My Commentary and Technical help



From BobDavis321

Tuesday, November 28, 2023

Converting RGB controller to ESP8266 WLED Ws2812 Controller.

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I am converting an old RGB controller to an ESP8266 WLED WS2812 Controller.  I removed the power transistors and cut the runs for the pull u...
Wednesday, November 1, 2023

MLX90640 and ESP32 Thermal Imaging Camera with 2.8" TFT SPI

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I decided to update my old thermal imaging camera.  Back in 2020 I had built a AMG8833 based camera.  Its resolution was only 8x8 pixels.  T...
Thursday, October 12, 2023

64 x 72 LED wall with ESP32 and WS2812B

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I have been making LED signs for many years.  This blog testifies to that.  However I thought I would take my latest design to the next leve...

Is AliExpress a scam?

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 Aliexpress kept saying my package arrived but was not deliverable, there was a "Delivery Issue".  This went on for three or four ...
Thursday, August 10, 2023

My Equinox failed inspection...

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 It has been a month of a comedy of errors.  My regular place to get the car inspected was having issues with its inspection machine.  He sa...
Monday, July 10, 2023

I have damaged three TV's in a row while trying to fix them.

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I am batting three in a row for destroying TV's while trying to fix them.  In all three cases all I had to do was replace the LED Backli...
Tuesday, June 13, 2023

CA-300V Super LED tester TV Backlight Review

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Years ago I started testing TV LED Backlights with 9 volt batteries.  There are even videos of me doing that on Youtube. Well I fianlly brok...
Monday, June 5, 2023

Dynex DX-37L150A11 Replace Fluorescent Backlight tubes with LED strips

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I hate to see newer TV's go in the garbage.  Recently I was at our local firehall as they filled bin after bin with defective TV's a...
Thursday, June 1, 2023

2011 Chevy Equinox One Year Repair history.

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Well it has almost been a year since I purchased the Chevy Equinox.  It has been an expensive year at that!  I cannot remember what some of ...

JBL SB2 Subwofer Speaker Repair

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 I recently repaired some JBL SB2 subwoofers.  They had been overpowered and there were boils in the voice coil form. I have never fixed a s...

Good Bye to the 2008 Ford Taurus

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Well the Ford Taurus developed a really bad brake fluid leak.  i crawled under it and discovered that the drivers side rear tire support had...
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