Power checklist
Brownouts, weak USB cables, 3.3V/5V mistakes, regulators, and current spikes.
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Electronics Project Rescue Pack
Check power, wiring, modules, sensors, code symptoms, buying choices, and breadboard-to-PCB readiness before you waste another evening debugging blindly.
Module debug sheet
OLED, relays, SIM800L, sensors, ESP32-CAM, and common wiring traps.
India buying list
What to buy first, what to skip, and which parts create avoidable problems.
Breadboard-to-PCB checklist
Know when your project is ready for connectors, BOM cleanup, PCB, and enclosure planning.
Firmware symptom map
Wrong baud rate, blocking code, pin conflicts, library mismatch, and serial debug flow.
Student project notes
Component list, explanation prompts, reliability points, and upgrade ideas.
Early Access
Get the pack when PCBVault opens.
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