Getting Help

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Debugging Checklist

Before asking for help, try these:

Power

  • [ ] Is Vcc getting +5V?
  • [ ] Is GND properly connected?
  • [ ] Are power rails continuous on breadboard?

Connections

  • [ ] Are all wires firmly inserted?
  • [ ] Is IC oriented correctly (notch/dot at pin 1)?
  • [ ] Are components in the right holes?

Components

  • [ ] Are LEDs oriented correctly (long leg = anode)?
  • [ ] Are capacitors correctly polarized (if electrolytic)?
  • [ ] Are you using the right IC (check chip number)?
  • [ ] Are resistor values correct (color code)?

Logic

  • [ ] Does your circuit match the schematic?
  • [ ] Are signals going to the right pins?
  • [ ] Is your clock signal working?

Still stuck? → Ask on WhatsApp or Piazza!

WhatsApp Group

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Course Discussion Forum

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How to Ask Good Questions

Include:

  • Which exercise/project you're working on
  • What you expected to happen
  • What actually happens
  • What you've already tried
  • Clear photos of your circuit (top view, good lighting)
  • Schematic if you have one

Good example:

Module 1, Exercise 2
Problem: My CD4026 isn't counting. Display stays at 0.
What I tried: 
- Verified 5V on pin 16, GND on pin 8
- Checked clock signal with LED - it's blinking
- Reset pin (15) is connected to GND
Photo: [attached breadboard image]

Bad example:

"It doesn't work help"