DFRobot Relay Module V3.1 - Arduino-Compatible 5V Relay standard servo 3V boards like ESP32

3V boards like ESP32

Check the pin labels on the PIR Motion Sensor HC SR505 and match them to your controller voltage

and proof-of-concept projects when matched with the right support parts

high power View product Pololu High-Power Motor Driver 18v25 CS - Current-Sensing H-Bridge higher-current motors high power View product Pololu High-Power Motor Driver 24v23 CS - Current-Sensing H-Bridge higher-current motors high power View product Technical specifications

without any interruption on the output so its fine for use as a "UPS" (un-interruptable power supply) for a low-current draw device

DFRobot Relay Module V3.1 - Arduino-Compatible 5V Relay standard servo 3V boards like ESP32Simple Load Switching for Arduino, ESP32, and Automation Builds The DFRobot Relay Module V3. 1 Arduino Compatible 5V Relay is a practical relay module from DFRobot for students, makers, and repair friendly builds. It fits well in projects that need switching external loads, while keeping setup straightforward for testing and prototype work. Compared with generic parts, this product stands out through details such as 5V. That makes it a solid choice