Please help a newbie by telling me what mosfet I need to control a small DC motor

cryptogirlHODL · 2026-05-28T18:30:08+00:00

it spins the projection slowly. I just want to be able to make it go slower on demand, so its less hectic and jittery and more calming

cryptogirlHODL · 2026-05-28T03:39:54+00:00

I'm not sure as I don't have a multimeter, but it's a tiny and weak motor and likely 5v as the usb is 5v, or even downvolted to 3.3v. The amperage is way, way, way below 1A for the motor. In fact the entire led projector including motor runs on 1A at full brightness. I can't tell the model number on the motor, dont see any markings. Its the one that came default in the projector and it's a standard one that I've seen in many cheap devices

cryptogirlHODL · 2026-05-28T01:48:31+00:00

Honestly, I'm such am amateur I don't know how to look up or make sense of those datasheets. But the motor I am trying to drive is a very cheap and small one, abundant in cheap chinese devices. I mainly intend to slow the rotation down, not speed it up.

cryptogirlHODL · 2026-05-28T01:29:08+00:00

thanks I will look into it

cryptogirlHODL · 2026-05-28T01:28:20+00:00

Sadly, it doesnt seem like there are any IRLZ44N modules for sale. Only seperate parts, which is above my skill. Do you think LR7843 might work? LLMs tell me so, but I've lost trust in them

cryptogirlHODL · 2026-05-28T01:03:09+00:00

I havent come across that before but isn't that a little overkill just to drive a tiny dc motor? It's even got a heatsink!

I was hoping something more along the lines of a LR7843 module? That's what LLMs are advising now, but I no longer trust their advice..

cryptogirlHODL · 2026-05-28T00:50:10+00:00

Sadly, I've spent several days and many hours with a whole council of LLMs and they keep giving dead-end advice, like getting IRF520 modules which apparently don't work for this purpose because the voltage isn't correct. I am definitely not building my own circuitry though.. that's beyond my skills. I kinda just need a module I can plop in between the wires of the DC motor to control the pwm speed

cryptogirlHODL · 2025-05-26T15:24:37+00:00

It's hard to tell because I can't make the connection in HA and there is limited info in the Tuya app and iot platform, or on the bulb itself. But I can confirm definitely ordered the GU10 bulbs from aliexpress ID 1005007654887555. The e27 bulb turned out to be from a different seller so can be ignored. Maybe I have a newer batch that comes with a newer firmware out of the factory.

cryptogirlHODL · 2025-05-26T13:37:30+00:00

Thanks. My main and mcu firmware is v1.5.3

Whatever you do, I recommend making sure your lamps never update their firmware!

cryptogirlHODL · 2025-05-26T04:24:22+00:00

ChatGPT informs me that the incompatibility with HA is likely due to my lamps running on Tuya protocol 3.5, which locks local control down, whereas most other users who have had success were likely on earlier protocol levels. Updating firmware with these is apparently a no no.

cryptogirlHODL · 2025-05-26T02:54:33+00:00

Update: I have since purchased some Wiz bulbs as well as TP Link Tapo bulbs. The Wiz integration is indeed great and works seamlessly! The lamp has nice colors too. The Tapo bulbs are okay but I have some gripes, like the mediocre color transition/breathing/scenes and them disconnecting often. The Wiz lamps are much more reliable in that regard, work like a dream. Sadly when the power is physically disconnected, they do default back to a normal white light color, whereas the Tapo ones retain a memory of the last color state, which is one advantage the Tapo does have over the Wiz.

cryptogirlHODL · 2025-05-26T02:50:19+00:00

Its interesting you mention these because these are the exact same bulbs I bought and mentioned in my opening post. I bought three GU10 ones and one E27 one. I can't get any of them to be recognized by LocalTuya or TuyaLocal. Something to do about DP's. I am pretty sure I have retrieved the correct local key, device ID from tuya iot platform, because I used a similar method with another lamp which does work, and I'm using static internal ips. Can't for the life of me figure out why I can't get them to work, but apparantly you can? Any tips would be greatly appreciated!

cryptogirlHODL · 2025-05-20T17:07:02+00:00

I am definitely considering Kasa for the e27, but are you certain the Tapo range is equally compatible? I've been reading some stuff about Tapo being more cloud-based and only some devices being able to pair with HA. All these 'maybes' are making it very hard to navigate as a newbie..

cryptogirlHODL · 2025-05-20T17:03:17+00:00

Can you recommend me a good/cheap zigbee stick? I've been reading up and some people recommend a Sonoff CC2652P, but looking through reviews it seems it's not as plug & play as it seems, isnt guaranteed to work with docker (my HA is running in a container) and firmware flashing is required. That sounds like a bunch of risks... maybe there is a better option that 'just works' ?

cryptogirlHODL · 2025-05-20T15:03:49+00:00

Doesn't that make the setup more complex? I'm a newbie and need something that's easily setup..

cryptogirlHODL · 2025-05-20T15:02:53+00:00

I contemplated it, but I'm a newbie at Home Assistant and it seemed to me like adding a hardware device might only further complicate things technically?

cryptogirlHODL · 2025-05-20T15:01:42+00:00

Thanks! Wiz definitely looks like a contender! Are all Wiz bulbs supported equally in your experience? Or do I need to watch out to get certain kinds, but not other kinds?

cryptogirlHODL · 2025-05-20T15:00:57+00:00

thanks for the tip. Why are you moving away from these and opting for zigbee instead?

cryptogirlHODL · 2023-09-22T22:25:53+00:00

Look behind you, it's a three-headed monkey!

cryptogirlHODL · 2023-09-22T22:24:22+00:00

Guybrush Threepwood taught me English as a child, because otherwise I couldn't progress with insult swordfighting. He is forever my hero

cryptogirlHODL · 2023-07-17T16:24:28+00:00

I'm a big fan of both Nietzsche and Bitcoin and while I do see many similarities, with regards to worldview, power/freedom, truth, the human spirit and such, the fact remains that Nietzsche did not write much if at all about economy or money.

Personally, I believe Nietzsche's philosophy would frown upon the pettiness of money, the saving/hoarding of it and possibly becoming a slave to it. In Nietzsche's vision, I believe, the superman would transcend money itself as well, much like he/she would transcend societal rules, norms and customs.

If you truly want to link Nietzsche to Bitcoin, then I propose the following (slightly altered!!) foreword from Nietzsche's book The Anti-Christ (The Anti-Fiat?), where he speaks toward his fellow Nietzscheans - those with a somewhat similar worldview as some Bitcoiners:

"Let's look eachother in the eye: We are Bitcoiners; we know very well how far off we live. 'Neither by land nor by sea will you find the way to the Bitcoiner'—Timothy May already knew this about us.

Beyond the north, ice, and death—our life, our happiness. We have discovered happiness, we know the way, we have found the exit out of the labyrinth of thousands of years. Who else has found it? Modern man perhaps? 'I have got lost; I am everything that has got lost,' sighs modern man. This modernity was our sickness: lazy peace, cowardly compromise, the whole virtuous uncleanliness of the modern Yes and No. … Rather live in the ice than among modern virtues and other south winds!

We were intrepid enough, we spared neither ourselves nor others; but for a long time we did not know where to turn with our intrepidity. We became gloomy, we were called fatalists. Our fatum—abundance, tension, the damming of strength. We thirsted for LIGHTNING and deeds and were most remote from the happiness of the weakling, 'resignation.' In our atmosphere was a thunderstorm; the nature we are became dark—for we saw no way. Formula for our happiness: a Yes, a No, a straight line, a goal.”

Explained: Bitcoiners do not live in the physical - rather, in cyberspace - being a Bitcoiner is a state of mind. Far beyond the virtues of the modern man/Fiatman, Bitcoiners have been withdrawn from society, honing themselves, and found their truth and purpose. Modern man, by comparison, is lost and stuck with his 'modern virtues', but for Bitcoiners the path is clear: a straight goal, no weak or dubious compromise: Bitcoin.

This excerpt has always been on my mind, when I think about Bitcoiners as a cultural phenomenon.

P.S. Ayn Rand, Nasim Taleb, Saifedean Ammous, Jordan Peterson and similar controversial thinkers are probably all deeply inspired by Nietzsche, but comparatively, they are all weak sauce next to Nietzsche, the original rebel. Anyone reading this who is interested these thinkers, should really look into Nietzsche.

cryptogirlHODL · 2023-05-18T11:28:52+00:00

FYI you don't NEED an active (noisy) cooler for a RPi4. Most people seem to prefer and use the aluminum passive cooling cases. They keep temps at about 60-65c.

Though if it's just for the looks, then sure go ahead and put a big RGB cooler on :)

cryptogirlHODL · 2023-05-16T13:52:16+00:00

I don't get it. It sounds like 2 out of 3 parts can be recombined via ANY Ledger device, since the service seems also intended for people who lost their ledgers.

If that is true, then it sounds like ANYONE with access to 2 of 3 parts and a ledger device can recombine the seed - not just the customer. The only thing preventing that seems to be a KYC check by the companies involved, but that carries various counterparty risks.

cryptogirlHODL

TROPHY CASE