This circuit will allow the user to lock his car ignition using his phone Bluetooth, meaning the ignition can be locked/unlocked only through a specific code from the user’s cellphone […]
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Cheap Cellphone Controlled Water Pump for Farmers
The post presents a cheap cellphone remote controlled water pump circuit which allows farmers (user) to switch ON their field water pump without practically visiting the spot, thus saving precious […]
3 Sound Activated Switch Circuits Explained
The post details 3 simple sound activated relay switch circuits which can used as a module for any system that might be assigned to trigger by detecting some kind of […]
PWM Motor Soft Start Circuit to Prevent High Consumption during Power Switch ON
The post explains an effective PWM motor soft start circuit which can be used for enabling heavy motors with a soft start and thus prevent the equipment from drawing dangerous […]
Arduino Mains Failure Battery Backup Circuit
The article explains a simple mains failure backup circuit for providing Arduino boards an uninterruptible supply during such situations. The idea was requested by Mr. Fredrik. Technical Specifications This blog […]
Cellphone Controlled Car Starter Circuit
The post presents a simple cellphone triggered remote control circuit that can be applied as a cellphone operated remote car starter. The unit would cost less than $20 to build. […]