Macrofab Engineering Podcast

Bits Flying In Parker Ordered Compressor IoT Board. Will start on the Software side. Wrote an article about PCB board outlines and what to watch out for. It is waiting for Stephen to look over it and make sure it is not missing anything. Defining planes in DipTrace with board outlines vs Eagle. Parker has Vias that haunt him. Bad pinout designs for ICs can cause unnecessary vias in board layout. The LSM9DS1TR is an example of one. Stephen Synthesizer Update MIDI code problems and triumphs Audio clip of before tuning and after tuning. Frequency doubles for every ½ volt you put in for the VCO (Voltage Controlled Oscillator). Zener diode - Zener diodes leak - caused huge calibration issues with synth. The Zener diode was installed to prevent over voltage of the ADC. Lower frequencies were really sharp, higher frequencies were flat. Plot of IV curve now matches with data sheet. Basically Stephen characterized the Zener Diode leakage current! Article series for the synth - on modules and theory of operatio