M5Stamp Pico Mate with Pin Headers Documentation
The M5Stamp Pico Mate is a compact, versatile IoT development board that combines the power of the ESP32 Pico D4 microcontroller with a range of convenient features, including Wi-Fi, Bluetooth, and multiple GPIO pins. The Pin Header version of the board provides easy access to the microcontroller's pins, making it ideal for prototyping and development.
The M5Stamp Pico Mate with Pin Headers has the following pinout:
GPIO: 22 pins (including I2C, I2S, SPI, UART, and digital I/O)
Power: 3V3, 5V, and GND
Analog: 2 pins
Cap touch: 5 pins
Microcontroller: ESP32 Pico D4
Processor: Dual-core 32-bit LX6 microprocessor
Clock Speed: Up to 240 MHz
Flash Memory: 4MB
SRAM: 520KB
Wi-Fi: 802.11 b/g/n
Bluetooth: 4.2
### Example 1: Blinking an LED using GPIO
This example demonstrates how to use the M5Stamp Pico Mate to control an LED connected to GPIO Pin 2.
Arduino Code
```c
const int ledPin = 2; // LED connected to GPIO Pin 2
void setup() {
pinMode(ledPin, OUTPUT);
}
void loop() {
digitalWrite(ledPin, HIGH);
delay(1000);
digitalWrite(ledPin, LOW);
delay(1000);
}
```
MicroPython Code
```python
import machine
led = machine.Pin(2, machine.Pin.OUT)
while True:
led.value(1)
utime.sleep(1)
led.value(0)
utime.sleep(1)
```
### Example 2: I2C Communication with an External Sensor
This example demonstrates how to use the M5Stamp Pico Mate to communicate with an external sensor (e.g., a BME280 temperature and humidity sensor) using the I2C protocol.
Arduino Code
```c
#include <Wire.h>
#define BME280_ADDRESS 0x76 // I2C address of the BME280 sensor
void setup() {
Wire.begin();
Serial.begin(115200);
}
void loop() {
Wire.beginTransmission(BME280_ADDRESS);
Wire.write(0x00); // Register address for temperature data
Wire.endTransmission();
Wire.requestFrom(BME280_ADDRESS, 2); // Read 2 bytes of temperature data
int tempData = Wire.read() << 8 | Wire.read();
float temperature = tempData / 100.0;
Serial.print("Temperature: ");
Serial.print(temperature);
Serial.println("C");
delay(1000);
}
```
MicroPython Code
```python
import machine
import utime
i2c = machine.I2C(scl=machine.Pin(22), sda=machine.Pin(21)) # I2C pins
bme280 = i2c.scan()[0] # Find the I2C address of the BME280 sensor
while True:
i2c.writeto(bme280, b'x00') # Register address for temperature data
data = i2c.readfrom(bme280, 2) # Read 2 bytes of temperature data
tempData = (data[0] << 8) | data[1]
temperature = tempData / 100.0
print("Temperature: {:.2f}C".format(temperature))
utime.sleep(1)
```
These examples demonstrate the versatility of the M5Stamp Pico Mate with Pin Headers and its ability to interface with a wide range of sensors and devices.
