[mircemk] had previously built a frequency counter using an Arduino, with a useful range up to 6 MHz. Now, they’ve implemented a new design on a far more powerful STM32 chip that boosts the measurement rangeup to a full 30 MHz.That makes it a perfect tool for working with radios in...
The most important part for the accuracy of the frequency counter is the time base setting circuit – crystal resonator X1 and capacitors C4 and C5. C4 and C5 values can be between 33pF and 62pF and the crystal frequency can be fine tuned with them. The input of the schematic is feed ...
I have a frequency counter that's very accurate. Let me check with that. Of course, I don't know how accurate the Arduino clock is to start with ;-( khoih-progadded a commit that references this issue on Oct 12, 2022 v1.2.0 to fix accuracy bug... Verifiedb13aa2d khoih-prog com...
I have made a few of this type of frequency counters. Long ago I made one with an ATMEGA328 (the same controller as there is in an Arduino), later with ARM micro controllers from ST. The latest was made with an STM32F407 clocked at 168 MHz. But now I wondered what if I do the...
(" o - turn on a simple counter as the overflow function");Serial.println(" n - turn off the overflow function");Serial.println(" b - print the counter from the oveflow function");Serial.println(); FrequencyTimer2::setPeriod(200); FrequencyTimer2::enable(); }// variables shared ...
I found this code which I think works with two counters and threshold) but not frequence measure, just counter and threshholds for counters. Maybe this could lead us to a combined solution of dual PCT + frquency measurement? https://github.com/mikegofton/ESP32PulseCounterfor...
This project is nice and small frequency counter that reads frequency from 1 Hz to 50 MHz that I have modified from original designed by Weeder Technologies . I have designed new PCB to fit with 16X1 LCD and change source code for compatible with new sma
FeelElecFY6200 Series DDSSignalGenerator is one dual channel function/arbitrary waveform generator with high-performance, cost-effective and multi-functional ,which integrates the functions of function signal generator, arbitrary waveform generator, pulse signal generator, noise generator, counter and freque...
If you have an old “Racal-Dana 199x” frequency counter or similar 10 MHz internally referenced gear with a poor tolerance “standard quartz crystal oscillator” or bit better “temperature compensated crystal oscillator” (TCXO) you could upgrade to a high stability timebase “oven controlled cr...
frequency become necessary. For instance, the 5 Hz output will give you positive pulses of 100 ms width, thus when the frequency of a 10 MHz signal is tested, a gate pulse of this length might allow through 11500,000 cycles of the signal to the counter, presenting a display of 10,...