No Apple AirPlay No USB audio input May not sound better than the Wiim Amp So when Wiim announced its follow-up — the $379 Wiim Amp Pro — with better Wi-Fi and Bluetooth, improved audio ...
[Pinomelean] has posted an Instructable on how to create a mini line following robot using only analog circuitry ... that control the gain of each op-amp. Once everything is balanced, the ...
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