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