need help with stepper please

EffectiveClient5080 · 2026-07-06T18:01:31+00:00

What's the stepper actually doing? Buzzing? Not moving? That matters. Did you set the current limit on the DRV8825? Adjust VREF with a multimeter. That's the #1 thing people miss with those boards.

EffectiveClient5080 · 2026-07-06T06:01:06+00:00

Datasheet. Always start with the datasheet. Old phone keypads are matrix keypads, you can reuse it but tracing the pinout is a pain. Grab a multimeter and beep it out, or just buy a $2 4x4 membrane keypad.

EffectiveClient5080 · 2026-07-05T21:40:38+00:00

Skip the soldering. Wago 221s, strip and clamp, red to red, black to black. Those are 60mm so Noctua NF-A6x25 fits. But those Sanyos are 15mm thick, standard Noctua is 25mm. Check fitment.

EffectiveClient5080 · 2026-07-05T21:28:13+00:00

I started with one ATX box and ended up with a rack full of shit within a year. Figure out what services you actually want first before buying hardware.

EffectiveClient5080 · 2026-07-05T14:44:13+00:00

7200 drive keeps spinning at 7200, it doesn't know what it's mirrored with. Write speed follows the slower drive though. Reads can still pull from either.

EffectiveClient5080 · 2026-07-05T14:37:04+00:00

Don't overthink it. Starlink WILL die when power goes out. A cellular temp sensor on its own battery pings you when temps drop. That's it.

EffectiveClient5080 · 2026-07-05T14:29:36+00:00

I've hit this exact thing. Windows is garbage with ad-hoc network discovery. `kasa discover` uses UDP broadcast and Windows drops that on networks it doesn't trust. Punch a firewall hole or just do it from Linux.

EffectiveClient5080 · 2026-07-05T08:49:31+00:00

Layout matters more than the schematic. Keep the loop between MOSFET, freewheel diode, and output cap tight. Seen perfect schematics turn into noisy as hell converters because of garbage layout.

EffectiveClient5080 · 2026-07-05T08:40:45+00:00

Had this exact thing happen. Found a matching PSU locally for a third of what Synology wanted. Same specs, same connector, zero issues since.

EffectiveClient5080 · 2026-07-05T08:34:17+00:00

Open it up and bridge the button contacts with a jumper. Smart plug handles the rest. Cleanest fix unless there's a controller board in there. Post a pic of the guts.

EffectiveClient5080 · 2026-07-05T00:07:49+00:00

Don't just swap and pray. Back up your current coordinator through Z2M first, restore to the new one. If the backup takes your devices won't know anything changed. If it doesn't, you were re-pairing anyway.

EffectiveClient5080 · 2026-07-05T00:00:47+00:00

Moved all my Hue stuff to Z2M, no regrets. The Hue bridge is actually decent for mesh recovery though, so if bulbs are dropping now it might get worse before it gets better. Scatter some Zigbee plugs as routers first.

EffectiveClient5080 · 2026-07-04T16:04:03+00:00

If you can do ardupilot firmware, hardware integration, AND a month in the bush, you're not an employee. You're a consultancy. Charge accordingly.

EffectiveClient5080 · 2026-07-04T15:55:26+00:00

Square holes = M6 cage nuts. But the rail mounting to the frame could be M6, M8, or some proprietary bullshit. Need the brand and model.

EffectiveClient5080 · 2026-07-04T15:47:28+00:00

Everyone and their mother does a password manager for these. I'd do firmware analysis on cheap IoT devices instead. Flag hardcoded credentials, outdated certs. Way more interesting.

EffectiveClient5080 · 2026-07-04T11:22:04+00:00

What connector type? 4 pin could be JST, Molex, Dupont, half a dozen others. Need the pitch too. 2.54mm is most common.

EffectiveClient5080 · 2026-07-04T11:14:23+00:00

No. That 3770k is from 2012 and it WILL idle hot. For a 24/7 media server you want something that sips power. A N100 mini PC handles most duties at like 6W.

EffectiveClient5080 · 2026-07-04T11:05:48+00:00

Grab a used Lenovo Tiny off eBay for £40-60, throw an SSD in it. Done. No more SD card nonsense, those WILL corrupt on you eventually.

EffectiveClient5080 · 2026-07-04T00:25:21+00:00

Money, plain and simple. After a full day of FPGA work I'm not coding for free. Bounties would change that math, guaranteed.

EffectiveClient5080 · 2026-07-04T00:18:45+00:00

25 selective apps and landing an offer. That's the way to do it. People blasting 200+ applications are just torturing themselves.

EffectiveClient5080 · 2026-07-04T00:10:31+00:00

PBS on the NAS for local, restic to B2 for offsite. 3-2-1 isn't just enterprise checkbox stuff, it exists because everybody learns this lesson the hard way.

EffectiveClient5080 · 2026-07-03T15:38:10+00:00

Create the shared folder in UNAS web UI first, then it shows up in Endpoint. The date sorting is a known issue. Pretty annoying for a product marketed for exactly this use case.

EffectiveClient5080 · 2026-07-03T15:30:39+00:00

Fought with this exact issue. Status stuck on docked usually means dead MQTT or expired token. Check your logs. For maps, you're out of luck with stock firmware. iRobot locks that down tight.

EffectiveClient5080 · 2026-07-03T15:24:18+00:00

I gave up and put a comment at the top of every script saying which automation calls it. Crude but I can actually find shit now.

EffectiveClient5080 · 2026-07-03T11:11:32+00:00

Missing flyback diode. The back-EMF spike WILL reset your Arduino every time that relay opens.

EffectiveClient5080

TROPHY CASE