My Commentary and Technical help



From BobDavis321

Tuesday, January 28, 2025

Big LED sign with 6x4 of 32x32 P6 LED panels

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My latest LED sign is by far my biggest LED sign yet!  I purchased a pile of P6 32x32 LED panels on eBay for about $10 each.  The seller eve...
Wednesday, January 1, 2025

Expanding my sign with 16x16 addressable LED arrays.

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 I am expanding my sign with 16x16 WS2812B Addressable LED arrays.  Currently I am at 3x5 of these arrays but am working on adding three mor...
Friday, November 29, 2024

Sunrise Systems LED Sign revisited

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 I was asked to convert another Sunrise Systems LED sign to Arduino control and wireless updates via bluetooth.  This time I wanted to make ...
Friday, June 21, 2024

InMoov Compatible Hand Design Upgrade

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I am working on a InMoov Compatible Hand Design Upgrade.  The main goal is to put all the servos in the hand.  Years ago I printed out a han...
Wednesday, June 5, 2024

Converting TV to LED sign with 16x16 Arrays and SP801E

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 I have been Converting an  old TV into a LED sign with 16x16 Arrays and SP801E controller.  At first I had 8 of the 16x15 ws2812 LED arrays...
Friday, May 31, 2024

Repair of Suzuki GP-3 Digital Piano

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My brother dropped off a Suzuki GP-3 electric digital piano for repairs. Many of the keys were stuck in the down position.  So I googled how...
Thursday, March 7, 2024

Rocker Bogey 6 Wheel Drive Mars Rover

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 I had about eight wheels and matching motors around so I decided to make a six wheel drive Arduino controlled rover.  Then I discovered the...
Wednesday, February 21, 2024

Peavey Combo 115 repairs

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My brother bought me a Peaver Combo 115 for repair.  They used controls with plastic shafts that broke off. They upgraded the design to use ...
Wednesday, February 7, 2024

WARNING - 5630 LED strip lights are burning out!

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I have many 5630 LED strip lights that have burned out after only 2 months of use.  Here is what they look like now that they have been repl...
Monday, February 5, 2024

Arduino Controlled Colloidal Silver Maker with Nokia 5110

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I saw that someone had copied my colloidal silver maker design and their design was trending at number one when you search for Arduino Collo...
1 comment:
Saturday, February 3, 2024

The Capacitor Disaster is back!

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 About 20 years ago the market was flooded with faulty capacitors.  This is happening once again.  Three times within one week I had to fix ...
Tuesday, January 16, 2024

EcoQuest Fresh Air II air purifier repair 2

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I found myself once again doing some EcoQuest Fresh Air II air purifier repairs.  One of ours quit making ozone.  I opened it up but could n...
1 comment:
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