Gravity: UART Fiber Optic Transceiver Module

Tired of using thick and rigid shielded twisted pairs for remote signal transmission? And sick of reducing the baud rate repeatedly just for stability? DFRobot's Gravity: UART Fiber Optic Transceiver Module is here to solve these headaches! This module offers complete electrical isolation, effectively preventing electromagnetic interference. It can run at a high speed of 2000000 baud over a distance of up to 10km. It also features lightning protection and can share cable trunking with high - power lines. You can use it with a passive optical splitter for one - to - many star networking. Two transceiver modules cost only half as much as shielded twisted pairs, providing long - distance, interference - free fiber - optic communication at a great value. The module has a UART interface for connection to MCU or sensors, along with multiple LED indicators for power, fiber disconnection, signal transmission, and reception. Note that the SD LED may not detect all fiber disconnections or unstable transmissions. Use tools like a red pen or an optical power meter to check for errors when connection issues arise. With a supply voltage of 3.3V - 5V, a maximum speed of 2000000 baud, and a communication distance of 10km, it's a reliable choice for fiber - optic communication and star networking applications.

Using this DFRobot Gravity UART Fiber Optic Transceiver Module is easy. First, connect the Gravity UART interface to your MCU or sensor. Then, link the SC fiber optic interface to the corresponding fiber optic cable. When you power it on, the PWR LED will light up, indicating that it's getting power. During normal operation, the TX LED will blink when transmitting a signal, and the RX LED will blink when receiving one. The SD LED is there to give you a heads - up if there's a fiber disconnection, but keep in mind it might not catch all issues. So, if you experience connection problems, grab a red pen or an optical power meter to double - check. In terms of maintenance, make sure to keep the module in an environment with an operating temperature between 0°C and 70°C. Also, ensure the supply voltage stays within 3.3V - 5V. This will help keep the module running smoothly and extend its lifespan. And remember, this module is great for long - distance fiber - optic communication and one - to - many star networking, so use it to its full potential in your projects.