Here is the circuit of an ultra sensitive IR receiver that can be used to switch on various AC devices through an IR transmitter. It uses the Photo transistor L14F1 to detect IR signals from the ...

This circuit is low cost and can be constructed easily. By using this circuit, we can control any house hold appliance with the help of remote. This circuit is low cost and can be constructed easily.

This MEMS-based on/off switch is triggered by impinging IR photons, and remains in a zero-power quiescent state until that event takes place. Even the minute amount of current needed in slow, ...