PIR Motion Sensor Module (study and reverse engineering)
PIR Motion Sensor module are used for control lights or for alarm systems. I study a PIR module for light control. I try to made reverse engineering, but quickly I found the schematic on...
Category: reverse engineering
120W PMPO PC speaker (reverse engineering)
A long time ago I buy a cheap pear of active PC speaker named SoundSTAR Multimedia Speaker – 120W PMPO. This audio amplifier is made with UTC2025 (similar with TEA2025 – see datasheet) and is...
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