Video showing the Testing of TSOP1738 with 38 kHz Frequency The TSOP17XX series of ICs are infrared sensor devices designed for sensing infrared frequencies only with a specific range of […]
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Automatic Generator Choke Actuator Circuit
The post explains a simple automatic generator choke actuator circuit using a straightforward delay OFF timer circuit and a solenoid device. The circuit was requested by Mr. Bob Perry. Technical […]
Footstep Activated LED Trouser Light Circuit
The post explains how to transform your ordinary trousers into a chasing LED lit trousers which produces an shooting LED light chasing effect in response to your footstep movement or thumping. […]
Simple 3.7 V Li-Ion Battery Charger Circuit
In this article we study a simple 3.7V li-ion battery charger circuit with auto-cut off, which can be charged from your computer USB port or any other 5 V regulated […]
Vehicle Speed Limit Alarm Circuit
In our previous articles we have learned comprehensively regarding the ICs LM2907/LM2917 which are fundamentally frequency to voltage converter ICs, and are ideally applicable in all such relevant fields. Here […]
Accurate Speedometer Circuit
Here we’ll see how a simple yet accurate analogue speedometer circuit can be constructed at home using just a single IC and a few external passive components. The speedometer can […]