1.5 GHz Frequency Counter
How about making your own professional Frequency Counter for your workbench? It's simple! Download the blueprints, build and enjoy. The device measures signal frequencies from 0.1 Hz to 1.5 GHz and displays them on a 2 × 16 character LCD. Supports minimum and maximum hold functions, and selection of frequency units.
0-999 sec Timer
Audio Spectrum Analyzer
This is a real time LED Audio Spectrum Analyzer. You can embed this unit in an audio system or use it as a stand-alone unit. The LED Spectrum Analyzer can display a real-time bar-graph spectrogram...