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...
Its been few days that i was trying to get a damage mobile phone, any model is fine for the purpose that i need. Luckily i got a NOKIA 1100, which is an old series of nokia. The phone was in a terrible condition. I mean it was taken from water and some parts of the PCB was getting corroded.
I did some clean up work and wala.. it was well cleaned enough. So i did some research on the nokia 1100 PCB and connected the voltage links and gave 4V and it was on but nothing on the screen. screen is damage, which i don't need later but at start i need it so i fixed and put my SIM and it appears NO SIM INSERTED.. so i did fix that problem and wala.. the phone works fine.
Tonight i will take some pictures of it and post it here.. next step is little hard but will try it. Tonight nokia MBUS/FBUS will be wired and interface to my Laptop for further investigations..keke so keep on peeping.
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