Good day can someone help us to troubleshoot our issue our medicine dispensing and logging system ?
- We’ve built a device using HTML, CSS, JavaScript, Python, and an Arduino Mega 2560 Mini for hardware.
- The Raspberry Pi 4B is connected via serial communication pins 4-13.
- Regardless of the medicine type input by the user, pin 13 always activates the servo motor for dispensing.
- We’ve verified the Python code, and it sends the right data.
Heres the are the adruino and phyton code:
Phyton:
from flask_cors import CORS
import serial
import time
import json # Import the json module
app = Flask(__name__)
CORS(app)
@app.route('/to_arduino', methods=['POST'])
def to_arduino():
data = request.json
print("Data received from JS:", data)
# Determine which function to call based on the quantity value
quantity = data.get('quantity')
if quantity == '1':
send_to_arduino_quantity_1(data)
elif quantity == '2':
send_to_arduino_quantity_2(data)
else:
print("Unknown quantity value received")
return "Data received successfully"
def send_to_arduino_quantity_1(data):
"""Function to send data to Arduino when quantity is 1."""
try:
# Open a serial connection to Arduino
ser = serial.Serial('COM8', 9600, timeout=10)
print("Connection Successful")
# Convert data dictionary to a JSON string
data_str = json.dumps(data)
# Store the start time
start_time = time.time()
# Run the loop until 5 seconds have passed
while time.time() - start_time < 3:
# Send the encoded data to Arduino
ser.write(data_str.encode())
# Sleep for a short time before sending the data again
time.sleep(0.5) # Adjust sleep time as needed
print(data_str)
print("Sending data for quantity 1 completed")
except Exception as e:
print(f"Error during data sending for quantity 1: {e}")
finally:
# Close the serial connection
ser.close()
print("Serial connection closed for quantity 1")
def send_to_arduino_quantity_2(data):
"""Function to send data to Arduino when quantity is 2."""
try:
# Open a serial connection to Arduino
ser = serial.Serial('COM8', 9600, timeout=10)
print("Connection Successful")
# Convert data dictionary to a JSON string
data_str = json.dumps(data)
# Store the start time
start_time = time.time()
# Run the loop until 5 seconds have passed
while time.time() - start_time < 5:
# Send the encoded data to Arduino
ser.write(data_str.encode())
# Sleep for a short time before sending the data again
time.sleep(0.1) # Adjust sleep time as needed
print(data_str)
print("Sending data for quantity 2 completed")
except Exception as e:
print(f"Error during data sending for quantity 2: {e}")
finally:
# Close the serial connection
ser.close()
print("Serial connection closed for quantity 2")
if __name__ == '__main__':
app.run(host='localhost', debug=True)
Adruino:
const int LED_PIN_1 = 13;
const int LED_PIN_2 = 11;
const int LED_PIN_3 = 9;
const int LED_PIN_4 = 7;
const int LED_PIN_5 = 5;
const int LED_PIN_6 = 4;
const int LED_PIN_7 = 6;
const int LED_PIN_8 = 8;
const int LED_PIN_9 = 10;
const int LED_PIN_10 = 12;
String received; // Define the 'received' variable globally
void setup() {
Serial.begin(9600); // Start the serial communication at 9600 baud rate
pinMode(LED_PIN_1, OUTPUT); // Set LED pins as output
pinMode(LED_PIN_2, OUTPUT);
pinMode(LED_PIN_3, OUTPUT);
pinMode(LED_PIN_4, OUTPUT);
pinMode(LED_PIN_5, OUTPUT);
pinMode(LED_PIN_6, OUTPUT);
pinMode(LED_PIN_7, OUTPUT);
pinMode(LED_PIN_8, OUTPUT);
pinMode(LED_PIN_9, OUTPUT);
pinMode(LED_PIN_10, OUTPUT);
}
void loop() {
if (Serial.available() > 0) { // Check if there is incoming data
received = Serial.readStringUntil('n'); // Read the data until newline
Serial.println(received); // Send back a confirmation message
messageConditioning(); // Blink and rotate the LEDs upon successful connection
}
}
void messageConditioning() {
// Bioflu
if (received .equals( "{"medicineType": "BIOFLU", "quantity": "1"}")) {
bioflu_1();
} else if (received .equals( "{"medicineType": "BIOFLU", "quantity": "2"}")) {
bioflu_2();
}
// Paracetamol
else if (received .equals( "{"medicineType": "PARACETAMOL", "quantity": "1"}")) {
paracetamol_1();
} else if (received .equals( "{"medicineType": "PARACETAMOL", "quantity": "2"}")) {
paracetamol_2();
}
// Ambroxol
else if (received .equals( "{"medicineType": "AMBROXOL", "quantity": "1"}")) {
ambroxol_1();
} else if (received .equals( "{"medicineType": "AMBROXOL", "quantity": "2"}")) {
ambroxol_2();
}
// Dequadin
else if (received .equals( "{"medicineType": "DEQUADIN", "quantity": "1"}")) {
dequadin_1();
} else if (received .equals( "{"medicineType": "DEQUADIN", "quantity": "2"}")) {
dequadin_2();
}
// Solmux
else if (received .equals( "{"medicineType": "SOLMUX", "quantity": "1"}")) {
solmux_1();
} else if (received .equals( "{"medicineType": "SOLMUX", "quantity": "2"}")) {
solmux_2();
}
// Alaxan
else if (received .equals( "{"medicineType": "ALAXAN", "quantity": "1"}")) {
alaxan_1();
} else if (received .equals( "{"medicineType": "ALAXAN", "quantity": "2"}")) {
alaxan_2();
}
// Mefenamic
else if (received .equals( "{"medicineType": "MEFENAMIC", "quantity": "1"}")) {
mefenamic_1();
} else if (received .equals( "{"medicineType": "MEFENAMIC", "quantity": "2"}")) {
mefenamic_2();
}
// Bonamine
else if (received .equals( "{"medicineType": "BONAMINE", "quantity": "1"}")) {
bonamine_1();
} else if (received .equals( "{"medicineType": "BONAMINE", "quantity": "2"}")) {
bonamine_2();
}
// Diatabs
else if (received .equals("{"medicineType": "DIATABS", "quantity": "1"}")) {
diatabs_1();
} else if (received .equals( "{"medicineType": "DIATABS", "quantity": "2"}")) {
diatabs_2();
}
// Betadex
else if (received .equals( "{"medicineType": "BETADEX", "quantity": "1"}")) {
betadex_1();
} else if (received .equals( "{"medicineType": "BETADEX", "quantity": "2"}")) {
betadex_2();
}
// Default case
else {
allLightsOn();
}
}
// Bioflu Output
void bioflu_1() {
digitalWrite(LED_PIN_1, HIGH);
delay(500);
digitalWrite(LED_PIN_1, LOW);
delay(500);
}
void bioflu_2() {
for (int i = 0; i < 2; i++) {
digitalWrite(LED_PIN_1, HIGH);
delay(500);
digitalWrite(LED_PIN_1, LOW);
delay(500);
}
}
void paracetamol_1() {
digitalWrite(LED_PIN_2, HIGH);
delay(500);
digitalWrite(LED_PIN_2, LOW);
delay(500);
}
void paracetamol_2() {
for (int i = 0; i < 2; i++) {
digitalWrite(LED_PIN_2, HIGH);
delay(500);
digitalWrite(LED_PIN_2, LOW);
delay(500);
}
}
// Ambroxol Output
void ambroxol_1() {
digitalWrite(LED_PIN_3, HIGH);
delay(500);
digitalWrite(LED_PIN_3, LOW);
delay(500);
}
void ambroxol_2() {
for (int i = 0; i < 2; i++) {
digitalWrite(LED_PIN_3, HIGH);
delay(500);
digitalWrite(LED_PIN_3, LOW);
delay(500);
}
}
// Dequadin Output
void dequadin_1() {
digitalWrite(LED_PIN_4, HIGH);
delay(500);
digitalWrite(LED_PIN_4, LOW);
delay(500);
}
void dequadin_2() {
for (int i = 0; i < 2; i++) {
digitalWrite(LED_PIN_4, HIGH);
delay(500);
digitalWrite(LED_PIN_4, LOW);
delay(500);
}
}
// Solmux Output
void solmux_1() {
digitalWrite(LED_PIN_5, HIGH);
delay(500);
digitalWrite(LED_PIN_5, LOW);
delay(500);
}
void solmux_2() {
for (int i = 0; i < 2; i++) {
digitalWrite(LED_PIN_5, HIGH);
delay(500);
digitalWrite(LED_PIN_5, LOW);
delay(500);
}
}
// Alaxan Output
void alaxan_1() {
digitalWrite(LED_PIN_6, HIGH);
delay(500);
digitalWrite(LED_PIN_6, LOW);
delay(500);
}
void alaxan_2() {
for (int i = 0; i < 2; i++) {
digitalWrite(LED_PIN_6, HIGH);
delay(500);
digitalWrite(LED_PIN_6, LOW);
delay(500);
}
}
// Mefenamic Output
void mefenamic_1() {
digitalWrite(LED_PIN_7, HIGH);
delay(500);
digitalWrite(LED_PIN_7, LOW);
delay(500);
}
void mefenamic_2() {
for (int i = 0; i < 2; i++) {
digitalWrite(LED_PIN_7, HIGH);
delay(500);
digitalWrite(LED_PIN_7, LOW);
delay(500);
}
}
// Bonamine Output
void bonamine_1() {
digitalWrite(LED_PIN_8, HIGH);
delay(500);
digitalWrite(LED_PIN_8, LOW);
delay(500);
}
void bonamine_2() {
for (int i = 0; i < 2; i++) {
digitalWrite(LED_PIN_8, HIGH);
delay(500);
digitalWrite(LED_PIN_8, LOW);
delay(500);
}
}
// Diatabs Output
void diatabs_1() {
digitalWrite(LED_PIN_9, HIGH);
delay(500);
digitalWrite(LED_PIN_9, LOW);
delay(500);
}
void diatabs_2() {
for (int i = 0; i < 2; i++) {
digitalWrite(LED_PIN_9, HIGH);
delay(500);
digitalWrite(LED_PIN_9, LOW);
delay(500);
}
}
// Betadex Output
void betadex_1() {
digitalWrite(LED_PIN_10, HIGH);
delay(500);
digitalWrite(LED_PIN_10, LOW);
delay(500);
}
void betadex_2() {
for (int i = 0; i < 2; i++) {
digitalWrite(LED_PIN_10, HIGH);
delay(500);
digitalWrite(LED_PIN_10, LOW);
delay(500);
}
}
void allLightsOn() {
for (int i = 0; i < 2; i++) {
digitalWrite(LED_PIN_1, HIGH);
digitalWrite(LED_PIN_3, HIGH);
digitalWrite(LED_PIN_5, HIGH);
digitalWrite(LED_PIN_7, HIGH);
digitalWrite(LED_PIN_9, HIGH);
delay(1000);
digitalWrite(LED_PIN_1, LOW);
digitalWrite(LED_PIN_3, LOW);
digitalWrite(LED_PIN_5, LOW);
digitalWrite(LED_PIN_7, LOW);
digitalWrite(LED_PIN_9, LOW);
digitalWrite(LED_PIN_2, HIGH);
digitalWrite(LED_PIN_4, HIGH);
digitalWrite(LED_PIN_6, HIGH);
digitalWrite(LED_PIN_8, HIGH);
digitalWrite(LED_PIN_10, HIGH);
delay(1000);
digitalWrite(LED_PIN_2, LOW);
digitalWrite(LED_PIN_4, LOW);
digitalWrite(LED_PIN_6, LOW);
digitalWrite(LED_PIN_8, LOW);
digitalWrite(LED_PIN_10, LOW);
}
}
Thanks in advance!
We tried printing the values that will be sent to adruino and the values that are recieved by adruino and the datas matched . We just dont know what error is , we eveb tried making it an if and if else conditional statement but no luck the cervo in pin 13 is still the only one moving regardless of user input
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