DFROBOT Gravity I2C to Dual UART Module

The DFROBOT Gravity: I2C to Dual UART Module is an essential expansion solution for developers and hobbyists facing a shortage of hardware serial ports. Most standard controller boards, such as Arduino, Raspberry Pi, and micro:bit, feature only one or two UARTs, with one typically reserved for programming or debugging. This module provides a perfect remedy, allowing you to expand your system's connectivity seamlessly.

Capable of supporting a maximum communication rate of 2Mbps and data transmission rates of up to 1Mbps, it ensures swift and reliable data flow. Each sub-UART features an independent 256-byte FIFO hardware buffer for both transmitting and receiving, preventing data loss during intensive operations. Furthermore, you can connect up to four of these modules to a single controller board to expand your setup with up to eight hardware serial ports.

The baud rate, word length, and check format of every sub-UART can be set independently, offering exceptional flexibility for complex projects. Utilising the Gravity I2C 4-pin communication port, it integrates effortlessly into existing Gravity ecosystems. Whether you are connecting IoT modules, ultrasonic ranging sensors, GPS modules, speech synthesis modules, or handling strict timing requirements for IR receivers and WS2818 RGB projects, this module delivers robust performance across a wide operating temperature range.

Specifications

• Communication Port: Gravity I2C 4-pin
• Maximum Communication Rate: 2Mbps
• Data Transmission Rate: Up to 1Mbps
• FIFO Hardware Buffer: 256-byte per sub-UART (transmit and receive)
• Operating Voltage: 3.3V to 5.5V
• Operating Current: < 3mA
• Operating Temperature: -40°C to 85°C
• Module Dimensions: 32.5 x 27mm