for devs

This code sets up and controls a motor using Raspberry Pi GPIO pins. It reads the home position from a log file, moves the motor a specific number of steps, and resets the home position to 0.

save_home_in_log_file.py

@@ -0,0 +1,61 @@
+import time
+from time import sleep
+import RPi.GPIO as GPIO
+
+# Set GPIO mode and disable warnings
+GPIO.setmode(GPIO.BCM)
+GPIO.setwarnings(False)
+
+# Function to write data to a log file
+def write(parameter, value):
+    with open("/home/pi/shared/log/" + parameter + ".log", "w") as file:
+        file.write(str(value))
+
+# Function to load data from a log file
+def load(parameter):
+    with open("/home/pi/shared/log/" + parameter + ".log", "r") as file:
+        parameter = file.read()
+    return parameter
+
+# Motor control pins
+control_pins = [5, 11, 9, 10]
+
+# Load home position counter and increment by 5
+homecounter = str(load("home"))
+stepshome = int(homecounter) + int(5)
+
+# Initialize control pins and set output to 0
+for pin in control_pins:
+    GPIO.setup(pin, GPIO.OUT)
+    GPIO.output(pin, 0)
+
+    # Define halfstep sequence for motor control
+    halfstep_seq = [
+        [1, 0, 0, 1],
+        [0, 0, 0, 1],
+        [0, 0, 1, 1],
+        [0, 0, 1, 0],
+        [0, 1, 1, 0],
+        [0, 1, 0, 0],
+        [1, 1, 0, 0],
+        [1, 0, 0, 0],
+    ]
+
+# Execute motor movement based on halfstep sequence
+for i in range(stepshome):
+    for halfstep in range(8):
+        for pin in range(4):
+            GPIO.output(control_pins[pin], halfstep_seq[halfstep][pin])
+        time.sleep(0.001)
+
+# Clean up GPIO pins
+GPIO.cleanup()
+
+# Reset home position counter and update the log file
+write("home", 0)
+
+# Set message payload to 0
+msg['payload'] = "0"
+
+# Return message
+return msg