I2C

Module: arduino::i2c

I2C/TWI master helpers for 7-bit slave addresses.

Functions

macro void begin_transmission(char addr);
macro void write_byte(char b);
macro void write_bytes(char[] data);
macro char end_transmission();
macro char request_from(char addr, char quantity);
macro char available();
macro char read_byte();
macro bool scan(char addr);

end_transmission() returns 0 on success, 2 on address NACK, and 3 on data NACK.

Example

import arduino::i2c;

if (i2c::scan(0x3C)) {
    // device found
}