May-06-2021, 11:56 PM
I am developing a tkinter application in order to grab my arduino serial data.
This is the data that are being fed to the pc:
This is the code snippet that handles this:
For example, the first value (3.70), will be placed in the sensor0[] list, the second in the sensor1[] list and so on.
My idea on doing this is to:
1. Search the incoming stream for the characters "TE = ". When you find them grab the incoming data until the newline character, and convert them to int (save them to a temporary variable)
2. When this happens, a flag called readyForJoin will be set to True.
3. Then search incoming stream for the characters "CE = "
4. When you find them, grab the next characters until you find a space character, and cast it to float. (save them to a temporary variable)
5. If readyForJoin == True, then add the second value, to the array specified by the first value we grabbed.
I want to ask more experience people, is this a good enough algorithm? Is there a better way?
If this is a decent strategy, then how exactly do i parse the incoming data on the fly and search for specified strings, in the received data? Do i have to buffer them first?
This is the data that are being fed to the pc:
---------------------------------------- SENSOR COORDINATE = 0 MEASURED RESISTANCE = 3.70 kOhm ---------------------------------------- ---------------------------------------- SENSOR COORDINATE = 1 MEASURED RESISTANCE = 3.70 kOhm ---------------------------------------- ---------------------------------------- SENSOR COORDINATE = 2 MEASURED RESISTANCE = 3.69 kOhm ----------------------------------------If you are curious, this is the arduino (C warning) code that manages all the printing:
Serial.println("----------------------------------------");
Serial.print("SENSOR COORDINATE = ");
Serial.println(sensor_coord);
Serial.print("MEASURED RESISTANCE = ");
double resistanse = ((period * GAIN_VALUE * 1000) / (4 * CAPACITOR_VALUE)) - R_BIAS_VALUE;
Serial.print(resistanse);
Serial.println(" kOhm");Up till now, i have a tkinter application that grabs the data, and prints them onto a text frame.This is the code snippet that handles this:
def readSerial():
global after_id
while ser.in_waiting:
try:
ser_bytes = ser.readline() #read data from the serial line
ser_bytes = ser_bytes.decode("utf-8")
text.insert("end", ser_bytes)
except UnicodeDecodeError:
print("UnicodeDecodeError")
else:
print("No data received")
after_id=root.after(50,readSerial)I want to be able to parse the sensor coodrinate [0-7] and then parse the value for the specific coordinate and place it in the appropriate list.For example, the first value (3.70), will be placed in the sensor0[] list, the second in the sensor1[] list and so on.
My idea on doing this is to:
1. Search the incoming stream for the characters "TE = ". When you find them grab the incoming data until the newline character, and convert them to int (save them to a temporary variable)
2. When this happens, a flag called readyForJoin will be set to True.
3. Then search incoming stream for the characters "CE = "
4. When you find them, grab the next characters until you find a space character, and cast it to float. (save them to a temporary variable)
5. If readyForJoin == True, then add the second value, to the array specified by the first value we grabbed.
I want to ask more experience people, is this a good enough algorithm? Is there a better way?
If this is a decent strategy, then how exactly do i parse the incoming data on the fly and search for specified strings, in the received data? Do i have to buffer them first?