The Onion Omega 2 and Onion Omega 1 I2C Shield is a general-purpose I2C Interface Adapter for the Onion Omega. This adapter provides a Micro USB Interface for power and programming the Onion Omega. A on-board level-shifter is included to convert the Onion Omega I2C Interface to our 5V standard. The Onion Omega I2C adapter allows the Onion Omega to connect to hundreds of sensors, relay controllers, current monitoring devices, a growing array of FET drivers, and much more.
What is the I2C Interface?
The supplier of plug and play modular hardware using the I2C Interface connector standard. It allows you to chain together several devices on the I2C bus, and communicate to each device individually at high speed (subject to the limitations of I2C). The I2C Interface uses a standard 4-Pin I2C Input and I2C Output connector. These devices communicate on the power of 5V I2C data and provide 5V DC power through this connector. The advanced embedded devices use standard I2C communications for all data transport, which is supported by nearly every microcontroller in production today. The I2C Interface is strictly a 5V standard, which is ideal for transport across longer cables. The device Package always includes a 6? (152mm) 4-conductor I2C cable. The I2C based Mini Modules always include a 3? (76mm) 4-conductor I2C cable. Cables and connectors are available separately for designers who would like to include their own I2C Interface into their designs.