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45 lines
1.6 KiB
Python
45 lines
1.6 KiB
Python
#!/usr/bin/env python3
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###############################################################################
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# Program: Send Strings to an Arduino From a Raspberry Pi
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# File: send_strings_to_arduino.py
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# Description: This program runs on a Raspberry Pi. It sends strings
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# to Arduino. It also receives the string it sent
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# and prints it to the screen. This provides bi-directional (2-way) communication
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# between Arduino and Raspberry Pi.
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# Author: Addison Sears-Collins
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# Website: https://automaticaddison.com
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# Date: July 5, 2020
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###############################################################################
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import serial # Module needed for serial communication
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import time # Module needed to add delays in the code
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# Set the port name and the baud rate. This baud rate should match the
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# baud rate set on the Arduino.
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# Timeout parameter makes sure that program doesn't get stuck if data isn't
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# being received. After 1 second, the function will return with whatever data
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# it has. The readline() function will only wait 1 second for a complete line
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# of input.
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ser = serial.Serial('/dev/ttyACM1', 9600, timeout=1)
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# Get rid of garbage/incomplete data
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ser.flush()
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# Infinite loop
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i = 0
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while (1):
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i+=1
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send_string = ("Data\n")
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# Send the string. Make sure you encode it before you send it to the Arduino.
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ser.write(send_string.encode('utf-8'))
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# Do nothing for 500 milliseconds (0.5 seconds)
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time.sleep(0.02)
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# Receive data from the Arduino
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receive_string = ser.readline().decode('utf-8').rstrip()
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# Print the data received from Arduino to the terminal
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print(receive_string) |