Reading Sensor Values from Myoware Muscle Sensor

[malielizabeth]

I'm trying to read the sensor values from the Myoware muscle sensor using the Atmega328p microcontroller. I've done tests before and they were successful. However, after a while of having the circuit connected and not using the sensor, I've come back to read values again but now I'm not getting any useful readings.

void setup() {
 
  Serial.begin(9600);
}


void loop() {
 
      int sensorValue = analogRead(A3);  // read the input on analog pin 3 and store in sensorValue

      Serial.println(sensorValue); 

      delay (100);
}

[UKHeliBob]

Please do not post screen shots of code. Follow the advice in How to get the best out of this forum and post the full sketch using code tags

[malielizabeth]

void setup() {
 
  Serial.begin(9600);
}


void loop() {
 
      int sensorValue = analogRead(A3);  // read the input on analog pin 3 and store in sensorValue

      Serial.println(sensorValue); 

      delay (100);
}

[UKHeliBob]

That code is so simple that it is difficult to image that it is wrong

However, it is possible that you have a hardware or wiring problem

• is the sensor connected between A3 and GND ?
• are all 4 connections sound ?
• disconnect the sensor, run the code and touch the connector you unplugged from the sensor. Does the reading change ?
• disconnect the sensor from the board, run the code and touch pin A3. Does the reading change ?
• try a different analogue pin

[malielizabeth]

This is the result of disconnecting the sensor and touching the connector repetitively

[malielizabeth]

Having the sensor connected to Analog Pin4 and adjusting the code to read from that pin, gave this result:

This is also the same result with connection to pin A3
I am not sure what else to try, and this project is due very soon. Please help.

[sahilnair]

Hey ,

Any progress, i am using Arduino UNO mc. Followed the same as mentioned here
How to Use EMG Muscle Sensor to Control Anything (MyoWare) - YouTube

Getting the same output that you are receiving. Stuck on the same, no progress.