2 Digit Digital Up Counter Using PIC16F1825
https://www.electronics-lab.com/2-digit-digital-counter-using-pic16f1825/
The Two Digit UP Counter project built using PIC16F1825 Microcontroller from Microchip, CAT4016 serial to display driver IC from ON-Semiconductor and two 7 Segment common anode 0.5 Inch display. Project works using two switches S3 and S2, third switch has no use. When switch S3 is pressed it increments the count on display by one […]
Fluke/Philips PM66xx Frequency Counter OCXO Upgrade
https://www.electronics-lab.com/flukephilips-pm66xx-frequency-counter-ocxo-upgrade/
In this post Dan Watson documents an OCXO upgrade board he designed for the Fluke/Philips PM66xx line of frequency counters. A few months ago I purchased a Philips PM6674 frequency counter on eBay. It’s an older 9 digit counter with two channels that has a maximum input frequency of 550MHz. The design feels dated compared […]
UP/DOWN counter with memory using PIC16F88
https://www.electronics-lab.com/updown-counter-with-memory/
Here is an up-down counter based on PIC16F88 and 7-segment display. The counter is using SMD components and features a RS-232 interface. This is a simple digital counter with a serial rs-232 and a 7 segment display, i started this project to count items on some shelfs, but it can be used for anything, it […]
100MHZ Frequency Counter with PIC16F628A
https://www.electronics-lab.com/100mhz-frequency-counter-with-pic16f628a/
This project shows how to build a very simple yet very useful tool that every DIY enthusiast should have in his lab: a 100MHz+ frequency counter. The schematic is fairly simple and straightforward and uses a PIC16F628A microcontroller for measuring frequency and a high speed comparator for signal amplification and conditioning. The microcontroller uses its internal 4MHz […]
Touchscreen-controlled Arduino Geiger Counter
https://www.electronics-lab.com/touchscreen-controlled-arduino-geiger-counter/
by Toumal @ github.com: A touchscreen-controlled Geiger Counter for Arduino. Requires a Radiation Watch Pocket Geiger sensor, a ITDB02 Display from SainSmart and an Arduino Mega. Software needs my fork of the RadiationWatch library, the ITDB02 library as well as the UTouch library Touchscreen-controlled Arduino Geiger Counter – [Link]
Arduino Mini Geiger Counter
https://www.electronics-lab.com/arduino-mini-geiger-counter/
by paulindallas @ instructables.com: Last Black Friday, the big sale day that comes right after Thanksgiving, I came across a sale on the Electronic Goldmine web site for a Geiger counter kit and tube for about $30. Now I always wanted to play with a Geiger counter, even as a kid back in the 50’s when […]
The DigiRule – a digital ruler
https://www.electronics-lab.com/the-digirule-a-digital-ruler/
Brad has designed a cool binary PCB ruler, The DigiRule: So I made the DigiRule! – The DigiRule is a 15cm (6″) ruler with which is marked in binary digits rather than decimal. It has a number of built in digital functions including: logic gates, flip flops, counters etc. The DigiRule – a digital ruler […]