Simple circuit indicates health of lithium-ion batteries
Fritz Weld @ edn.com proposes a simple circuit to check li-ion battery health. He writes: Lithium-ion batteries are sensitive to bad treatment. Fire, explosions, and other hazardous condition may occur when you charge the cell below the margin that the manufacturer defines. Modern...
Continue ReadingBoost Converters and Buck Converters: Power Electronics
Boost Converters and Buck Converters: Power Electronics -...
Continue ReadingExploring Eagle CAD ULPs #6 – Group-aps_v4.ULP Autoplace by Group
Welcome to the 6th post of the “Exploring Eagle CAD ULPs” series. Each post will be discussing one useful ULP in Eagle CAD. “ULP” User Language Program is a plain text file which is written in a C-like syntax and can be used to access the EAGLE data structures and to create a...
Continue ReadingFast Single-Pixel Camera
Compressed sensing is an new computational technique to extract large amounts of information from a signal. Researchers from Rice University, for example, have built a camera that can generate 2D-images using only a single light sensor (‘pixel’) instead of the millions of pixels in...
Continue ReadingRaspberry Pi Publishing MQTT Messages to ESP8266
Rui @ randomnerdtutorials.com tipped us with his latest tutorial. He writes: In this project you’ll create a standalone web server with a Raspberry Pi that can toggle two LEDs from an ESP8266 using MQTT protocol. You can replace those LEDs with any output (like a relay that...
Continue ReadingStromPi, The Uninterruptible Power Supply for Raspberry Pi
It seems evident that the Raspberry Pi and its clones have filled an enormous hidden need. The digital performance of such micro-computers is exceptional as long as they are used without any special dependence on power requirements, that is to say near an electrical outlet with power!...
Continue ReadingRobot Core – The Ultimate Raspberry Pi Robot Controller
The Robot Core, which is a robot control board for the Raspberry Pi and Arduino, brings many different elements into one awesome package. It allows you to efficiently control motors, servos, and read sensor data without needing 3-4 additional boards to hookup. Several Robot Core boards...
Continue ReadingKnow your Tool – Optimize C Code for microcontrollers
One of the talks in the “Embedded Linux Conference 2016” was about best practices to optimize C for microcontrollers. This talk deserves to be mentioned to Electronics-lab readers. The presenter Khem Raj worked on Comcast’s (broadcasting and cable television company) reference...
Continue Reading