Stereo power amplifier 10+10W into 8 ohms based on the integrated PAM8610, suitable for systems that require high efficiency and little heat to be dissipated. By now, the miniaturization of electronic circuits is advancing unstoppably. It involves even those devices of traditional electronics such as audio amplifiers, which do not have a strict…
The seismometer is a device for detecting earthquakes and measuring their strength. Generally these are very accurate tools and are relatively difficult to build at home. Commercially available sensors are often expensive, and inexpensive shock-sensitive electronic modules are not accurate enough for this purpose. In this project we will see how to create a cheap…
Peter Balch, reading an IEEE report on speech recognition from the late 1970s, wondered if, with a normal Arduino Nano, it was possible to obtain the results of a computer of the time. Comparing the two tools a Nano has 2 KB of RAM, 32 KB of program ROM and runs at about 10 MIPS…
If you find an old broken Boombox at home, don’t throw it away! You can turn it into a modern one with Spotify and NFC cassettes. The cassettes will have an NFC tag inside them and each of them can be associated with a Playlist on Spotify. The old stereo was disassembled and deprived of…
Designed for small amplified audio speakers or as output stage for MP3 players, radio receivers or compact hi-fi systems; it is based on a class D integrated circuit which, thanks to the high efficiency, is ideal for battery-powered solutions. Small power amplifiers for battery-powered audio devices must satisfy two requisites, which are essentially…
Amazing board with volume and tone controls and a distortion fuzz integrated with activated/deactivated on demand; complete with a speaker and a power supply, it constitutes an essential tool for guitar exercises. Who likes to play electric guitar, unfortunately, knows that this instrument, unlike its acoustic alter ego, hasn’t a sound box: you can…
A compact stereo amplifier that may be used at home as well as in the car, and also to substitute broken audio power amplifiers or to create bench power amps for the analysis of audio devices. When repairing audio devices, it is always useful to have a BF amplifier on your workbench; all the…
A Low Frequency (i.e. audio LF) amplifier for many uses, able to drive small speakers in portable or stand-alone devices with maximum efficiency and without needing heat sinks. Particularly suitable as final stage for MP3 players and portable audio players. As the “hunger for watt” is insatiable, the demand for LF low power…
Today we present you a stereo 10 + 10 Watts audio amplifier based on TDA7297SA, a monolithic dual bridge amplifier that is suitable to be used in projects that feature access to a single 12 volts power supply. This is a compact stereo amplifier: its field of application range from car stereo to portable audiovisual…
Open-Electronics.org is the brainchild of a world leader in hobby electronics Futura Group srl. Open-Electronics.org is devoted to support development, hacking and playing with electronics: we share exciting open projects and create amazing products!
Open-Electronics.org is not just a container of ideas: it is also a web site lead by a team of engineers and geeks who will take part in the discussions and give support.
Our mission is to become a reference Open Source hacking site with ideas and feedback aimed to enrich the community.
