The car lamp failure indicator circuit detailed below, includes just solitary reed-relay, one particular LED and a single resistor. It delivers a cheaper caution method. A LED is fitted in […]
Universal LED Bar Graph Indicator Circuit
This universal pointer or LED bar graph indicator circuit can be used with any kind of input sensor that delivers a exponentially varying voltage. This can be for example from […]
Discotheque Music Level Indicator Circuit
This is a novel music level indicator, ideally suitable for using in a place like discotheque. This indicator is made of eight columns of eight LEDs are being placed at […]
Coffee Temperature Indicator Circuit
In this post we will build a circuit that can be used for identifying and alerting the user regarding the right temperature of the coffee. The LED indicators will indicator […]
Office Bell with IN/OUT Indicator Circuit
This office bell with IN/OUT indicator circuit utilizes three 7-segment, common anode displays rather than a couple of LEDs for the in/out indicator as is done commonly. As soon as […]
Battery Status Indicator Circuit using two Transistors only
Often a backyard electronic system could become imperfect as a result of a perishing battery. If the battery voltage is no more than 9V for a 12V operated system, the […]