Digital logic

Module goal: understand logic levels and wire a digital input so it reads reliably.

Status alpha (in trial use) · about 130 minutes

You need: a TESAIoT Dev Kit flashed with the QWA309 Header I/O Test example, a breadboard, a push button, a resistor, a multimeter, and a logic analyzer

Lesson	Topic	Time
elec.m02.l01	Logic levels and basic gates	65 minutes
elec.m02.l02	Pull-ups, pull-downs and push buttons	65 minutes

Module checkpoint

• can decide from datasheet values whether a 1.8 V device and a 3.3 V device can be wired directly together
• can wire a button as active-low with a pull-up, and explain why it reads 0 when pressed
• can measure a button’s bounce with a logic analyzer and choose a debounce time from the data