Portable GPS Data Logger
https://www.electronics-lab.com/portable-gps-data-logger/
elm-chan.org has build a portable GPS logger based on ATMega328 mcu: I have built a GPS Logger and it works very well to trace the drove route for two years. By the way, the navigation solution computed by GPS receiver itself has an excellent accuracy without DGPS because an intentional offset added by US goverment […]
100MHz frequency counter with PIC16F628A – LED Display
https://www.electronics-lab.com/project/100mhz-frequency-counter-with-pic16f628a/
Couple of weeks ago I purchased from eBay one of these amazingly cheap an useful modules with MAX7219 LED driver and 8 digit LED display. It is ideal for frequency counter project. The problem was the absence of library for PIC microcontrolers. Luckily, I found a great library for Arduino and I reworked it to […]
DIY milliohmmeter
https://www.electronics-lab.com/diy-milliohmmeter/
by hwmakers.eu: This is an example of a simple and cheap milliohmmeter that can be made by every maker. The core of the circuit are a current source (LT3092) and a current sense (INA225): a costant current flows through the milliohm resistor under test and the voltage at the current sense output gives the value of […]
Anti-Drowsiness Alarm
https://www.electronics-lab.com/anti-drowsiness-alarm/
This reference design is an anti-drowsiness alarm, which aims to keep the drivers alert by disrupting one’s drowse. According to the study by U. S. National Highway Traffic Safety Administration (NHTSA), drowsy driving is the primary contributor of at least 100,000 auto crashes a year. Statistics shows that most crashes caused by drowsy driving occur […]
How to use a Serial Voice Recognition Module
https://www.electronics-lab.com/how-to-use-a-serial-voice-recognition-module/
by codebender_cc @ instructables.com: In this tutorial you will learn how to use a voice recognition – serial – module with the Arduino uno board. This module can store up to 15 voice commands. Those are divided into 3 groups, with 5 commands in each group. First we should train the module with voice instructions group […]
Wifi throwie : improved version
https://www.electronics-lab.com/wifi-throwie-improved-version/
iotests.blogspot.fr build a throwie based on ESP8266 WiFi module and a mini drone battery, he writes: A few months ago, Andreas presented a nice version of the “throwie” (a LED packed with a small battery that you can throw & see shining for hours) using an ESP8266 instead of a LED : a “wifi throwie”. […]
LED-based time-of-flight IC for object detection and distance measurement
https://www.electronics-lab.com/led-based-time-of-flight-ic-for-object-detection-and-distance-measurement/
by Lee Goldberg @ edn.com: Although Intersil’s ISL29501 time-of-flight (ToF) signal processing IC doesn’t have anything to do with the lighting applications I normally cover, I felt compelled to bring it to your attention because it’s one of the most innovative LED applications I’ve seen this year. The device requires little more than an external emitter (LED […]
Introduction to OPAMPs and Applications
https://www.electronics-lab.com/introduction-to-opamps-and-applications/
Operational amplifiers (OPAMPs) are high performance differential amplifiers in integrated form that can be used in many different ways. A typical OPAMP has a non-inverting input, an inverting input, two dc power pins, one output pin and a few other fine-tuning pins. On the following image you can see a typical diagram of an operational […]
A Tutorial For Launching Your First Balloon
https://www.electronics-lab.com/a-tutorial-for-launching-your-first-balloon/
Here is a nice tutorial about launching you first ballon into space. Also tracking device information is provided. Source is available here: There are a lot of reasons to put together a weather balloon launch. Its a great project for a STEM /STEAM class, it requires planning, electronics and programming, and teamwork. It has a […]
The MCP9600 Thermocouple interface
https://www.electronics-lab.com/the-mcp9600-thermocouple-interface/
by Martin Cooke @ elektormagazine.com: The MCP9600 from Microchip is a single chip solution to convert thermocouple output EMF to degrees Celsius. The chip includes integrated cold-junction compensation and corrects thermocouple non-linearity for the eight most popular types of thermocouple. User-programmable registers in the MCP9600 allow the chip to be configured for various applications including a […]