My Commentary and Technical help

I purchased a P3 (3mm LED spacing) 64 by 32 HUB75E Panel on eBay.  Needless to say it does not work with a "normal" HUB75 interfac...

DISCLAIMER: I am not a doctor nor do I play one on TV, but the docs have sure seen a lot of me. If you have a medical problem see a doctor. ...

I am trying to decide what to build next.  Amoung the options is "Arduino Audio Projects".  Should I use a different processor?  T...

I was given a Dynex 37 inch LCD TV to repair or sell parts out of.  The first most obvious problem is the power supply needed two new 1000 u...

I am rebuilding the humanoid robot from a few years back, but this time it has a Raspberry Pi controlling it via a PCA9685 controller. H...

Has anyone ever tried taking two LCD screens, placing them one over the other and using a common backlight to make a 3D TV?  Since every TV ...

I have been building a 6 DOF Robotic arm by reverse engineering the ones found on eBay.  The only new part is the lazy Susan at the base.  T...

I recently purchased a 5 DOF metal humanoid robot hand.  It comes with instructions but they are written in translated English.  Also some...

I recently had to replace the power switch in a Shure wireless microphone.  If your microphone will not turn on, try replacing the switch.  ...

I have been rebuilding my CNC with T Slot aluminum and Fully Supported Linear Rails.  Now I am testing it with a Laser to see its accuracy. ...

The 2018 Lancaster NY Hamfest is over.  It might be the last one for me this year unless I go to the one in Elmira NY. This is my display....

 I recently replaced the lattice in my carport with the heavy plastic.  The panels are called "26 in. x 8 ft. Polycarbonate Roofing Pan...