Custom ESP32-S3 development board — professionally manufactured by JLCPCB. A far cry from where it all started. It Started in a School Science Lab — Around 1998 Most people who get into electronics start with a kit, a tutorial, maybe a breadboard and some LEDs. I started by sneaking ferric chloride out of a school science lab to etch my first PCB. That was around 1998. I was living in the Maldives — a small island nation in the Indian Ocean — where there was no electronics supply chain, no maker community, no local PCB fab. Just a chemistry cabinet at school, a copper-clad board from somewhere, and a lot of curiosity. This post is about what the next 25+ years of PCB prototyping looked like from there. The early wins with proper chemicals, the years of improvisation when those chemicals disappeared, the real injuries, the failed boards, and finally — the moment JLCPCB changed ever...
Today i found one of my old projects, actually experimenting stuffs. This is thing is a stepper motor controller. I think many people out there knows whats Stepper Motors are and how it works. Usually this type of motors are in printers and photocopy machines..etc. Actually the circuit i made was to interface a stepper motor to an micro controller IC so i can write a code to turn the motor to different degree and so.. usually this type of applications are used in Robots.
Before i wrote the operating code from assembly language and now i have changed it to C language and its simple and easily understandable for anyone. Hopefully some one will built a robot soon. ;)
Before i wrote the operating code from assembly language and now i have changed it to C language and its simple and easily understandable for anyone. Hopefully some one will built a robot soon. ;)
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