login
David @ robotroom.com build a microcontroller based LED tester with LCD display that shows the LED voltage, the current limit in mA, the desired led voltage and the calculated resistor value. The LED tester is based on ATtiny84 mcu which performs all the measurements and calculations and updates the display. Build details on the link below.
The adjustment trimpots are on the end of the tester. The trimpot with the thumb dial is to indicate the target circuit voltage (usually 5 V or 3.3 V). The other trimpot requires a screwdriver, because it controls current, which I usually want to keep at 20 mA.
LED Tester with LCD Display – [Link]
Please follow and like us:
RELATED POSTS
31 March, 2023 Palm-sized SI-111-N Fanless 4K Digital Signage Player
16 May, 2019 Kickstarter DIY Portable Soldering Iron Kit at $45
13 June, 2021 Component carriers replace flexible printed circuit boards in linear measuring systems
8 September, 2022 Barometric absolute pressure sensor BMP581 from Bosch at Rutronik
3 January, 2023 ADLINK releases COM Express and COM-HPC modules based on Intel 13th Gen Core processors – delivering up to 24 cores
19 April, 2018 ADXL356/357 MEMS accelerometers feature low noise, low power solution for Wireless Condition Monitoring nodes via @OEMsecrets @arrowglobal
Subscribe
Login
0 Comments
