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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
flood alert systems
The DC TT Geared Motor 6V 160RPM L Shape Metal Shaft is a practical motion hardware from Circuitrocks for students
6-20V unregulated external power supply (pin 30)
DFRobot Relay Module V3.1 - Arduino-Compatible 5V Relay standard servo Check the pin labels onSimple 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
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