Just having an issue with sending data collected from sensors in an excel sheet on the raspberry pi to a mobile phone device. The code works but its not consistent and there is a lot of connection dropping/ failures.
The whole system works as RaspPi collects sensor data -> Data is stored in spreadsheet -> Phone connects to bluetooth module connected to RaspPi -> Phone sends command over bluetooth to ask for data to be sent line by line
Could anyone see a problem with how I've coded this and recommend fixes or alternative ways to code this?
Bluetooth connection made using the import serial library
Sections of code that deal with the bluetooth connection and data sending:
The whole system works as RaspPi collects sensor data -> Data is stored in spreadsheet -> Phone connects to bluetooth module connected to RaspPi -> Phone sends command over bluetooth to ask for data to be sent line by line
Could anyone see a problem with how I've coded this and recommend fixes or alternative ways to code this?
Bluetooth connection made using the import serial library
Sections of code that deal with the bluetooth connection and data sending:
Code:
if __name__ == '__main__':path = r"/home/pi/Scans/"scans = os.listdir(path)ser = serial.Serial('/dev/ttyS0', 115200, timeout=1)ser.flushInput()ser.flushOutput()while True: line = ser.readline().decode('UTF-8').rstrip() ser.reset_input_buffer() ############## Request scan list ################# # Command = scans if ('scans') in line: ser = serial.Serial('/dev/ttyS0', 115200, timeout=1) ser.write(('[').encode('UTF-8')) filelist = [ f for f in os.listdir(newpath) if f.endswith(".csv") ] for f in filelist: with open((newpath + '/' + f), 'r', encoding="utf-8", errors="ignore") as scraped: final_line = scraped.readlines()[-1][0:3] if (',') in final_line: final_line = final_line[0:2] ser.write(('[' + str(f) + ', ' + str(final_line) + ']').encode('utf-8')) ser.write((']\r\n').encode('UTF-8')) ############## Select scan number ################# # Put as many as necessary if ('01') in line: number = '01' ############## Request file ################# # Command = download if ('download') in line: if number !=0: ser = serial.Serial('/dev/ttyS0', 115200, timeout=1) with open("/home/pi/Scans/Scan " + number + ".csv", mode = 'r')as file: csvFile = csv.reader(file) ser.write(('[').encode('UTF-8')) for lines in csvFile: time.sleep(0.01) ser.write((str(lines) + '\n').encode('utf-8')) ser.write((']\n').encode('UTF-8'))Statistics: Posted by Padduzaj — Tue Mar 11, 2025 1:10 pm