Breadboard Wiring Guide
0:03
Work done
- Renamed the project to ESP32 Breadboard Sensor Prototype.
- Repaired the broken power short on U2 by separating the ESP32 3.3 V rail from GPIO/signal nets.
- Established distinct rails and labeled nets: 3V3_RAIL, VIN_5V_RAIL, GND, I2C_SDA, I2C_SCL, ONEWIRE_DS18B20, TILT_SW520, LM393_DO, MQ2_ANALOG, DHT11_DATA, GPS_TX_TO_ESP32, and GPS_RX_FROM_ESP32.
- Explicitly reconnected U1, U3, U4, U5, U6, U9, and U10 to the ESP32 with clear power vs. signal separation.
- Verified ERC after the rewiring: no power-pin, pin-to-pin, undriven-net, or single-pin-net errors remain.
Success criteria review
- ✅ A clean breadboard-oriented electrical structure is now present with distinct 3.3 V, 5 V/VIN, and GND rails.
- ✅ All placed sensor modules except the mismatched U8 are explicitly reconnected with clearly labeled signal nets.
- ✅ Incorrect power-signal connections were repaired and ERC now shows the modified nets are electrically valid.
- ⚠️ The current U8 part is still a transformer-style symbol, not a normal SW-420 sensor-module symbol, so it was not electrically reconnected as a breadboard sensor block.
- ⚠️ I corrected the connectivity, but I cannot physically redraw/move the schematic symbols on the page from chat. The electrical structure is ready; the visual breadboard layout still needs manual symbol arrangement around U7.
Fix power net mixups
Map sensor signal nets
Separate breadboard rails
Check SW-420 wiring
16 days
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