Does controlling door and cabinet access with the power of Electromagnetism interest you? Excellent! In effect, this latch / lock solenoid is an electronic lock. When powered with 12VDC source, the latch is pulled in, allowing movement. Without power, the latch is extended, blocking movement and your secret drawer is safe and secure.
This Solenoid Latch comes with a mounting bracket which can be removed with two screws. Once removed the solenoid can be rotated 180 and remounted. Paired with a relay you can easily have a low voltage system control this and other higher voltage devices.
To control the latching solenoid from a microcontroller, you'll need to add a flyback diode and a MOSFET/Relay. For more information, check out the application circuit in our diodes tutorial. The solenoid will simply be added as a load on the MOSFET or relay of your choice.
Looking for inspiration for the latching solenoid? Try using it with a fingerprint scanner or RFID reader to lock an enclosure. Check out this Enginursday: Qwiic Escape Room for an example.
This skill concerns mechanical and robotics knowledge. You may need to know how mechanical parts interact, how motors work, or how to use motor drivers and controllers.
Skill Level: Rookie - You will be required to know some basics about motors, basic motor drivers and how simple robotic motion can be accomplished.
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If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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I bought this for a high school project with Arduino for a safe because I liked the idea of a solenoid that releases the door for you when energized and still re-latches when de-energized. I tested the solenoid and it works perfectly, it does get warm when energized for prolonged periods of time but that’s just because it pulls 0.6a when energized. I am very satisfied with this and I will most certainly buy more of these if I ever need more.
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