The write up explains the pinout and working details of the LCD module “Arduino LCD KeyPad Shield (SKU: DFR0009)” which is specifically manufactured for offering a quick plug-in compatibility for […]
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Smart Emergency Lamp Circuit with Maximum Features
In this post we learn about a simple yet sophisticated automatic emergency light circuit which can be considered “smart” due to the involved advanced features and an inexpensive design. The […]
Borewell Motor Pump Starter Controller Circuit
The post explains a circuit which controls a submersible borewell motor by operating its red (Start) and green (Stop) buttons, in response to low level, high level water conditions, and […]
Emergency Incubator Heater Circuit with Battery Charger
The post discusses a 12V power supply with battery charger circuit which can be implemented as an uninterruptible emergency heating system for incubator chambers. The idea was requested by Mr. […]
Rechargeable LED Lantern Circuit Using Dynamo
In this post we study a simple rechargeable LED lantern circuit which features battery charging option from a dynamo as well as from a mains 220V source. The idea was […]
Solar, Wind, Hybrid Battery Charger Circuits
The article explains a dual input hybrid solar and wind battery charger circuit using cheap and ordinary components. The idea was requested by one of the interested members of this […]