update

labs/lab-3_1.md

@@ -111,7 +111,7 @@ Whenever you perform a calibration curve, or want to read accurate values to the
 
 - [Link to TMP36 Spec Sheet](https://drive.google.com/file/d/10Lu2-s9MYqh0s0O6Nkxy8E_LDwDpnZ7T/view?usp=sharing)
 
-Just like we did in the last lab, we now need to plug in the TMP36 to an analog pin on the Arduino, and read it using `analogRead()` and `Serial.println()`. Add this to the code used for measuring the battery voltage with comma-separated values. (Hint: You can use `Serial.print()` to print values without a newline character between them, which may help you print csv integers to the serial monitor for testing. Then you can just use `Serial.print(",");` to add a comma between the values).
+Just like we did in the last lab, we now need to plug in the TMP36 to an analog pin on the Arduino, and read it using `analogRead()` and `Serial.println()`. Add this to the code used for measuring the battery voltage with comma-separated values. (Hint: You can use `Serial.print()` to print values without a newline character between them, which may help you print csv integers to the serial monitor for testing. Then you can just use `Serial.print(",");` to add a comma between the values. The last line you print, which will be the last sensor column of your csv matrix, should use `Serial.println()` in order to make a new line for the next data read).
 
 Here is the wiring diagram again for your reference: