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
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
 Cornell ECE 5030 students Uma Mohan, Sarvesh Sukhatme and Priyanka Venkatesh have designed a Portable Device for Measuring Hydration and Body Fat. The project passes a small current through the body to measure the amount of hydration in the person. A 940 nm LED is used to detect the amount of fat the person has by shining it through a part of the body, the amount of light
Pyroelectro has just started a course to teach you how to use FPGA and CPLD devices. If you are currently using microcontrollers this course will give you the skills to move to the next level. There are 10 lessons in the course which will start you at hello world and quickly progress into some very usable topics. The video above is from the first of 10 course videos, the
If you are looking to design some underwater propulsion Dane from Transistor Man has completed a well documented Submersible Thruster build to get some pointers from. “The goal here is to design a submersible motor assembly that is able to accomplish the following: Able to operate, submersed, up to 1 meter underwater while not transfering more than 10ml of coolant into the surrounding water per hour (not leaky) Capable of
We all use Bypass Capacitors in our designs but what size do you normally pick and why? Does location of the bypass capacitor matter? Should you use multiple values of capacitors? Chances are some of these questions are not obvious and might enhance your future designs if you know the answers. Electro Labs has a great article that solves of these questions in their Bypass Capacitor Tutorial.
When you send off your Gerber files to have your latest board made you will be shipped some shiny new board in a few weeks. The process of creating the boards is very time consuming, the video above goes through the many steps of how a 4 layer PCB is created. Most boards are 2 layer but it is interesting to see how the inner layers of the 4
