Code samples in the reference are released into the public domain. It is easily found in the market and can be a cheaper alternative if the RDS/RBDS function is not needed. The text of the Arduino reference is licensed under aĬreative Commons Attribution-ShareAlike 3.0 License. The SI4702 Except for the SDR/RDBS feature, the SI4702 has all the functions available in the SI4703. shift the value one bit to the right), yielding an address between 0 and 127.Ĭorrections, suggestions, and new documentation should be posted to the Forum.

begin This function is used to start the peripheral using the default configuration. I2C Common API Here are the common functions used for master and slave modes. If you have a datasheet or sample code that uses 8 bit address, you'll want to drop the low bit (i.e. The ESP32 I2C library is based on the Arduino Wire Library and implements a few more APIs, described in this documentation. The Wire library uses 7 bit addresses throughout. 7 bits identify the device, and the eighth bit determines if it's being written to or read from. There are both 7- and 8-bit versions of I2C addresses. Because of this, send() and receive() have been replaced with read() and write(). On the Arduino Mega, SDA is digital pin 20 and SCL is 21.Īs of Arduino 1.0, the library inherits from the Stream functions, making it consistent with other read/write libraries. On most Arduino boards, SDA (data line) is on analog input pin 4, and SCL (clock line) is on analog input pin 5.

This library allows you to communicate with I2C / TWI devices. Reference Language | Libraries | Comparison | Changes

Wire Arduino Library github