An FM transmitter circuit is a high frequency wireless device which is able to transmit voice signals into atmosphere so that it can be received by a corresponding FM receiver circuit for reproducing the voice signals in a loudspeaker. Here we’ll discuss how to build small FM transmitter circuits using 10 different methods, one that […]
Explained
Parallel Battery Charger Circuits Explained
In this post I have explained two methods of connecting batteries in parallel. The first one below deals with changeover circuit using SPDT switches to charge multiple batteries individually or collectively. These may be connected in parallel using a single battery charger and through a manual SPDT changeover switch bank. The seconds design talks about […]
ATmega32, Pinouts Explained
The Atmel AVR Atmega32 is a low power CMOS based microcontroller chip manufactured on the AVR advanced RISC architecture. It is featured for carrying out technologically powerful instructions within each of its clock cycles. The chip is also equipped with the capability of achieving throughputs rated at 1MIPS per MHz enabling the system manager to enforce […]
4 Automatic Staircase Lamp Controller Circuits Explained
In this post I have explained 4 innovative automatic staircase lamp controller circuits which will automatically switch ON and OFF the staircase lamps in response to an external trigger. We will discuss 4 concepts here, which are as follows: 1) Automatic Staircase Lamp Circuit using PIR The first automatic staircase light circuit describes a simple […]
2 Mosquito Swatter Bat Circuit Diagrams Explained
Mosquitoes are a big menace to humankind and these are present in every corner of the world. A cool way of avenging yourself could by eliminating these “devils” through electrocution. A mosquito swatter bat is designed just for this. I have explained how to build its electronic circuitry. The idea was requested by Mr. kathiravan d. […]
2 Digital Potentiometer Circuits Explained
In this post I have explained a 2 simple, single chip digital potentiometer circuits which can be controlled through a single pushbutton, a dual pushbutton (up/down) or even through external digital (CMOS/TTL) input triggers. 1) About DS1869 Dallastat TM is a rheostat or potentiometer. This unit delivers 64 conceivable consistent tap outputs over the over-all […]