 | PA_5 | PWM4 | |
| D9 | PA_12 | PWM3 | |
| D10 | PA_18 | UART0_RXD | |
| D11 | PA_23 | UART0_TXD | PWM0 |
| A0 | PA_19 | ||
| A1 | - | ||
| A2 | PA_20 |