High-Quality Stereo Digital-To-Analog Converter, Pt.2
- ATmega48 firmware and C source code for the Stereo DAC [0110909A.HEX]
- Stereo DAC Digital/Control board PCB pattern (PDF download) [01109091]
- Stereo DAC Analog board PCB pattern (PDF download) [01109092]
- Stereo DAC Switch board PCB pattern (PDF download) [01109093]
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Circuit Notebook
- PIC12F629 firmware (HEX) and source code for the RS-232 to IrDA Transmitter
- PICAXE-08M BASIC source code for the Tank Gauge/Pump Control for Caravans & Boats
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Digital Megohm & Leakage Current Meter
- PIC16F88 firmware and source code for the Digital Megohm & Leakage Current Meter [0411009A.HEX]
- Digital Megohm and Leakage Current Meter PCB pattern (PDF download) [04110091]
- Digital Megohm and Leakage Current Meter front panel artwork (PDF download)
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Using A Wideband O₂ Sensor In Your Car, Pt.2
- PIC16F88 firmware and source code for the Wideband Oxygen Sensor Controller [0511009A.HEX]
- Wideband Oxygen Sensor Controller PCB pattern (PDF download) [05110091]
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