Product description: Gravity - RS485 to UART signal converter - DFRobot DFR0845
Module converting transmission signal from RS485 protocol to UART serial interface. It has a built-in TDH541S485H chip. It is compatible with most controllers, including Arduino. It features high transmission speed (up to 1 Mbps), stable and reliable operation, as well as high performance and safety, which is ensured by isolation of power supply and TVS lines. The converter can be used with various industrial sensors, control devices or applications that require conversion of RS485 signal to UART interface.
Product is compatible with Arduino!
On manufacturer website user guide is available. It contains description of elements on the board, connection instructions or sample program code. Check it out!
RS485 to UART signal converter comes with dedicated cable with Gravity connector.
Gravity - RS485 to UART converter - DFRobot DFR0845.
Special features of the converter
- Equipped with a screw connector for easy wiring
- Output power is 12 V, and the maximum output current is about 160 mA, which makes the module convenient for testing RS485 device with low load
- Compatible with controllers operating at 3.3 V and 5 V
- Built-in terminal matching resistance of 120 Ω, which can be connected and disconnected by the control switch
- Supports an external 12 V power source
Set contents
- Gravity - RS485 to UART signal converter - DFRobot DFR0845
- Dedicated connection cable with Gravity connector
Pinout description
- Gravity connector
- T - transmit UART-TX data
- R - receiving data UART-RX
- "-" - chip ground
- "+" - system power supply
- RS485 screw connector
- 12V - 12 V / 2 W output
- GND - isolated circuit ground
- A - terminal of RS485 A signal
- B - terminal of RS485 B signal
- Screw connector 12V-IN
- 12V - external power supply input 12 V
- GND - external ground
Equipped with screw connector and Gravity connector.
Technical specification of the signal converter
- Built-in circuit: TDH541S485H
- Supply voltage range: from 3.3 V to 5 V
- Maximum transmission speed: up to 1 Mbps
- Maximum output power: up to 2 W at 12 V (output current: approximately 160 mA)
- Protection: Protective circuitry, power isolation, TVS
- Bus electrostatic protection: up to 15 kV
- 1/8 of the unit load, bus capacity up to 256 nodes
- Connector: Gravity, screw connection
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