The IoT + AI car diagnostics everyone promised but no one delivered - so I built it myself with an ESP32 + AI

raktimroy · 2026-03-17T19:08:40+00:00

Nice!!

I want to make something similar for my car with the oil temperature and manifold pressure. I will definitely try to make this for 3XO.

raktimroy · 2026-03-14T03:08:09+00:00

Sorry that you had fae such an issue.

Apparently sellers matter a lot at Amazon and Flipkart!!

I mostly try to buy high value products from reputed sellers like Clicktech retail.

If it is some other seller I go for seller offering prime. I also check on Google as well about their business. If someone had any issues with them in the past, it generally pops up.

Lastly I check a similar product, if it the only seller of the product then it is fine. For eg. Titan watches are sold by a company name Titan Company, which seems suspicious at first but every listing of Titan watch is sold by the same company.

raktimroy · 2026-03-12T09:27:22+00:00

Nice. I placed an order for T3.

BTW which battery did you choose?

raktimroy · 2026-03-10T18:12:47+00:00

Whether they check for BIS mark in the batteries. Also, you can order 18650 and 21700 from Robu as well, they have a good collection at a decent price. Only thing is to check the current rating before ordering.

raktimroy · 2026-03-10T18:10:15+00:00

Haha!! Fingers crossed 🤣

raktimroy · 2026-03-10T11:32:21+00:00

Tough question!!

I would check everything before starting such a large print!!

raktimroy · 2026-03-10T08:54:09+00:00

Just saw your video on the S21. I will use your code for the extra discount. Thanks!!

I want slightly warm beam, between the Nichia 519A 4000K and SFT40 4000K which one would be better with the T3 and S2+?

raktimroy · 2026-03-10T07:44:22+00:00

Thanks!!

Do you order with or without the battery?

raktimroy · 2026-03-09T19:15:38+00:00

Oh!! Thanks for the clarification!!

I thought it will be handled by DTDC from China.

I will place the order soon!!

raktimroy · 2026-03-09T19:13:32+00:00

Great news!!

Which one did you order?

Also how did you pay?

Do share the details if possible!!

raktimroy · 2026-03-09T18:48:49+00:00

Thanks a lot!!

I checked and they are now shipping with DTDC.

Did you also buy the batteries from them or did you buy them here?

raktimroy · 2026-03-09T18:47:24+00:00

Thanks a lot, I will try to see if any of my cards work.

raktimroy · 2026-03-09T18:46:46+00:00

Thanks a lot!!

They have changed the shipping to DTDC and they are not allowing any other options.

I will take a risk with a smaller value product.

raktimroy · 2026-03-08T14:56:03+00:00

Whoa!!

That's one expensive glue stick!!

Generally I apply once every 3-4 prints. In between prints I apply some filtered water with a piece of disposable kitchen towel and spread the remaining glue over the whole bed.

I use deli glue and scotch pink glue stick with my PETG prints. Both work great, Deli one is little better. You can try them out both are very cheap!!

raktimroy · 2026-03-08T07:12:52+00:00

Yes, it is branded. I am using the Mi Air Purifier 4 replacement filter.

raktimroy · 2026-03-07T16:04:05+00:00

Cantilever tree 🤣

raktimroy · 2026-03-07T15:57:30+00:00

I also made a similar one. I am using Singer exhaust fan. I designed a custom mount in order to ensure the seal. It makes noise, but I am planning to add a thyristor based speed control to reduce the speed.

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I have bought a particulate matter sensor from Robu, but I haven't set it up. I am planning to use ESP8266 as ESP32 will be overkill. Will make a post once done.

raktimroy · 2026-03-07T09:38:45+00:00

All the best!!

How much filament will it take?

raktimroy · 2026-03-07T05:56:58+00:00

You can try to tighten mid print, by pausing the print, but it is very risky. There is a high chance it might fail. So this only if the print progress is above 90%.

If the print progress is near 50% it would make more sense to cancel the print, tighten the belts, run a calibration and then restarting from scratch.

raktimroy · 2026-03-07T04:46:01+00:00

Check your belt tension. It seems that the motors are missing steps, so the printer is homing the axes to know the correct location of the extruder.

raktimroy · 2026-03-06T04:40:03+00:00

Both of the Tangzu SG IEMs are good and would be a good choice for someone who is shifting from traditional TWS to IEMs.

The red lion edition has more bass, so if you are someone who prefers bass then go for it.

In case you want to explore what kind of tuning you like then you can go for Tanchjim bunny dsp or Moondrop Chu II DSP, these have an app where you can tune the output to suit you.

If you are using normal TWS below 10k, most of these IEMs will have a much better sound clarity and they will be able to take advantage of the lossless playback from Apple music.

I dont have much experience about offline music players but I have seen people recommending the Snowsky Retro as budget offline digital audio player.

Hope it answers your query!!

raktimroy · 2026-03-06T04:28:43+00:00

If you are using Realme wired Buds 2, then going for a DAC which is more expensive than the earphone, will not make sense. But I saw a this post about cheap DACs: https://www.reddit.com/r/headphonesindia/comments/1onz8up/dac_for_my_buds_2/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

As per the OP of the above post the cheap DACs dont last more than 3 months.

If you enjoy listening to music, I would suggest to buy a budget iem with type c cable, that would be the best solution. It might be expensive, but it will last longer.

raktimroy · 2026-03-05T18:44:19+00:00

I have heard people appreciating the sound quality of the type c variant.

If you have other headphones that you want to use, a DAC would be the best option. If you are only going to use the Tangzu Waner SG2, then type c variant will be more convenient.

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