Battery is very important in many electronic projects, but however battery voltage goes down slowly and so device may stop working properly. Therefore, we designed this simple 6V to 12V Battery Monitor Circuit using the CMOS 7555 IC to solve this problem. The circuit uses a 7555 timer IC and an LED to indicate the […]
Mini Projects
Switch Mode LED Driver Circuit using Transistors
Nowadays, LED is used everywhere, its used in display, in indicator and for decoration purpose also, but LED needs proper current, so if we connect LED direct to battery then it may get damage. So in this post we have designed a Switch Mode LED Driver Circuit using Transistors and this circuit is simple as […]
LM3909 IC Based Square Wave Generator Circuit
Electronic projects often need a signal source and this signal can be a pulse or square wave; therefore, a frequency generator is useful for these type of signal source. Here, we have used LM3909 IC which is simple with low power, it works well on small voltage and also the circuit is cheap and easy. […]
One LED Low Voltage Flasher Circuit using IC LM3909
A low voltage indicator is essential for battery operated circuits because the battery can discharge at any time; therefore, a simple indicator helps monitor the battery voltage. Therefore, this One LED Low Voltage Flasher Circuit using the LM3909 IC uses only one LED, requires a minimal number of components and operates at a very low […]
Simple 3.6V High Power LED Torch Circuit
To begin with, this article is about Simple 3.6V High Power LED Torch Circuit, it uses a 3.6V battery and is easy to build and the circuit is very easy to understand. The circuit uses only LEDs, one resistor, a switch and a battery; so beginners can also try this circuit and moreover, this circuit […]
Simple Over-Temperature Warning Indicator Circuit
This Simple Over-Temperature Warning Indicator Circuit uses an LED to indicate excessive temperature, as it uses only a few easily available components, making the circuit simple, low cost, and easy to build. The circuit turns ON an LED when temperature rises above a set level like 45°C – 55°C and therefore, it is useful for […]