A Mini Microphone Preamplifier
In this post we’ll cover the design of a microphone preamplifier, something always useful when dealing with audio applications. This…
A versatile, powerful 10 + 10 W Audio amplifier
Today we present you a stereo 10 + 10 Watts audio amplifier based on TDA7297SA, a monolithic dual bridge amplifier…
3Drag (or Being Open Source, For real)
Being really open source is no joke. Open sourcing an hardware product, usually goes through several major steps. The first…
GSM GPS shield for Arduino
Shield for Arduino designed and based on the module GSM/GPRS SIM900 or the GSM/GPRS & GPS module SIM908, to make…
Robot shield for Arduino
The idea behind this post is to bring together some robot designs and trasform them in a new device with…
Localizer with SIM908 module
The device is based on a GSM/GPRS module with included GPS. Its main function is to detect and communicate its…
Arduino RFID shield
This shield could be used as a stand-alone transponder key, or with Google’s servers to create a cloud-computing application. It’s…