Just4Stan

Just4Stan / Open-4in1-AM32-ESC

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Open-source 4-in-1 ESC for FPV drones. 20x20 mounting, 35A/channel, 3-6S, AT32F421, Betaflight compatible. KiCad 9 + JLCPCB ready

52
7
100% credibility
Found Mar 12, 2026 at 52 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
AI Summary

This repository shares open-source design files for building a 4-in-1 electronic speed controller board for FPV drones, ready for easy manufacturing.

How It Works

1
🛩️ Discover the drone upgrade

While browsing for ways to improve your FPV drone's motors, you find this open design for a powerful 4-in-1 motor controller.

2
📺 Watch the how-it-works video

You watch a friendly video that explains everything simply, showing how it powers your drone smoothly.

3
🔥 Get inspired to build

You feel excited and decide to create your own using the ready-to-order files.

4
📥 Download the making files

You grab the simple files needed to have it manufactured.

5
🏭 Order from the maker service

You upload the files to a trusted board-making service like JLCPCB, pick your options, and place the order.

6
📦 Receive and set up your part

Your custom board arrives, you add the special motor control software if needed, and connect it to your drone.

🚀 Fly higher and faster

Your drone now zips through the air with reliable power, giving you thrilling FPV flights.

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AI-Generated Review

What is Open-4in1-AM32-ESC?

This GitHub repo delivers an open source 4 in 1 ESC design for FPV drones, packing four 35A/channel motor controllers into a compact 20x20mm board that handles 3-6S LiPo batteries. It runs AM32 firmware on an AT32F421 MCU and supports Betaflight via DShot protocol, solving the pain of sourcing reliable, customizable ESCs without proprietary lock-in. Developers get KiCad schematics and JLCPCB-ready production files to fab their own hardware.

Why is it gaining traction?

As an open source GitHub alternative to closed drone ESCs, it stands out with full 6-layer PCB specs, current sensing up to 165A peak, and a Betaflight-compatible 8-pin connector—ready for assembly without redesign. The JLCPCB BOM and Gerber files make prototyping dead simple, plus a demo video shows it in action. Among open source GitHub tools for drones, its CERN-OHL-S license lets you modify and sell freely.

Who should use this?

FPV drone builders customizing quads for racing or freestyle, Betaflight users needing AM32-compatible 4in1 ESCs, and hobbyist hardware hackers ordering from JLCPCB. It's ideal for those tired of overpriced commercial boards but comfortable with PCB assembly.

Verdict

Solid specs and docs for an early open source 4-in-1 ESC, but the 1.0% credibility score and 47 stars signal low maturity—test a prototype first. Worth watching as AM32 certification lands.

(178 words)

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