My Commentary and Technical help

After not having a lot of success with a more complex robot I went backwards and built a 9 DOF humanoid robot.  Here is a picture of that ro...

I am back to working on the walking humanoid robot after writing another book.  First I had to make an Arduino Shield to control the servo...

I have been wrining a book of "Arduino Oscilloscope Projects".  In this book I show 4 different LCD's, 5 different Analog to d...

A few days ago we walked to the Eternal Flame at Chestnut Ridge Park.  Here are some pictures. This is a chipmunk that watches us on our wa...

Over the weekend I figured out how to interface a 2.8 inch SPI TFT that has a ILI9341 chip to an Arduino Uno.  All it takes is eight 1K resi...

This year I made it back to the Batavia NY Hamfest!   It was bigger than most of the Hamfests that I make it to.  The picture only shows one...

My book "Arduino Robotics Projects" ended with a walking dinosaur.  I might eventually write a sequel to that book with a spider a...

Last night I was testing a TDA8703 analog to digital converter and after trying 36 MHz I tried 50 MHz on a whim and it worked.  I also tried...

I have been testing various fast analog to digital converters with the Arduino.  There are two  objectives. I want to see if I can improve t...

Years ago I talked about the second civil war.  Here is one of several posts:   http://bobdavis321.blogspot.com/2011/03/more-on-upcoming-sec...

One of my favorite things to do is to go to Hamfests.  Here are some pictures from this years Chaffee NY Hamfest. This is my table.  Does ...

I am finishing up the biggest project for my latest book on LED cubes.  Here are a couple of video's about the 8x8x8 color LED cube. I...

I was at a yard sale and I asked them about a 32 inch TV.  They said it was free because the screen did not light up.  It turned out to be t...

I completed the third application for my 8x8x8 LED cube.  First it was to use it with an Arduino, then with a Raspberry Pi and then this kit...