The post discusses a simple food warmer lamp timer circuit for restaurants and hotels which can be used for automatically switching OFF the lamps after a predetermined time whenever the […]
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Automatic Inverter Fan Switch ON while Charging and Inverting Modes
The post explains a simple method of automatically switching ON an inverter fan whenever the unit is operating in the charging mode or inverter mode, in order to ensure optimum […]
“WELCOME” LED Display Circuit
The post explains how to make a chasing “WELCOME” display circuit sign board, which illuminates each alphabet sequentially until all the 7 alphabets are lit and then the whole display […]
GSM Fire SMS Alert Project
In this article we are going to construct a GSM fire alert circuit system using Arduino and DHT11 sensor, which will alert the user via text message (SMS), regarding a […]
Bluetooth Motor Controller Circuit
The post explains how to use Bluetooth technology for transmitting PWM wirelessly, the circuit application could be used for controlling various appliances such as motors, lights, RC gadgets etc using […]
SPDT Relay Switch Circuit using Triac
An efficient solid state single pole double throw or SPDT switch can be built using triacs for replacing a mechanical SPDT. The post details a simple solid state triac SPDT […]