I want to construct this circuit because it look worth to try. However, I am not sure about connection between the components. This is the components placement that I tried, does it make sense?

Please ignore the random wire color.

Circuit diagram


enter image description here

I also make layout for the circuit but components in the app are missing and not complete, so I just use whatever exist as long as I can see the connection. I hope you can understand this layout.



I try to fix the layout following the answers. Is this how it should be?// I want to move the components instead of cutting track.

enter image description here

  • \$\begingroup\$ does it make sense? Anything makes sense if you don't mention what you want to achieve. What are you trying to achieve? \$\endgroup\$ Sep 2 at 19:18
  • \$\begingroup\$ That looks like perfboard, not breadboard. Are the rows connected electrically? \$\endgroup\$ Sep 2 at 19:19
  • 1
    \$\begingroup\$ @Pete, that's stripboard. The brown rows are copper strips / tracks. See my answer to electronics.stackexchange.com/a/395058/73158. \$\endgroup\$
    – Transistor
    Sep 2 at 19:30
  • \$\begingroup\$ @Transistor thanks. I’m colorblind and it all looks the same color to me. \$\endgroup\$ Sep 2 at 19:38
  • \$\begingroup\$ @Pete, many are having good success with Enchroma glasses. These seem to use a precise notch filter to cut out the wavelengths where the common green-red overlap occurs. The results depend on the type of colour blindness but it would be worth checking. See the reactions on YouTube. \$\endgroup\$
    – Transistor
    Sep 2 at 19:46

Otherwise it makes sense, but D1 and D2 are shorted and it won't work. Also D3 and buzzer are shorted together, so as R3 is bypassed with a short circuit the D3 is likely to get too much current and burn.

To fix this, either move components around so they are not on same rows, or cut the copper track between unrelated components.

  • \$\begingroup\$ Also C2 is shorted and does nothing. Oh, it's a trimmer. Hmm \$\endgroup\$ Sep 2 at 19:19
  • \$\begingroup\$ @Bimpelrekkie C1 and C2 are placeholders for a trimmer pot. \$\endgroup\$
    – Justme
    Sep 2 at 19:20

There are a few problems.

enter image description here

  1. You need to cut here to break the connection between D1 and D2.
  2. You're powering IC1 from the wiper of the potentiometer. It should move to the next track.
  3. You need another break here otherwise the LED is in parallel with the buzzer and has no current limiting as R3 is short-circuited.

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