A DIY A4 Laser Engraver using ATmega328
https://www.electronics-lab.com/a-diy-a4-laser-engraver-using-atmega328/
Davide Gironi demonstrates his DIY A4 laser engraver made from a scanner and a printer using ATmega328: This “Get Ready For Win98″ Laser Engraving Machine it’s built using an old scanner, and an old printer. A laser engraving machine is a tool that uses lasers to engrave an object. A DIY A4 Laser Engraver using […]
Fake TV Security Light
https://www.electronics-lab.com/fake-tv-security-light-2/
RonM9 @ instructables.com has build a fake led TV security light based on Arduino and NeoPixel WS2812 LED ring. Fast & Easy Fake-TV Light module built for under $5; with enhanced features. With the use of this device you can go on vacation leaving your home with a lived in appearance and thus an added layer […]
Using Geophone Sensors to detect seismic events
https://www.electronics-lab.com/using-geophone-sensors-to-detect-seismic-events/
JTAdams @ jtadams.ca has build an interface for his geophones using Raspberry Pi and managed to record some seismic events on this. He writes: I have always been fascinated with how seismic detection can see what is under the ground. So much so, that I decided to try it for myself. It works by generating […]
Control accurate incremental voltage steps with a rotary encoder
https://www.electronics-lab.com/control-accurate-incremental-voltage-steps-with-a-rotary-encoder/
by Anthony Smith @ edn.com: Experimenting with an HF oscillator, I needed to control the varactor diode voltage in precise increments over a 2V-10V range. A buffered potentiometer was the obvious choice, and connecting two pots in series to give coarse/fine control (or using a multiturn pot) would offer improved control over the varactor voltage. However, […]
CAN Transceiver for Automotive
https://www.electronics-lab.com/can-transceiver-for-automotive/
The TJA1042 of NXP Semiconductor is a CAN transceiver with high-speed capabilities that provides a physical link between physical transmission medium and the protocol controller. The transceiver is designed for high-speed (up to 1Mbps) CAN applications in the automotive industry, providing the differential transmit and receive capability to a microcontroller with a CAN protocol controller. […]
C.H.I.P. vs Pi Zero: Which Sub-$10 Computer Is Better?
https://www.electronics-lab.com/c-h-i-p-vs-pi-zero-which-sub-10-computer-is-better/
David Scheltema @ makezine.com compares the C.H.I.P computer with Pi Zero to find our which is the best option for your next project: Now that there are two capable, sub-$10 computers for Makers — the $5 Pi Zero and the $9 C.H.I.P. — the debate will rage online over which board is faster, cheaper, and the […]
Solar powered Particle Photon environment monitor
https://www.electronics-lab.com/solar-powered-particle-photon-environment-monitor/
FutureSharks @ github.com has another great project on it’s repository, it’s a solar powered particle photon enviroment monitor. Here is the Photon code and hardware details to build a solar powered environment monitor. It uses a combo module of 3 separate sensors that are read via I2C protocol to periodically measure and record: Temperature Humidity Light […]
HiFi Passive Preamp
https://www.electronics-lab.com/hifi-passive-preamp/
FutureSharks @ github.com has build a very nice HiFi passive preamplifier controlled by an Arduino board. It has the following features: Volume control and input selection via encoder and Apple remote. Uses a 256 step R2R relayed based attenuator. Completely passive. Only 5V power required. Adafruit NeoPixel shows volume level with colour. Sleep mode with low […]
MagSpoof – Wireless credit card/magstripe spoofer
https://www.electronics-lab.com/magspoof-wireless-credit-cardmagstripe-spoofer/
MagSpoof is a device that can spoof/emulate any magnetic stripe or credit card you currently own. It can work “wirelessly”, even on standard magstripe/credit card readers, by generating a strong electromagnetic field that emulates a traditional magnetic stripe card. Note: MagSpoof does not enable you to use credit cards that you are not legally authorized […]
ESP8266 Weather Station
https://www.electronics-lab.com/esp8266-weather-station/
blog.squix.ch has published there code for a ESP8266 based weather station. More details here: It is not yet working as smoothly as I want it to work but maybe some of you can help me getting rid of the nasty issues that were bugging me for the last few weeks. The README on github contains […]