This circuit produces a beep and/or lights up a LED if a person hits the door-handle from outside. The alarm system will signal until the circuit might be switched-off. The […]
How to Build a Automatic PWM Door Open/Close Controller Circuit
The publish reveals a very simple PWM controlled automatic turnstile or door circuit presenting an automatic open/close action via a photo-interrupter stage. A straightforward PWM based motor control circuit with […]
How to Make a Refrigerator Door Open Alarm Circuit
This shown circuit alarm updates you after some time at any time your refrigerator door is left open. This fridge door open alarm circuit turns into easy to carry, simply […]
IR Remote Controlled Door Lock Circuit
On this page we understand more about an easy infrared based remote control door lock circuit which you can use for securely locking doors by way of unique foolproof IR […]