![Opto-isolated laser controller build Opto-isolated laser controller build](https://www.electronics-lab.com/wp-content/uploads/2016/08/pic-IMG_7304-600.jpg)
Opto-isolated laser controller build
Scott Harden built his own opto-isolated laser controller and wrote a post on his blog detailing its assembly: My goal was to utilize a free hardware output line to signal to a device that I build to modulate the laser in a special way. This way there would be no modification to any...
Continue Reading![App note: Solid-State Relays App note: Solid-State Relays](https://www.electronics-lab.com/wp-content/uploads/2016/08/an_vishay_appnote56.png)
App note: Solid-State Relays
Solid-state relays introduction from Vishay, (PDF) MOSFET SSRs feature an optocoupler construction, but have a pair of MOSFETs on the output instead of a phototransistor. A pair of source-coupled MOSFETs emulate an electromechanical relay by providing bidirectional switch capability...
Continue Reading![MAX232: The classic IC lives on since 1988 MAX232: The classic IC lives on since 1988](https://www.electronics-lab.com/wp-content/uploads/2016/08/1988-0623_Maxim_MAX232-1-735x1024.jpg)
MAX232: The classic IC lives on since 1988
by Len Sherman @ edn.com: The June 23, 1988 issue of EDN included a Maxim Design News insert where we asked "Who in their right mind would choose a computer interface standard that uses ±12V supplies, requires expensive connectors, works over a limited distance, is error prone,...
Continue Reading![FARMBOT Open-source CNC Farming Machine FARMBOT Open-source CNC Farming Machine](https://www.electronics-lab.com/wp-content/uploads/2016/07/Farmbot.png)
FARMBOT Open-source CNC Farming Machine
FarmBot is an open-source CNC farming machine designed for small-scale precision food production. Similar to any CNC milling machine, FarmBot hardware employs linear guides in the X, Y and Z directions for tooling. FarmBot tools include: seeder, watering nozzle, camera, weeder and...
Continue Reading![Mumai – Control Anything Using your Muscles Mumai – Control Anything Using your Muscles](https://www.electronics-lab.com/wp-content/uploads/2016/07/MumaiBoard.jpg)
Mumai – Control Anything Using your Muscles
Alvaro Villoslada designed an open-source muscle-machine to control any kind of electronic device through the myoelectric (EMG) signals. The name of this project is Mumai and it is published on hackaday.io. “The Professional EMG systems are very expensive, cumbersome and...
Continue Reading![Simple two-transistor circuit lights LEDs Simple two-transistor circuit lights LEDs](https://www.electronics-lab.com/wp-content/uploads/2016/07/led-drive-circuit.png)
Simple two-transistor circuit lights LEDs
Barry Tigner @ edn.com has a design idea on how to power a LED from a 1.5V battery using two easily available transistors. A previous Design Idea describes a circuit that uses an astable multivibrator to drive an LED (Reference 1). The circuit in Figure 1 uses a simpler alternative...
Continue Reading![Google’s quantum computer just accurately simulated a molecule for the first time Google’s quantum computer just accurately simulated a molecule for the first time](https://www.electronics-lab.com/wp-content/uploads/2016/07/dwave-quantum_1024-1024x415.jpg)
Google’s quantum computer just accurately simulated a molecule for the first time
Google's engineers just achieved a milestone in quantum computing: they’ve produced the first completely scalable quantum simulation of a hydrogen molecule. by DAVID NIELD @ sciencealert.com Researchers working with the Google team were able to accurately simulate the energy of...
Continue Reading![Measure Weights Using OpenScale from Sparkfun Measure Weights Using OpenScale from Sparkfun](https://www.electronics-lab.com/wp-content/uploads/2016/07/OpenScale.png)
Measure Weights Using OpenScale from Sparkfun
Sparkfun has a simple-to-use and open source solution for measuring weight and temperature. All you need is a load cell hooked up with OpenScale. You may find a variety of high quality weight sensors to be used in this project on Flintec load cells. OpenScale uses HX711, a 24-bit...
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