Gravity: CAN to TTL Communication Module with SLCAN Protocol

DFRobotSKU: TEL0150
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This CAN-to-UART and USB 1.0 communication module is compatible with both 3.3V and 5V. It supports the CAN 2.0 protocol and incorporates the SLCAN command, eliminating the need for you to concern yourself with the complexities of the CAN protocol. By simply sending AT commands, you can engage in CAN data transmission and configure its functionalities.

This module provides a UART interface and integrates a USB interface, eliminating the need for cumbersome conversions between USB and UART during data debugging. Connecting it to your computer via USB allows for convenient data debugging through a serial assistant. This feature proves particularly handy when deploying the module on-site for debugging purposes.

The module offers a configurable CAN baud rate range of 25K–1 Mbps, supporting a maximum rate of 2 milliseconds per transmission and ensuring the delivery of 500 data packets per second without any loss. Its stable and reliable communication capabilities significantly reduce the likelihood of errors in your project and streamline the project debugging process.

Additionally, the module is equipped with data communication indicators and a 120Ω resistor jumper. These design details serve to enhance the efficiency of your project development and validation.

Would you like to learn about the differences between Modbus and CAN bus? Read this blog to gain further insight.

Functional Diagram

Connection Diagram of Gravity: CAN to TTL Communication Module and ESP32-E


  • Supports CAN 2.0.
  • Incorporates SLCAN protocol commands, ensuring user-friendly operation with no need to focus on CAN protocol intricacies.
  • Enables CAN baud rate configuration ranging from 25K to 1Mbps, guaranteeing the delivery of 500 data packets per second without any loss.
  • Integrates a USB interface, eliminating the requirement for additional USB-to-UART connections and providing convenient usability.
  • Compatible with both 3.3V and 5V voltage levels and power supply.
  • Configuration parameters can be saved even when power is disconnected


  • Operating voltage: 3.3V - 5V
  • Operating current: 65mA
  • AT command protocol: SLCAN
  • Compatible with CAN 2.0 protocol.
  • USB interface: USB 1.0
  • UART interface voltage levels: 3.3V, 5V
  • UART baud rate: 115200Bps (default configuration)
  • Optional CAN communication baud rates:
    500kbits/s (default configuration)
  • CAN communication jumper: 1x
  • CAN communication indicator: 1x
  • Programming languages: C++, Arduino C, serial assistant
  • Solder material: Environmentally friendly lead-free solder
  • Product dimensions (excluding packaging): 37mm x 47mm x 11.6mm (at the highest point)


Package Contents

  • 1x CAN TO UART/USB Module
  • 1x Gravity-4P I2C/UART Sensor Cable

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