Introduction: Frequency Counter With Arduino
This is a simple and cheap arduino based frequency Counter cost less than 4$ it been very useful to measure small circuits
Step 1: Parts for the Project
1.adruino uno or nano
2. Jumper cables
3. 16*2 lcd
4. Ic 555
5. 1uf cap
Step 2: Solder Pins to Lcd
Step 3: Connection to Arduino
Follow up the schematic and connect lace and potentiometer to arduino
Step 4: Copy the Same Code to the Adruino Sketch and Upload
#include , <LiquidCrystal.h>
LiquidCrystal lcd(2, 3, 4, 5, 6, 7);
const int pulsePin = 8; // Input signal connected to Pin 8 of Arduino
int pulseHigh; // Integer variable to capture High time of the incoming pulse
int pulseLow; // Integer variable to capture Low time of the incoming pulse
float pulseTotal; // Float variable to capture Total time of the incoming pulse
float frequency; // Calculated Frequency
void setup() { pinMode(pulsePin,INPUT);
lcd.begin(16, 2);
lcd.setCursor(0,0);
lcd.print("stark labs");
lcd.setCursor(0,1);
lcd.print(" Freq Counter ");
delay(5000); }
void loop() { lcd.setCursor(0,0);
lcd.print("Frequency is ");
lcd.setCursor(0,1);
lcd.print("stark labs ");
pulseHigh = pulseIn(pulsePin,HIGH);
pulseLow = pulseIn(pulsePin,LOW);
pulseTotal = pulseHigh + pulseLow; // Time period of the pulse in microseconds frequency=1000000/pulseTotal; // Frequency in Hertz (Hz)
lcd.setCursor(0,1);
lcd.print(frequency);
lcd.print(" Hz");
delay(500); }
Step 5: Making of Frequency Generator
simple follow this schematic and connect those connections properly many people have problem in that 1uf capacitor will give 800hz-40khz and 101 capacitor will give 50hz-4khz
Step 6: Finalizing the Project
After you make the 2 schematic connect them together as shown in schematic and this is link for demo of the device https://www.youtube.com/watch?v=t25wPzo6lWc
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3 Comments
I would add the code to be able to be downloaded, In the steps, it's all one solid jumble.
thnks for suggestion i will make it change
... also seems to be missing the library included... (lcd.h?)