ESP32 Smart City Controller
Thought for 7 sec
Claro — necesito que me indiques cuál capacitor y dónde debería ir.
Puedes responder con algo como:
- “C1 debe ir junto al conector del servo J3”
- “C3 debe ir cerca del pin 5V del ESP32”
- “El capacitor cerca de la esquina inferior derecha debe ir junto a U1”
Si puedes, selecciona el capacitor en Flux o dime su designador (C1, C2, C3, C4 o C5) y lo muevo a su lugar.
ya lo tengo seleccionado
Thought for 6 sec
Perfecto, revisaré el componente seleccionado y lo recolocaré donde corresponde según su función en el circuito.
Worked for 7 mins 33 sec
Listo. Moví C1 junto al conector del servo J3, manteniendo el resto de los componentes en sus posiciones. Verifiqué que quedó dentro de la placa y sin solapamientos.
Revisar, enrutar y verificar
Revisar colocación completa
Enrutar placa
Ejecutar DRC
Revisar polaridad
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Board Bring-Up Plan — ESP32 Smart City Controller
Prerequisites
- Current-limited 5 V bench supply, multimeter, oscilloscope, USB cable, known HC-SR04, known servo, microphone module, 10 kΩ potentiometer, and six test LEDs.
- Start with the servo disconnected.
- C1/C3 polarity: P1 positive, P2 ground.
1. Visual Inspection
- Verify U1 orientation and all connector pin-1 markings.
- Check C1 and C3 polarity.
- Check R7 = 10 kΩ and R8 = 18 kΩ.
- Inspect 0603 solder joints and connector shorts.
2. Power Rail Verification
Table
| Rail | Source | Expected | Initial Current Limit | Measure At | Pass Criteria |
|---|---|---|---|---|---|
5V_EXT | J1 PIN1 | 5.0 V | 100 mA, servo disconnected | U1 5V / J3 5v | 4.75–5.25 V, no heating |
3V3 | U1 regulator | 3.3 V | increase to 500 mA if normal | J4 pin 1 / J5 VCC | 3.20–3.40 V |
- With power off, verify no short between J1 PIN1 and PIN2.
- Apply 5 V with 100 mA limit and servo disconnected.
- If normal, raise limit to 1 A and verify U1 boots.
- Verify C1/C3 do not warm or vent.
3. Critical Signals
Table
| Signal | Expected |
|---|---|
GPIO12 / LED1_GPIO12 | Low during reset; normal output after firmware starts |
SERVO_PWM | Low during reset; 50 Hz pulses after servo initialization |
US_ECHO_GPIO5 | Never above 3.3 V; approximately 3.2 V for a 5 V ECHO high |
4. Connector Tests
Table
| Connector | Pinout / Test |
|---|---|
| J1 | PIN1 5 V, PIN2 GND |
| J2 | 1 VCC, 2 TRIG, 3 ECHO, 4 GND |
| J3 | Named Gnd, 5v, Data terminals |
| J4 | 1 3V3, 2 microphone OUT, 3 GND |
| J5 | VCC 3V3, Output GPIO35, GND |
| J6–J11 | P1 active-high LED signal, P2 GND |
5. Programming
- Disconnect J1 power unless the DevKit power-path behavior has been verified.
- Connect U1 onboard USB.
- Run
pio run -t uploadfrom the Firmware Starter project file. - Open
pio device monitorat 115200 baud.
6. Functional Validation
- HC-SR04: measured distance should track a target from roughly 5–100 cm.
- ECHO divider: scope GPIO5 and confirm high level below 3.3 V.
- Microphone: ADC reading should vary with sound and stay between 0 and 4095.
- Potentiometer: ADC reading should sweep approximately 0–4095.
- LEDs: each J6–J11 channel should independently source a few milliamps through its 220 Ω resistor.
- Servo: connect only after power checks; current-limit the supply initially to 1 A, then raise based on the servo datasheet. Confirm no ESP32 reset during motion.
- Wi-Fi: verify connection or scan behavior and confirm ADC1 inputs continue operating.
7. Pass/Fail
Table
| Section | Result | Notes |
|---|---|---|
| Visual inspection | [ ] Pass [ ] Fail | |
| 5 V rail | [ ] Pass [ ] Fail | |
| 3.3 V rail | [ ] Pass [ ] Fail | |
| Programming | [ ] Pass [ ] Fail | |
| Sensors/ADC | [ ] Pass [ ] Fail | |
| LED channels | [ ] Pass [ ] Fail | |
| Servo under load | [ ] Pass [ ] Fail | |
| Wi-Fi | [ ] Pass [ ] Fail |
Prerequisites
1. Visual Inspection
2. Power Rail Verification
3. Critical Signals
4. Connector Tests
5. Programming
6. Functional Validation
7. Pass/Fail
