Spirit Pi Metal Detector Circuit Diagrams
The Spirit Pi is a popular open-source pulse induction metal detector. These circuit diagrams illustrate its core subsystems—power supply, microcontroller, transmitter/receiver, and preamp—helping hobbyists and engineers understand the design and adapt it for custom builds.
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About these examples.
Use the generator below to create your own Spirit Pi circuit diagram. Start from one of the examples or build from scratch with an extensive component library.
Make one yourself.
Choose a starting point
Open the circuit diagram maker and either select a Spirit Pi template from the gallery or begin with a blank canvas.
Add components
Drag and drop resistors, capacitors, transistors, microcontrollers, and connectors from the circuit symbol library onto the canvas.
Connect the components
Draw wires between component pins to create the electrical connections, following the reference schematic if needed.
Label and annotate
Add component values, net labels, and notes to make the diagram clear and buildable.
Export or share
Save the diagram as an image or PDF, or share a live link for collaboration or documentation.
Frequently asked questions
What is the Spirit Pi metal detector?
Can I use these diagrams to build my own Spirit Pi?
Is there an ESP32 version of the Spirit Pi circuit?
How do I export a circuit diagram for PCB design?
What software should I use to draw a Spirit Pi circuit diagram?
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