SparkFun RedBoard Plus Development Board
https://www.electronics-lab.com/sparkfun-redboard-plus-development-board/
SparkFun RedBoard Plus Development Board is an Arduino-compatible board that is similar to an Arduino Uno with many extra perks. This DEV-1858 development board utilizes a handy Qwiic Connect System that means no soldering or shields are required to connect it to the rest of the system. The RedBoard Plus board includes the hardware peripherals like 22x digital I/O […]
Buck converter PCB design replaces TO-220 regulators
https://www.electronics-lab.com/buck-converter-pcb-design-replaces-to-220-regulators/
Linear voltage regulators are used to maintaining a steady output voltage. They are step-down converters where the input voltage is always higher than the output voltage. The output voltage can be adjusted by external resistors. 78xx series is a very popular linear voltage regulator series. 78xx series, however, do not require external components for setting […]
Tiny Isolated Dimmer with Linearly Corrected Output
https://www.electronics-lab.com/tiny-isolated-dimmer-linearly-corrected-output/
Dimmers provide a way to reduce the power of resistive elements like heaters and light features by changing the waveform of the voltage applied to them. There are different approaches to the development/implementation of dimmers and there are a lot of how-to guides and projects based on them, but the general efficiency of these solutions […]
Low voltage power supply
https://www.electronics-lab.com/low-voltage-power-supply-unit/
Dilshan Jayakody has build a low voltage power supply that is able to provide four outputs: 1.5V, 1.8V, 2.5V and 3.3V. This power supply can be used to power low voltage mcus, CPLDs and analog ICs. He writes: In this post we introduce simple and flexible, regulated low voltage power supply unit. This power supply […]
Dekatron as Internet speed indicator
https://www.electronics-lab.com/dekatron-as-internet-speed-indicator/
spritesmods.com has build a interner speed indicator based on a Dekatron tube, the result is great. As most electronic engineers and hobbyists do, I have a great respect for the earlier ways of controlling electrons, before it was found out that silicon could be used to miniaturize everything a thousandfold. It is amazing that things […]