Did I kill another Jackpot v3?

LowRider CNC Troubleshooting
1

Hey everyone,

I’m hoping for a sanity check before I accept my fate and order yet another Jackpot v3… and wait another week staring sadly at my CNC like it’s grounded. :sweat_smile:

Last week I was wiring up my FluidDial pendant and managed to do the classic “how to let the smoke out” move: I accidentally put 5V into pin 14. Jackpot #1 did not survive my “learning experience.”

So I ordered a replacement Jackpot v3 (Jackpot #2). I wired everything up, powered it on, connected to the onboard Wi-Fi, uploaded my config, then power-cycled it.

After that… it never came back.

What I’ve tried so far:

  • Plugging into my PC over USB (known good cable)

  • Watching Device Manager while unplugging/replugging

  • With only USB connected, nothing shows up (no COM port, no unknown device, nothing)

  • 5V LED lights up, but otherwise it’s basically acting like a fancy paperweight

So now I’m wondering:

  • Did I somehow fry another board? (Please say no…)

  • Has anyone seen a Jackpot v3 get “bricked” after a bad config upload / reboot?

  • Any recommended recovery steps (boot mode, reflash, anything) before I have to go another weekend without my new toy?

I appreciate any help you can give me.

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2

On the original jackpot the ESP32 is removable. Its possible you killed the ESP board but NOT the jackpot controller board.

ESP32 boards are very cheap to replace. Might be worth trying a replacement on your original Jackpot controller board. Just make sure its the right size, there’s 32 pin and 38 pin versions and even some narrower than others.

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3

Also if your original Jackpot was a V1 the config file changed for V3 so your old config wont work.

4

Everything including the pendant or no?

5

Yes including the pendant.

6

Unfortunately i have the Jackpot3 so the ESP32 is soldered to the board, but maybe I’ll try it anyways.

7

Can you show a picture of your pendant? You say FluidDial but maybe you mean the CYD pendant? It makes more sense to me that you would kill something with a CYD pendant vs the FluidDial with the connection kit. Are you sure you are using a straight wired RJ12 cable?

Side note: I’m a bit biased… but a pendant can’t kill a controller if it’s wireless. But also, you really don’t need a pendant at all.

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8

Apologies I misunderstood, I thought your first board was a jackpot v1.

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9

All good, I wish I did have a V1 would make it a lot easier!

10

I love your setup, at this point it would have been cheaper to go that route from the beginning! It is the FluidDial, I am not using the RJ12 but the gpio.13, gpio.14, VMot, and Gnd in the center of the board.

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11

Oh, you should really be using the FluidDial wiring kit. It adds some protection and simplifies wiring.

https://www.elecrow.com/fluiddial-rj12-wiring-kit.html

12

For clarity, did you have 24VDC power connected to the board when you then connected it to your computer with a USB data cable?

13

I have tried it both with the 24v connected, and disconnected.

14

Well the board did not survive my soldering attempt :upside_down_face: . I ordered another one, so I guess I will just have to wait.

1 Like
15

Well, for this next one a few notes:

  • I would not connect the pendant at all until the rest of it is sorted out. I would seriously consider getting that FluidDial connection kit. This is what is standing out to me. Feel free to have us review your config and wiring before you connect it. We’re happy to review with or without pendant.
  • General advice on not bricking a board. I’m not sure what you know or don’t know so I’m just listed what I know.
    • Don’t connect dust collection right away. It needs to be grounded or that can kill boards.
    • Don’t plug in or unplug anything while it is powered.
    • Don’t move anything by hand while the motors are not powered/disabled.
    • Double check polarity and that power wires are securely attached.
16

what were u trying to solder?

17

I attempted to desolder the esp32 from the jackpot, ended up with some leads that pulled up.

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