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“I recently built the Bike Tyre Speaker and it really needed a little LM386 mono amp to boost the sound, as I wanted to ‘Play It Loud’! My fascination with electronics started from dissecting old electrical equipment just to see …
National Semiconductor was an American semiconductor manufacturer which specialized in analog devices and subsystems, formerly with headquarters in Santa Clara, California, United States. The company produced power management integrated circuits, display drivers, audio and operational amplifiers, communication interface products and …
“This is not the most original project, but working on my Apple II KSP project got me thinking about ancient sound cards, specifically the Mockingboard Sound available on old Apple IIs. These boards used the AY-3-8910/1/2 sound …
“A general purpose audio amplifier is very handy in many projects that are related to audio. This project, which can be completed within a few hours, is a more advanced version of the simple LM386 based amplifiers projects normally found …
“Waveform generators (also called function generators) are useful for testing and debugging circuits. I often use them to test the frequency response of electronics components like op amp and sensors. This waveform generator is powered by an Arduino. It outputs …
“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 …
“To be able to mimic Darth Vader during a party or any other occasion can be a lot of fun. Unfortunately commercial solutions are costly. The Hasbro Star Wars Darth Vader Voice Changer costs almost $300 on Amazon. In this …
“This is an alarm clock based on a RaspberryPi. Any RaspberryPi will work. I used a model B1 version 2 because it has the mounting holes and speed does not matter. I have a task that needs to be performed …
“The Tiny Audio Amplifier MODULE is a good choice for battery operation. It is based on LM386 IC, useful in various applications like robotics, science projects, intercom, FM radio and many more.”
“1Wamp is a one Watt small guitar amplifier based on a JFET guitar pre-amp, the Big Muff Pi tone control and the LM386 power amplifier. This portable amp is an open hardware project designed by ElectroSmash using only free and …