Light2Sound LDR Synth


Build a light theremin into a musical noisemaker with Weekend Projects. This project combines a 555 timer, light-dependent resistor, LED, speaker, and some basic components into a battery-powered synth that's easy to assemble and fun to play. Read more »

Universal Translator


Turn a $35 mini-computer into a feature-rich language translator that not only supports voice recognition and native speaker playback, but is also capable of translating between thousands of language pairs. Read more »