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“This instructable shows how to create a time switching battery powered solar charged circuit, which is used to power an Arduino Uno and some peripherals (sensors, communication modules, etc.). If you want to design a remote data logger, power supply …
“The Joule Thief circuit is an excellent entrée for the novice electronic experimenter and has been reproduced countless times, indeed a Google search yields 245000 hits! By far the most frequently encountered circuit is that shown in Step 1 below …
“Small, low power signals are all around us. Often these signals are at such low power that we can’t use the raw signal itself without boosting that signal first. Once boosted, we can collect usable data about what we …
“Have you ever wanted to broadcast your own radio station within your neighborhood? Ever get curious on where people get those “Surveillance Bugs” from spy and action movies? This small and simple FM transmitter is the toy that geeks have …
“The ability to understand and control LED matrices is an important skill for anyone who hopes to be well versed in electronics. The understanding of shift registers and row scanning techniques necessary for such feats will prove useful in countless …
“This is an LM741 op-amp built on a breadboard. The LM741 op-amp is an 8 pin IC chip, but I thought it would be fun to build my own on a breadboard. There are four sections to the chip, it …
“The circuit what you are about to see is a smart battery charger based on ATMEGA8A with auto cut off.Different parameters are shown via a LCD during different charge states.Also the circuit will make sound via a buzzer …
“Water Level Indication Circuit consists of breadboard, NPN transistors, LEDs, resistors, 9V battery and a tank made from transparent disposable 500 ml drinking water bottle.”
“AN6877 is linear AF level meter IC produced by Panasonic and it is commonly found on many audio equipment. This chip is no longer manufactured by Panasonic and finding replacement chip for AN6877 is also quiet difficult. The circuit described …
“Today I am showing you how to make a very simple joule thief. A joule thief has many applications, the best gadget that I made with was a “Water Powered Lamp”, soon I’m going to post on a guide …
“There are many Instructables and videos on the internet showing how to build a musical floppy drive, but I have never seen anything about building a floppy drive piano. Because I like playing the piano and building electronics, I figured …
Today we will build a circuit to create a very simple FM transmitter. This circuit like others is well publicized on the Internet and presents a very simple configuration since it only uses an NPN Transistor. Note that this circuit …