1:data too long to fit in transmit buffer. false will send a restart, keeping the connection active.īyte, which indicates the status of the transmission: true will send a stop message, releasing the bus after transmission. The 7-bit address of the device to transmit to false will continually send a restart after the request, keeping the connection active.īyte : the number of bytes returned from the slave deviceīegin a transmission to the I2C slave device with the given address. true will send a stop message after the request, releasing the bus. Wire.requestFrom(address, quantity, stop)Īddress: the 7-bit address of the device to request bytes from Used by the master to request bytes from a slave device. There are no address only you can select scl gpio, sda gpio and frequency This should normally be called only once.Īddress: the 7-bit slave address (optional) if not specified, join the bus as a master. Initiate the Wire library and join the I2C bus as a master or slave.
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