The most challenging aspect of handcrafted circuit boards lies in the wiring of the circuits. Most existing technologies can only utilize planar wiring principles, making it difficult to adopt three-dimensional wiring, indicating that this is also a direction for development.
Below is a sound-controlled clap switch circuit, which can be constructed with just thirty components.
Although this circuit appears simple and seems easy to handcraft, the most difficult part of this circuit is the wiring on the universal perforated board. I have also failed several times, and the records of my failures are as follows:
Compared to the wiring issues on the perforated board, directly using components to build a structure for soldering is simpler and more straightforward. This is the same sound-controlled clap switch sold on Pinduoduo, with the principle of the finished product as follows:
The wiring is neat, achieved using photolithography technology, and one can also use FeCl3 solution for etching. Thank you for reading