The Mobile Acoustic Array Robot Sensor (MAARS) project is an array of three equally spaced audio microphones in a triangular plane that detects sound sources from any direction to use in mobile robot navigation and line of sight sensor pointing. It is an acoustic sensor that provides non line of sight detection of audio [...]
This FM Wireless Microphone project has good frequency stability and has range over 1 Km (under good conditions). This project features RF amplifier buffer (10dB gain), an AF preamplifier to boost the modulation and good microphone sensitivity. You can use it for guitars and remote control system.
This project quite simple to build. The two [...]
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