In the same way as the LCD project this frequency counter circuit uses TMR1 in 16 bit counter mode to count the input signal edges. Counter overflows are accumulated to give the total count in multiples of 65536. Adding the current value of the counter at the end gives the total count. Specification of the […]
50MHz 7 segment frequency counter using PIC16F877A Read More »
A frequency counter is a useful addition to an engineer’s toolbox and you can create the design described on this page for free. All you need is a PIC microcontroller (or any microcontroller that has a high speed timer input module) and a 2 line LCD display (the standard HD44780 one is the one used
Frequency Counter using PIC16F877A Microcontroller Read More »
Background It is time to update the frequency counter again. A frequency counter is one of the most important measuring tool we need as homebrewers of RF electronic. This frequency counter has very high performance and still is very easy to build and to use. Anyone can build it and have fun. The counter is
2.5 GHz Frequency counter using PIC16F870 Read More »
Caption (copied from the NorCal meeting listed in the links below): IK3OIL Frequency counter built by Wayne McFee. This is from IK3OIL’s web site, and the cost of the counter was about $2, minus the display, which was about $7. Wayne got the source was www.shopeio.com. They are located in Gardenia, California. Design and Code
IK3OIL 16F84 PIC Frequency Counter Files Read More »
This is a port by Peter Cousens to the PIC 16F84 of the 50Mhz Frequency counter kit {originally available} from Weeder Technologies . Since it uses a base PIC that is easily programmable, and provides a usefull bit of bench test equipment at very low cost, it makes an ideal PIC learning project. If you
The Weeder Frequency Counter using PIC16F84 Read More »
Circuit schematic PCB HEX code, V1.11 (operates with 4,000 MHz quartz) Hex code, V1.12 (operates with 4,1943 MHz quartz) PIC config bits Photo – Top view Photo – Bottom view Photo – Latest PCB version with TO-92 style 78L05 housing – Top view (132 kbyte) Photo – Latest PCB version with TO-92 style 78L05
50 MHz frequency counter, voltage meter & SWR/PWR indicator using PIC16C71 Read More »
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
100MHz frequency counter with PIC16F628A – LCD Display Read More »
