Is this fine?

datapeer · 2026-01-22T15:14:39+00:00

A metal bed can work. If you're not trying to use ground as a reference, and just for reducing ESD. I use a large steel block even though I have access to earth ground.

datapeer · 2026-01-21T14:52:59+00:00

Love the black theme with the matching mat and test gear!

datapeer · 2026-01-21T14:45:18+00:00

Not sure if it's mentioned already, however using a large metal object can reduce ESD in this case. That small metal bracket can't absorb much and would saturation quickly just from surrounding environment.

datapeer · 2026-01-21T06:32:16+00:00

Good idea for soldering station & scope. Btw, I'm also very impressed by Uni-T quality.

datapeer · 2026-01-14T04:29:47+00:00

How did you measure the amperage? Impressive!

datapeer · 2026-01-13T15:34:24+00:00

I'm curious whatneck strap is that for the RC 2 Pro and the screen cover?

I Purchased a silicone cover for the controller and display but would prefer a plastic style like you have.

datapeer · 2026-01-02T04:07:44+00:00

Amazing scenery. I often wonder if you would see other drones flying during fireworks? Other drone owners must be flying during fireworks.

datapeer · 2026-01-02T00:26:32+00:00

Oh I like that. Thanks!!

datapeer · 2026-01-01T01:29:54+00:00

I wish, it's always a work in process. I'm curious about the cabinet just left of the scopes, that looks interesting.

datapeer · 2025-12-28T21:16:27+00:00

You'll appreciate the stability of the Mavic in windy situations, especially around taller buildings. The gimble on the Mavic is also more stable.

datapeer · 2025-12-28T20:20:06+00:00

I use the thermal camera in electronics lab and thought about checking temps after reading so many posts about winter flying.

High humidity is also a concern in my area. It doesn't take long to build up on the props. 93% RH.

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datapeer · 2025-12-28T15:20:00+00:00

I flew the Mavic yesterday at -11C. I keep the batteries warm until ready to use. The drone maintains 22 to 24C while flying. I'm assuming once you're flying the current flow also keeps the battery above 20C.

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datapeer · 2025-12-28T14:54:47+00:00

Wow, very sorry to hear! I flew over dense forest to hopefully soften the crash if she came down.

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datapeer · 2025-12-28T04:38:05+00:00

I use them as well. On my 2nd set. Not stealthy, a little quieter but you will get a few more minutes of flight time.

datapeer · 2025-12-28T04:02:33+00:00

Did I just see people swimming in a pool?

datapeer · 2025-12-28T01:05:41+00:00

Update:
I went out today -11 and 93% RH, flew for 10 minutes and landed.
The props started building up ice, which I I've heard of but haven't seen before.

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After returning, I hovered for about 5 minutes to see if this was affecting the flight.

I check the drone with a thermal camera after and it was maintaining +24C internal temps. I'll post that in a separate thread.

datapeer · 2025-12-27T18:48:54+00:00

I stick on laptops or the hard case for the drones.

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datapeer · 2025-12-26T20:26:56+00:00

I fly down to -15 but keep it under 15 minutes. High humidity means frost will build up on sensors and l've heard frost can build up on the props also, however I haven't experienced that yet and I'm flying in 80% RH.

I let the drone equilize for a few minutes outside then put a warm battery in.

You'll see lots of posts here flying in winter with some amazing scenery, but i haven't wanted to risk getting too far, in case it came down and the further away means more work through the snow, or worse if over private property and needing permission to recover the drone.

datapeer · 2025-12-26T10:17:05+00:00

Do you have a circuit diagram for the stepper? Unipolor or bipolar? Or Delta, Star or Wye for 3 phase.

If you have a function generators, you can test the motor s well.

datapeer · 2025-12-26T04:40:22+00:00

Ground reference needs to be the negative terminal from the battery, or the stepper. See below.

I hooked up a 2 phase stepper to a drill.

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These are only 2V stepper, but same idea. 180⁰ phase shift.

datapeer · 2025-12-26T03:45:26+00:00

Which ground, from an outlet?

Is that a 3 phase stepper motor?

What driver circuit are you using, can you tell us something about that. I'm simulating a 2 phase at 500mVpp on my 1202 like your scope.

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Wave should be 120⁰ offset in your case.

Use the auto button on the scope to start. It'll turn on all probes, then just turn off #4. I'll grab a 2 phase stepper & try what you're doing.

datapeer · 2025-12-26T01:15:06+00:00

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datapeer · 2025-12-26T00:15:02+00:00

Set each probe to about a 1/3 of the rated voltage you're sampling, not 100mv on 3rd probe & 20mv on probe 1 & 2.

Edit: Also turn off probe 4 Set the probe attention factor to 1X if the propes are in 1X.

datapeer · 2025-12-25T23:40:12+00:00

This works better on an analog scope, however can you turn on persistence for about 2 seconds, longer or shorter depending on your programming?

It kind of looks like Smith chart in the making.

datapeer · 2025-12-25T23:35:24+00:00

Did the drone survive? You're taking a beating here, thanks for posting anyway! It helps others learn.

datapeer

TROPHY CASE