Simple Light Detector Alarm with solar sensor
This is Simple Solar light alarm circuit with the special edition, that improve this circuit whole new to higher efficiency. use solar cell instead of LDR Read more
Meters & Detectors
Food & Water Salinity Tester Meter circuit
SEE a simple salinometer or salinity tester in food and water. Good for health. Using LM324 and few parts and LED display easily use, with 9V batts Read more
3 idea Polarity & Car Electrical Probe tester circuit
See 3 ideas of 555 DC polarity probe tester circuit. Check Car Electrical in easy, find open circuit, automotive short circuit, loose connection. Learn more Read more
Digital multimeter circuit using ICL7107
his is Digital multimeter circuit using ICL7107. dc digital meter circuit to smart full function, measure DCV, ACV, DC Amp meter, AC Amp meter, Ohms […] Read more
8 Light sensor alarm or Sensitive Sound Generator
These are four light sensor alarm circuits, when be become dark, or Light sensitive switch.Use part is important light sensor LDR light dependent resistor […] Read more