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ELECTRONICS

Spirit Pi ESP32-S3 Metal Detector Circuit

A worked electronics example, rendered live. Open it in the AI editor and adapt it to your own case.

UPDATED 2026-09-19
TYPECircuit
USE-CASESpirit Pi Metal Detector
EXAMPLESpirit Pi ESP32-S3 Metal Detector Circuit
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CASE ANALYSIS

Scenario

User needs a practical Spirit Pi metal detector circuit diagram for an ESP32-S3-N16R8 build, including battery charging, power rails, search coil driver, and audio output.

Key decisions

  • Use netlist mode with SPICE-style component IDs and explicit labels for clarity.
  • Model the ESP32-S3 as a type=mcu IC with power, ground, DAC audio, PWM coil drive, and sense pins.
  • Add damping resistor across the search coil for stable pulse-induction pulses.

When to reuse this

Reuse this diagram as a power, charging, and audio subsystem reference for ESP32-based metal detector builds that need a clean, renderable schematic.

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