46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
#include <Adafruit_I2CDevice.h>
|
|
|
|
#define I2C_ADDRESS 0x60
|
|
Adafruit_I2CDevice i2c_dev = Adafruit_I2CDevice(I2C_ADDRESS);
|
|
|
|
void setup() {
|
|
while (!Serial) {
|
|
delay(10);
|
|
}
|
|
Serial.begin(115200);
|
|
Serial.println("I2C device read and write test");
|
|
|
|
if (!i2c_dev.begin()) {
|
|
Serial.print("Did not find device at 0x");
|
|
Serial.println(i2c_dev.address(), HEX);
|
|
while (1)
|
|
;
|
|
}
|
|
Serial.print("Device found on address 0x");
|
|
Serial.println(i2c_dev.address(), HEX);
|
|
|
|
uint8_t buffer[32];
|
|
// Try to read 32 bytes
|
|
i2c_dev.read(buffer, 32);
|
|
Serial.print("Read: ");
|
|
for (uint8_t i = 0; i < 32; i++) {
|
|
Serial.print("0x");
|
|
Serial.print(buffer[i], HEX);
|
|
Serial.print(", ");
|
|
}
|
|
Serial.println();
|
|
|
|
// read a register by writing first, then reading
|
|
buffer[0] = 0x0C; // we'll reuse the same buffer
|
|
i2c_dev.write_then_read(buffer, 1, buffer, 2, false);
|
|
Serial.print("Write then Read: ");
|
|
for (uint8_t i = 0; i < 2; i++) {
|
|
Serial.print("0x");
|
|
Serial.print(buffer[i], HEX);
|
|
Serial.print(", ");
|
|
}
|
|
Serial.println();
|
|
}
|
|
|
|
void loop() {}
|