Communication
Embedded electronics is all about interlinking circuits (processors or other integrated circuits) to create a symbiotic system. In order for those individual circuits to swap their information, they must share a common communication protocol. Hundreds of communication protocols have been defined to achieve this data exchange, and, in general, each can be separated into one of two categories: parallel or serial. Serial UARTs, SPI, and I2C are used with many products in the SparkFun catalog to pass data. They can be used with a serial terminal to help troubleshoot issues or display data. However, there are other methods of communication some of which include IR, RS-232, RS-485, CAN, MIDI, and DMX. Check out the tutorials below to start relaying data between your devices!
2D Barcode Scanner Breakout Hookup Guide
May 27, 2021
Level Shifter - 8 Channel (TXS0108E) Hookup Guide
May 19, 2022
Introduction to MQTT
November 7, 2018
1W LoRa MicroMod Function Board Hookup Guide
November 11, 2021
Bi-Directional Logic Level Converter Hookup Guide
October 25, 2013
Cryptographic Co-Processor ATECC508A (Qwiic) Hookup Guide
October 17, 2019
Raspberry Pi SPI and I2C Tutorial
October 29, 2015
Industrial Fiber Optics Hookup Guide
January 20, 2021
Adding More SERCOM Ports for SAMD Boards
February 4, 2019
Qwiic Differential I2C Bus Extender (PCA9615) Hookup Guide
May 31, 2018
AST-CAN485 Hookup Guide
March 1, 2018
RFM69HCW Hookup Guide
April 29, 2016
Boss Alarm
March 30, 2016
CAN-BUS Shield Hookup Guide
October 8, 2015
Serial Communication
December 18, 2012
Getting Started with OBD-II
October 8, 2015
IR Communication
February 7, 2013
Binary
February 7, 2013
Si4703 FM Radio Receiver Hookup Guide
August 13, 2015
SparkFun USB UART Breakout (CY7C65213) Hookup Guide
February 2, 2017
SparkFun USB to Serial UART Boards Hookup Guide
February 18, 2016
Arduino Wireless Communication via the Electric Imp
April 8, 2014
Old Tutorials
Looking for the old, archived tutorials? Head on over to the
archived tutorials on the main
SparkFun site.
Please be aware that the tutorials you find there are no longer
actively maintained.