Inter-Integrated Circuit (I2C) Protocol - Arduino Docs
The I2C protocol involves using two lines to send and receive data: a serial clock pin (SCL) that the Arduino Controller board pulses at a regular interval, and a serial data pin (SDA) over which data is sent between the two devices.
Connecting Two Nano Every Boards Through I2C - Arduino Docs
Jul 17, 2024 · The I2C protocol involves using two lines to send and receive data: a serial clock pin (SCL) where the Arduino writer board pulses at a regular interval, and a serial data pin (SDA) over which data is sent between the two devices.
Wire - Arduino Docs
Nov 20, 2024 · This library allows you to communicate with I2C devices, a feature that is present on all Arduino boards. I2C is a very common protocol, primarly used for reading/sending data to/from external I2C components. To learn more, visit this article for Arduino & I2C.
Arduino UNO R4 WiFi User Manual
I2C lets you connect multiple I2C compatible devices in series using only two pins. The controller will send out information through the I2C bus to a 7-bit address, meaning that the technical limit of I2C devices on a single line is 128.
I2CScanner - Arduino Docs
Nov 29, 2018 · The I2CScanner Library implements a scanner to locate I2C devices, and determine if a device is connected.
MCP23017 Port Expander - Arduino Docs
Apr 14, 2023 · Arduino library for MCP23017 I2C I/O port expander. This library implements functions like digitalWrite/digitalRead that interface directly with the port expander, allowing the …
Arduino GIGA R1 User Manual
It features support for display connectors, USB-host, an Audio Jack, an Arducam connector, a CAN bus, 4 UART Serial Ports, 2 I2C buses, dedicated DAC Pins, and much, much more. This article is a collection of resources and guides to make use …
MCP23017 - Arduino Docs
Feb 19, 2023 · MCP23017 I2C Port expander library. Support all MCP23017 features, including interrupts. Allows full control over the chip registers. Go to repository. Compatibility. Releases. This library is compatible with all architectures so you should be able to use it on all the Arduino boards. ON THIS PAGE.
Arduino Nano ESP32 User Manual
Second SPI Port (HSPI) The Nano ESP32 has a second SPI port (HSPI). To use it, we need to create an object using SPIClass, and initialize communication on a specific set of pins. The HSPI port's default pins are: GPIO14 (SCK), GPIO12 (CIPO), GPIO13 (COPI), GPIO15 (CS).
Arduino UNO R4 Minima User Manual | Arduino Documentation
Learn more about the I2C protocol in our I2C Protocol Guide. USB Serial & UART. The UNO R4 Minima board features two separate hardware serial ports. One port is exposed via USB-C®, and ; One is exposed via RX/TX pins.