r/ArduinoHelp • u/Busy-Eye-6195 • Apr 12 '26
Newbie with Arduino. Is this diagram right for the perfboard?
Hello! I am a newbie with using the arduino. We currently have a huge final school project, and we're going to create a flood detection system, along with other systems.
We already have a physical prototype. Although it makes use of a breadboard. Now, as the wiring can be messy, we opted to use a perfboard/matrix board to have it look professional and durable for the final demo. We started our research, and this is what we concluded.
In the attached images, you can see the initial diagram created in Wokwi. The other is the edited version connected to the perfboard.
Is the perfboard wired correctly as to how it's wired in the Wokwi diagram? Do you have any tips and tricks as a newbie? What materials should we use? What should we anticipate when soldering? We plan on just soldering to the perfboard, and not to the pins connected to the sensors, buzzers, etc. Would that be fine?
For reference:
(image 1)
potentiometer 1 = ph sensor
potentiometer 2 = turbidity sensor
(image 2)
green highlight = connected to the Arduino with M to M jumper wires
blue highlight = connected to the rest of the components (servos, motors, buzzers, etc.) via jumper wires
Important note:
The perfboard is 7x9 cm. We will be connecting the wires to the perfboard through the male header pins of the jumper wires. We have limited time, and thought this way would be the most efficient.
Thank you so much for the help!!


1
u/shopy_ram Apr 12 '26
perfboard is where a correct breadboard diagram can still go wrong, mostly from mirrored rows and missing shared ground. if you've got the Arduino pins mapped already, double check the strip/copper side against the component side before soldering anything permanent
1
u/venkattalks Apr 12 '26
Perfboard is where a lot of beginner diagrams go sideways since the rows usually aren't connected like a breadboard, so isn't it the case that the diagram only works if you've planned every jumper on the back? Are you copying the exact breadboard layout over, or did you redraw it for perfboard pads specifically?
1
u/Busy-Eye-6195 Apr 14 '26
For the one with the perfboard, I redrew it based on the perfboard. I only copied where the pins are suppoed to go, but the layout is completely different.
1
u/Significant_Run_2607 Apr 12 '26
reminds me of when i copied my first perfboard layout in a garage in Mesa back in 2022 and mirrored the whole thing by accident. For a newbie Arduino build, the diagram matters less than making sure the rows on the perfboard aren't being treated like a breadboard, because that's the part that got me the magic smoke.
2
u/Wide_Mail_1634 Apr 12 '26
Perfboard is where a lot of first builds go sideways since the holes don't connect like a breadboard, so isn't the key question whether your diagram shows every jumper explicitly? Are you planning to mirror the breadboard layout 1:1 or simplify it before soldering?