Renesas RA4M1 (Cortex-M4 48 MHz, 256 KB flash, 32 KB SRAM) met onboard 12x8 LED-matrix, ESP32-S3 WiFi/BLE co-processor en Qwiic-connector. 5V signal-level op de UNO-headers via level shifter; intern is de RA4M1 een 3.3V chip.
| Pin | Signal | Description |
|---|---|---|
AREF |
reference | Analog reference voltage for the ADC; usually externally filtered or left unused |
GND |
ground | Ground return for signals and power |
D13 |
digital | Digital I/O, also the onboard LED/SCK-capable pin |
D12 |
digital | Digital I/O; commonly used as SPI MISO |
D11 |
PWM | Digital I/O; PWM-capable and commonly used as SPI MOSI |
D10 |
PWM | Digital I/O; PWM-capable and often used as SPI chip select |
D9 |
PWM | Digital I/O; PWM-capable general-purpose pin |
D8 |
digital | Digital I/O; general-purpose pin |
D7 |
digital | Digital I/O; general-purpose pin |
D6 |
PWM | Digital I/O; PWM-capable general-purpose pin |
D5 |
PWM | Digital I/O; PWM-capable general-purpose pin |
D4 |
digital | Digital I/O; general-purpose pin |
D3 |
PWM | Digital I/O; PWM-capable general-purpose pin |
D2 |
interrupt | Digital I/O; interrupt-capable general-purpose pin |
IOREF |
reference | Board I/O voltage reference; indicates 5V-level UNO header logic |
RESET |
reset | Active-low reset input for the RA4M1 and board logic |
3.3V |
power-low | Regulated 3.3V output for low-power peripherals |
5V |
power | 5V supply rail for external shields and devices |
GND.1 |
ground | Ground return for power and signals |
GND.2 |
ground | Ground return for power and signals |
VIN |
power-high | External input supply for the onboard regulator |
A0 |
analog | Analog input to the RA4M1 ADC; also usable as digital I/O |
A1 |
analog | Analog input to the RA4M1 ADC; also usable as digital I/O |
A2 |
analog | Analog input to the RA4M1 ADC; also usable as digital I/O |
A3 |
analog | Analog input to the RA4M1 ADC; also usable as digital I/O |
A4 |
SDA | Analog input and shared I2C SDA line; also on the Qwiic connector |
A5 |
SCL | Analog input and shared I2C SCL line; also on the Qwiic connector |
D1 |
TX | Digital I/O; igeneral-purpose pin; TX |
D0 |
RX | Digital I/O; igeneral-purpose pin; RX |
SCL |
SCL | Analog input and shared I2C SCL line; also on the Qwiic connector |
SDA |
SDA | Analog input and shared I2C SDA line; also on the Qwiic connector |
Headers gedragen zich elektrisch als 5V (level shifter naar 3.3V intern). Onboard LED-matrix is een aparte hardware-component die je via Arduino_LED_Matrix aanstuurt; niet als externe component bedraden. Qwiic-connector deelt SDA/SCL met A4/A5.
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