Solenoid lock needs 9v 12v to operate and raspberry pi gpio pins can supply only 3 3v so a 12v external power source is used to trigger the lock with the help of a relay.
Solenoid door lock circuit.
The circuit diagram for raspberry pi solenoid door lock is very simple as you only need to connect the solenoid door lock to raspberry pi.
Only 4 left in stock order soon.
The solenoid door lock will remain open until the hall effect sensor output is high.
Get it as soon as thu sep 3.
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Connect your diode between the two solenoid cables this will prevent current discharging back through the circuit when the solenoid coil discharges.
Solenoid electric lock dc 12v mini electric control lock tongue latch assembly solenoid for file cabinet drawer door 4 5 out of 5 stars 2 more buying choices 31 39 1 new offer.