Hacking a 3-phase treadmill, with a DSO138
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- Опубликовано: 13 мар 2020
- Upshot: I salvage a few custom-build VFD's off of commercial grade treadmills, and figure out how to repurpose them for the shop.
These VFD boards are Digital Concepts ACD1U's, which were paired with DGE1U's upper displays, sometime circa 2004 on a number of different Star Trac brand treadmills. Using a DSO138 oscillocsope, I was able to cobble together a proof of concept for replacing that display with a simple Arduino - something much better suited for a shop environment.
Github link for the Arduino code and list of pinouts:
github.com/swolebro/swolebro-...
(Check the raw readme file for the pinouts; formatting got flubbed in the GitHub preview.)
This is Getting to Blinky, for KiCAD 5.0: • Getting to Blinky 5.0
Here's my playlist for Arduino stuff:
• Arduino
Donate to me make more cool shit:
paypal.me/swolebroshopworks 
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Extremely helpful vid. Thanks for putting all of this together.
Good deductions! A logic analyser is another tool for hacking; it is similar to an o-scope, and with software, will detect many protocols. Cheap on ebay too. Thanks.
At least it was an educational experience reverse engineering. However Allen Bradley Powerflex 4 VFDs (as an example) can be had dirt cheap used, without having to decode and hack on an Arduino. One model can convert 120v single phase to 208V 3 phase and would be more user friendly for the lathe. It even has a speed potentiometer on the front panel that can be used or bypassed. With some other add-on items like a small HMI screen and a Remote I/O or Ethernet connection, you could set up a simple custom touch screen interface to control it. Your method might be more fun from a raw engineering perspective, and I can respect that.
hi great video, but the treadmill i got has a network input instead how to figure this one out
Hi nice video, do you have some tip for shop that sells treadmill parts like diplay, or modules ?
eBay is probably your best bet.
@@swolebro Hey, I have exaclly same treadmill as you, but my primary chip in display blows up and i cant find any parts just few for very high price.. If I send you some money (say how much) could you send me the codes from that mcu? I can replace it by new one and load up your code ,it must be same.. Seriosly i want to fix it up please ! :) THX and have a nice day
@@blaharadek666 Pinouts and arduino code are here:
github.com/swolebro/swolebro-youtube/tree/4c1713429b1308968b498cf004f2da30bb18c9e1/arduino/treadmill
Formatting on the README got a bit messed up, probably easier to read the raw file:
raw.githubusercontent.com/swolebro/swolebro-youtube/4c1713429b1308968b498cf004f2da30bb18c9e1/arduino/treadmill/README.rst
Lemme see if I can get around to listing some of the spare parts on eBay. Been meaning to do that, now that I know what I need to actually get the VFD parts up and running.
@@swolebro Wow thank you ! Yeah the readme txt is much better in second link.
If you find anything just send it here i will notice it , as I said, its lot of money for whole console display.. on top of Iam able to change the MCU by myself but i cant find firmware to it :/ Is it possible to read codes from MCU anyway ? Isnt it locked ?
I may pick up another display that gives out a PWM and replace this one.. But I need to figure out every single wire of VFD, if you want i will send you the rest of pins meaning :) and sorry for my english its not my language :D
And please where is the link for pinout ? I can do it by myself but you already writed it out :D Would be nice from you to save some time to me, btw nice videos and content !