In this post I have explained how to make a simple railway signal lamp which can be used by the guards for providing a handheld signalling to the various trains with the many specified signalling modes. The idea was requested by Mr. Bala. Technical Specifications I need a project design for railway led signalling light . […]
Sensors and Detectors
How to Connect a TSOP1738 IR Sensor
TSOP17XX series devices are advanced infrared sensors having a specified center frequency of operation which makes their detection extremely reliable and foolproof. In this post I have explained how to connect a TSOP series infrared sensor and use it for a specified IR remote control operations. TSOP IR Sensor Specifications A TSOP series of IR […]
3 Sound Activated Switch Circuits Explained
In this post I have explained 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 sound pressure level. Or simply applications such as a voice activated alarm security circuit. 1) Circuit Objective Utilizing this basic sound activated […]
No Load Detector and Cut-off Circuit for Inverters
In this post I have explained a relay cut-off circuit which may be included in inverters to ensures that under a no load at the output the condition is quickly detected and the supply cut off, preventing the inverter from operating unnecessarily. The idea was requested by Mr. Rajath. Technical Specifications I need to adopt […]
Industrial Valve Switching Detector Indicator Circuit
In this post I have explained a circuit idea which can be used for identifying the switching pattern of set of valves from a remote location, using just two wire from the valve sets to the indicator circuit at the distant location. The idea was requested by Mr. Andreas. Technical Specifications Here is another circuit […]
How to Make a GHz Microwave Radar Security Alarm Circuit
In this post I have explained a GHz microwave radar security alarm circuit which is designed to detect an intruder within the critical zone only while it’s moving, static objects produce no effect for the sensor. Using Doppler Sensor KMY24 In the previous article I have explained about a microwave Doppler radar sensor module KMY […]
