Schmitt Trigger Switch Debouncer (Briot Tracer)

In a recent post I've explained how I repaired a faulty Briot Tracer. One of the faults, despite not being directly related to the switch debouncer circuitry, required the reverse engineer of it to study if the signal was reaching the microprocessor correctly.

As the switch debouncer used in the Tracer is not the basic or classic Schmitt trigger circuit, it makes sense to take a moment to analyze it. In this post I will explain how this circuit works and it's differences with a conventional Schmitt trigger debouncer.

Reverse Engineering the Briot Tracer: Hardware II

In the post Reverse Engineering the Briot Tracer: Hardware I promised to post a hierarchical schematic of the Briot Tracer. The time has come.

You can find in this post the complete hierarchical schematic in PDF as well as the Kicad project, have fun!.