Hardware upgrade - #1
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- Add docs/HARDWARE_BOM.md: complete shopping list with INR estimates, printable checklist, corrected power architecture (separate 5V bus) - Add docs/WIRING_GUIDE.md: pin-by-pin wiring for Rover and Gateway, voltage divider circuits, motor truth table, first-power-on checklist - Fix: MQ-4 needs 5V + voltage divider (diagram had 3.3V, no divider) - Fix: separate 5V power bus (diagram routed all loads through ESP32 5V pin) - Fix: added decoupling capacitors to BOM (470uF on 5V, 100nF on 3V3) - Remove 10 temp Python fix/rewrite/update scripts from previous iterations - Gateway: add LED pinMode init and heartbeat toggle on serial RX
Updated hardware specifications to reflect the use of USB Type-C instead of Micro-USB for ESP32 boards and added a Buck Converter module for voltage regulation.
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