Sensorless Homing in Python - RP2040 | TMC2209
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I’ll show you how to set up sensorless homing using a TMC2209 stepper driver — no mechanical limit switches required!
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Model information
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- Printables
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- Electronics
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- Creative Commons — Attribution — Noncommercial — Share Alike
Use sensorless homing in your own projects!
In this project and associate video I’ll show you how to set up sensorless homing using a TMC2209 stepper driver — no mechanical limit switches required! Perfect for 3D printers, CNC machines, robotics, and other DIY electronics projects. I’ll guide you through the wiring, Arduino code, and how to tune StallGuard for accurate, reliable homing.
Whether you’re building a CoreXY, a custom motion control system, or just want to learn more about stepper motor drivers, this is a great place to start. Let’s build smarter!
List of items used in this project and where to find them:
- Waveshare RP2040-Zero: https://geni.us/Waveshare-RP2040Zero
- Mini560 DC-DC Buck Converter 5v: https://geni.us/Mini560
- BIGTREETECH TMC2209 V1.3: https://geni.us/TMC2209 vMomentary Button: https://geni.us/6x6TactileButton
- 1k Resistor: https://geni.us/Ufa2s
- Sliding Switch: https://geni.us/SlideSwitchSPDT
- Screw Terminal PCB Mount 5mm pitch: https://geni.us/PCBScrewTerminals
- Headers and Pins: https://geni.us/HeadersAndPins
- 3D Printer Filament: https://www.3djake.uk
- Some M3x8 bolts: https://geni.us/NutsAndBolts
- 12v Power Supply (2 amp+): https://geni.us/12VPowerSupply2A
Get Kit of parts from Etsy to build your own: https://diymachines.etsy.com/uk/listing/4326334730/sensorless-homing-electronics-kit
Projects PCB: https://www.pcbway.com/project/shareproject/Sensorless_Homing_in_Python_RP2040_TMC2209_dae5adca.html
These are some of my favourite tools I use and can recommend:
- Battery-powered glue gun: http://geni.us/BoschBatteryGlueGun
- Bosch Bit Driver: https://geni.us/Bosch-Screwdriver
I use a Prusa MK3S for my projects and highly recommend both it and the Prusa Mini.
If I inspired you to take up 3D printing please consider purchasing a printer via this link: http://shop.prusa3d.com/#a_aid=diymachines
Prusa support my channel when you use that link at no cost to yourself. :)
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3D printed parts, wiring diagrams, FAQ etc can be found here: https://diymachines.co.uk/
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Provide continual and dependable support through Patreon: https://www.patreon.com/diymachines
Or join this channel on Youtube Memberships: https://www.youtube.com/channel/UC3jc4X-kEq-dEDYhQ8QoYnQ/join
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List of camera and lighting equipment I use:
- Sony A7 III: https://geni.us/Sony-Alpha7-III
- Tamron 28-75mm F2.8 RXD A036SF Lens for Sony-FE : https://geni.us/TamronRXD-28-75mm
- Aputure Amaran HR672C: https://geni.us/AputureAmaranHR672C
- Aputure MC: https://geni.us/FAPGL RØDE
- VideoMic Pro+: https://geni.us/RodeVideoMic-ProPlus
- Philips Hue Lightstrip Plus: https://geni.us/PhilipsHue-LightStrip
Disclaimer: This video is shared for demonstration purposes only.