Gravity Easy Relay Module with DC Barrel Jack 5.5mm / 2.1mm

The DFRobot Gravity Easy Relay module switches DC voltage from 5 to 30 V with up to 2.5 A between a DC socket at the VIN input and a DC socket at the VOUT output. According to the schematic, a MOSFET behind an optocoupler switches the positive pole; there is no mechanical relay. It is controlled via the Gravity connector with 3.3 V or 5 V, for example from Arduino, ESP32 or micro:bit. The included adapters connect power supplies, battery holders, power banks and USB devices such as a USB water pump.

Note: The connection cable can be converted to male pins with a Dupont cable M-M, so that it also fits an Arduino UNO.

Recommended Accessories:

• Dupont Cables M-M 10cm 20 Pieces

Features:

• Switches DC voltage only, 5 V to 30 V, at most 2.5 A, no mains voltage
• Control input via optocoupler, logic 3.3 V to 5.5 V
• Slide switch for NO or NC mode, LED shows the output state
• Switching time 20 µs on, 50 µs off, switching frequency up to 1 kHz
• Gravity 3-pin connector: signal, VCC, GND
• Adapters for barrel plugs, screw terminals and USB included

Application Examples:

• Switching a USB water pump, USB lamp or USB fan on and off
• Switching 12 V LED strips and small loads with a power supply
• Controls for robots, plant watering and smart home

Documentation:

• Wiki DFRobot DFR0643 with Arduino example code
• Schematic (PDF)

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: DFR0643
• Input VIN: 5 V to 30 V DC, 0 A to 2.5 A
• Logic supply: 3.3 V to 5.5 V
• Logic signal: 3.3 V to 5.5 V
• Switching time: 20 µs on, 50 µs off
• Switching frequency: 1 kHz
• VIN and VOUT connectors: DC socket 5.5 × 2.1 mm
• Temperature range according to DFRobot: -55 °C to 150 °C
• Dimensions: 37 × 27 × 15.5 mm
• Weight: 69 g

Scope of Delivery:

• 1× Gravity Easy Relay Module with DC Barrel Jack 5.5mm / 2.1mm
• 1× Gravity sensor cable 3-pin PH2.0 to XH2.54
• 2× Adapter DC plug to screw terminal
• 2× Adapter DC plug to DC plug
• 1× Adapter DC socket to USB-A plug
• 1× Adapter DC socket to USB-A socket