From 94203da32939e02476e2c747718e1d5d4eeb238a Mon Sep 17 00:00:00 2001
From: Edvin <edj7467@gmail.com>
Date: Fri, 2 May 2025 11:57:35 +0200
Subject: Added LED and photo transistor

---
 arduino/arduino.ino |  6 +++---
 main.py             | 16 +++++++++++++---
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/arduino/arduino.ino b/arduino/arduino.ino
index 9e38b13..708fcec 100644
--- a/arduino/arduino.ino
+++ b/arduino/arduino.ino
@@ -16,6 +16,9 @@ LiquidCrystal_I2C lcd(0x27, 20, 4);
 int emptySpace = 0;
 
 void setup() {
+  pinMode(LED_PIN, OUTPUT);
+  digitalWrite(LED_PIN, HIGH);
+
   pinMode(D1, OUTPUT);
   pinMode(D2, OUTPUT);
   pinMode(D3, OUTPUT);
@@ -25,9 +28,6 @@ void setup() {
   digitalWrite(D3, LOW);
   digitalWrite(D4, LOW);
 
-  pinMode(LED_BUILTIN, OUTPUT);
-  digitalWrite(LED_BUILTIN, LOW);
-
   Serial.begin(115200);
 
   lcd.init();
diff --git a/main.py b/main.py
index 53f5679..68c4139 100755
--- a/main.py
+++ b/main.py
@@ -5,12 +5,20 @@ import serial
 import select
 from time import sleep
 import math
+import RPi.GPIO as GPIO
+
+LED = 17 # Light emitting diode
+PT = 27 # Phototransistor
+
+GPIO.setmode(GPIO.BCM)
+GPIO.setup(PT, GPIO.IN)
+GPIO.setup(LED, GPIO.OUT)
 
 # Open serial port to Arduino Nano
-NANO = serial.Serial('/dev/ttyUSB1', 9600, timeout=1)
+NANO = serial.Serial('/dev/ttyUSB1', 115200, timeout=1)
 sleep(2)
 
-BluetoothProcess = subprocess.Popen(["python", "-u", "/home/pi/TNE107-RPI/bt.py"], stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE, text=True)
+BluetoothProcess = subprocess.Popen(["python", "-u", "/home/pi/TNE107-RPI/bt.py"], stdout=subprocess.PIPE, text=True)
 
 # Waiting on connection
 NANO.write(b"Bluetooth up\n")
@@ -47,6 +55,7 @@ curDir = 0.0
 desDir = 0.0
 
 if bto.find("Connected") != -1:
+    GPIO.output(LED, True)
     nanoBtMessage = "Bluetooth connected " + bto[13:].translate({ord(c): None for c in ':'}) # Address to send to nano
     NANO.write(nanoBtMessage.encode())
     print(nanoBtMessage)
@@ -56,12 +65,13 @@ if bto.find("Connected") != -1:
     print(f"LIDAR PID: {LIDARProcess.pid}")
 
     # DWM Process Code
-    DWMProcess = subprocess.Popen(["python", "-u", "/home/pi/TNE107-RPI/DWM.py"], stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE, text=True)
+    DWMProcess = subprocess.Popen(["python", "-u", "/home/pi/TNE107-RPI/DWM.py"], stdout=subprocess.PIPE, text=True)
     print(f"DWM PID: {DWMProcess.pid}")
 
     sleep(5)
     
     while bto != "1000":
+        print(GPIO.input(PD))
         btReady, _, _ = select.select([BluetoothProcess.stdout], [], [], 0.0005)
 
         if btReady:
-- 
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