If you are working on a project where you want to get rid of EMI from entering an input you might want to look into using some ferrite beads, they can help you out in removing high frequency noise from your circuit. The ferrite looks like a variable resistor that has no impact on your circuit at low infrequence and starts to conduct to short out higher frequencies. It
The Raspberry Pi is a very powerful heart of many cool projects including this Raspberry Pi Model Train Controller by MrNotbuyinit. The description of the electronics starts at around 2:35. The prototype interface from the Pi is a simple breadboard which looks to be ideal for quick and easy additions and modifications. The Pi is interfacing with a port expander to get more digital outputs out of the Pi.
Are you good at math? Not sure you will think that after you watch the TED Talk featuring Arthur Benjamin, the Mathemagician. “Dr. Arthur Benjamin is both a professor of mathematics and a magician. He has combined his two loves to create a dynamic presentation called “Mathemagics,” suitable for all audiences, where he demonstrates and explains his secrets for performing rapid mental calculations faster than a calculator.”
If you are looking to add some WiFi connectivity to your next project the HLK-RM04 Serial to WiFi Module might be just the thing if you want to go wireless. The $10 HLK-RM04Â module handles all of the WiFi overhead so your microcontroller project can simply send serial data to it using the TX and RX pins. RAYSHOBBY.NET has a great tutorial including code to get you started with
Kaptein QK from the EEVBlog Forum shows off his 3D Printed Wall Chain Clock. The clock uses a Arduino Nano for the brains but he opted to code it in C using the AVR Studio 6, the stepper motor is being driven using an L298N dual H bridge. You can watch the clock in action below. This is a great clock for glancing at to see what the approximate
 This time we will be taking a look at a Black and Decker model T2707SKT Toaster. Not that I was looking for a toaster to teardown but I just happened to stumble across it at my local XS Cargo store. It was a factory reconditioned unit that was then returned. The issue listed on the ticket was that one side didn’t heat properly. The regular price was around
Thanks to Spy Tec for sending the Zetta Z12 Spy Camera in for review. The unit is nice and small, the battery is designed to last long enough to catch the video you need. There are lots of uses for this device, if you have someone that is borrowing your morning paper or leaving your doggy presents on your lawn you can hide this little device to catch the
