copilot

1. VCC (Alimentación)

   • Conecta VCC del sensor a $3V3$ en tu ESP32C3.

2. GND (Tierra)

   • Conecta GND del sensor a $\text{GND}$ en tu ESP32C3.

3. OUT (Salida)

   • Conecta OUT del sensor a uno de los pines analógicos en tu ESP32C3 para leer el valor de presión analógica. Sugiero conectar OUT a $\text{GPIO2\_A0\_D0}$ ya que está etiquetado como A0, lo que sugiere que es un pin analógico adecuado.

• Conectar $MPS20N0040D:\text{VCC}$ a 3V3.
• Conectar $MPS20N0040D:\text{GND}$ a GND.
• Conectar $MPS20N0040D:\text{OUT}$ a GPIO2_A0_D0.

laurabp17

copilot

Cpp
#define PRESSURE_SENSOR_PIN A0  // Define GPIO2_A0_D0 como pin A0

void setup() {
  Serial.begin(115200);  // Inicializar comunicación serial a 115200 baudios
  pinMode(PRESSURE_SENSOR_PIN, INPUT);  // Configurar el pin del sensor de presión como entrada
}

void loop() {
  int sensorValue = analogRead(PRESSURE_SENSOR_PIN);  // Leer el valor analógico del sensor
  float voltage = sensorValue * (3.3 / 4095.0);  // Convertir el valor leído a voltaje (teniendo en cuenta que el ADC del ESP32 tiene una resolución de 12 bits)
  
  // Mostrar el valor del sensor y el voltaje correspondiente
  Serial.print("Sensor Value: ");
  Serial.print(sensorValue);
  Serial.print(" - Voltage: ");
  Serial.println(voltage, 3);  // Mostrar el voltaje con tres decimales

  delay(1000);  // Esperar un segundo antes de la siguiente lectura
}

• PRESSURE_SENSOR_PIN: Se define como A0, que corresponde al pin GPIO2_A0_D0.
• analogRead: Se usa para leer el valor analógico del pin al cual está conectado el sensor.
• Conversión a voltaje: El valor analógico se convierte a voltaje asumiendo que el ADC está configurado para una referencia de 3.3V y tiene una resolución de 12 bits (0-4095).
• Salida Serial: Se imprime tanto el valor analógico como el voltaje convertido en el monitor serial, lo que te permite visualizar los cambios en la presión.

copilot

• Model: Seeed Studio XIAO ESP32C3
• Architecture: RISC-V
• Connectivity: Supports both Wi-Fi and BLE

• The project involves various GPIO (General Purpose Input/Output) pins, each with specific features, suitable for connecting other electronic components or sensors.

• GPIO5_A3_D3: Pin number 4
• GPIO4_A2_D2: Pin number 3
• GPIO2_A0_D0: Pin number 1
• GPIO7_SCL_D5: Pin number 6
• GPIO6_SDA_D4: Pin number 5
• D7_RX_GPIO20: Pin number 8
• GPIO21_TX_D6: Pin number 7
• D10_MOSI_D10: Pin number 11
• D8_SCK_GPIO8: Pin number 9
• D9_MISO_GPIO9: Pin number 10

• 5V: Pin number 14
• 3V3: Pin number 12
• GND: Pin number 13

• Mouser: $4.99, Stock: 1.4K units
• Digi-Key: $4.99, Stock: 3.6K units

copilot

• VIN: Power supply input. Connect to 5V.
• GND: Ground. Connect to GND.
• IN1: Control input 1. Connect to a GPIO pin.
• IN2: Control input 2. Connect to a GPIO pin.
• OUT1: Motor output 1. Connect to one terminal of the DC motor.
• OUT2: Motor output 2. Connect to the other terminal of the DC motor.

• Connect DRV8837:VIN to $5V$.
• Connect DRV8837:GND to $GND$.
• Connect DRV8837:IN1 to $GPIO4\_A2\_D2$.
• Connect DRV8837:IN2 to $GPIO5\_A3\_D3$.
• Connect DRV8837:OUT1 to one terminal of the DC motor.
• Connect DRV8837:OUT2 to the other terminal of the DC motor.

bab000in

copilot

• You're using a generic MAX232 chip with the typical 16-pin configuration.
• The power supply for the MAX232 can be either from the XIAO 3V3 pin (if the MAX232 variant supports 3.3V operations) or 5V, if you are using a level translator.
• Assuming the need for a minimal configuration for RS-232 communication, typically involving one transmitter and one receiver channel.

1. Powering the MAX232:

   • Given that most traditional MAX232 ICs are designed to work with 5V, ensure that you're using a 3.3V-compatible variant like the MAX3232 if you plan to power it directly from the XIAO's 3V3 output. Otherwise, use the 5V pin with appropriate logic level conversion for Tx and Rx lines.
   • Connect MAX232 VCC to XIAO 5V (or 3V3 if using a 3.3V compatible version like MAX3232).
   • Connect MAX232 GND to XIAO GND.

2. TTL Side Connections:

   • Assuming you want to use XIAO's default UART pins for serial communication (GPIO21_TX_D6 for Tx and D7_RX_GPIO20 for Rx are common choices):

     • Connect MAX232 T1IN (Transmitter Input) to XIAO GPIO21_TX_D6.
     • Connect MAX232 R1OUT (Receiver Output) to XIAO D7_RX_GPIO20.

3. RS-232 Side Connections:

   • Connect MAX232 T1OUT to the RS-232 receiver line (e.g., to the pin 2 of a DB9 connector).
   • Connect MAX232 R1IN to the RS-232 transmitter line (e.g., to the pin 3 of a DB9 connector).
   • Don't forget to connect the ground of the RS-232 connector to XIAO GND.

4. Capacitors for Charge Pump: The MAX232 requires four external capacitors (typically 1µF) for its charge pump circuitry.

   • Connect capacitors between MAX232 C1+ and C1-, C2+ and C2-, C3+ and V+, C4+ and GND, according to the MAX232 datasheet specifications.

• Ensure you are using the correct communication protocol and baud rate settings in your code to initiate communication through the UART pins.
• Double-check the MAX232 datasheet for any specific configuration details, especially if you're using a variant or similar IC.
• Depending on your application, additional setup might be required like flow control lines connection if needed.

copilot

copilot

1. ESP32C3
2. LED
3. 220 Ohm resistor (for LED current limiting)
4. Jumper wires
5. Breadboard (for quick prototyping)

1. Connect the `GND` pin of the ESP32C3 to the common ground on your breadboard (i.e., GND rail).
2. Connect the $5V$ pin of the ESP32C3 to the positive rail on your breadboard.
3. Connect the long lead(anode) of the LED to a GPIO pin (for example, `GPIO5_A3_D3`) via a 220 Ohm resistor.
4. Connect the short lead(cathode) of the LED directly to the GND rail of the breadboard.

austinjonesx

copilot

C
#define LED_PIN 0 // D0 or GPIO 2 on ESP32C3

void setup() 
{
    pinMode(LED_PIN, OUTPUT); // Set D0 as output
}

void loop() 
{
    digitalWrite(LED_PIN, HIGH); // Turn the LED on (HIGH is the voltage level)
    delay(1000); // Wait for a second
    digitalWrite(LED_PIN, LOW); // Turn the LED off by making the voltage LOW
    delay(1000); // Wait for a second
}

copilot

• The number of floors the elevator will serve.
• The type and number of sensors and switches needed (e.g., floor sensors, door sensors, emergency stop switches).
• The type of display needed for each floor and inside the elevator.
• The type and capability of the motor used to move the elevator.
• Safety requirements, as elevators need multiple safety mechanisms in place.

• Input Buttons: Connect the buttons for each floor and other controls (like emergency stop, door open/close) to the GPIO pins (let's say GPIO2_A0_D0, GPIO3_A1_D1, GPIO4_A2_D2, GPIO5_A3_D3, GPIO6_SDA_D4, GPIO7_SCL_D5).
• Floor Sensors: Connect the sensors which detect the current floor of the elevator to other GPIO pins (let's assume D7_RX_GPIO20, D8_SCK_GPIO8).
• Display: If it's an LED or LCD, connect this to appropriate SPI/I2C pins (like D10_MOSI_D10, D9_MISO_GPIO9 for SPI).
• Motor Control: Connect the ESP32C3 to a motor driver circuit (using GPIO21_TX_D6 for example), which controls the elevator motor.

emir-muntaqim

if (!now.IsValid())
{
    // Common Causes:
    //    1) the battery on the device is low or even missing and the power line was disconnected
    Serial.println("RTC lost confidence in the DateTime!");
}

// send the data
Serial.println("Before sending data");
esp_err_t result = esp_now_send(broadcastAddress, (uint8_t *)&send_Data, sizeof(send_Data));
Serial.println("After sending data");
// check for successful transmission
if (result == ESP_OK) {
  Serial.println("Data sent successfully!");
} else {
  Serial.println("An error occurred while sending data.");
}

// waits for the button to be released to avoid sending the same data multiple times
while (BTN_State == 1) {
  BTN_State = digitalRead(BTN_Pin);
  delay(10);
}

snprintf_P(datestring, 
        countof(datestring),
        PSTR("%02u/%02u/%04u %02u:%02u:%02u"),
        dt.Month(),
        dt.Day(),
        dt.Year(),
        dt.Hour(),
        dt.Minute(),
        dt.Second() );
Serial.print(datestring);

copilot

Cpp
void OnDataRecv(const uint8_t * mac, const uint8_t *incomingData, int len) {
  memcpy(&receive_Data, incomingData, sizeof(receive_Data));

  ...
  // Existing Code
  
  // New Code for 3 LEDs
  int currentDay = now.Day();
  int currentHour = now.Hour();
  int currentMinute = now.Minute();
  int currentSecond = now.Second();

  // For LED at GREEN_LED_PIN, let's say we want it to turn on at 10th day of the month, at 10:02
  if (currentDay == 10 && currentHour == 10 && currentMinute == 2){
    digitalWrite(GREEN_LED_PIN, receive_Data.led);
  }
  // For LED at YELLOW_LED_PIN, let's say we want it to turn on at 20th day of the month, at 10:04
  if (currentDay == 20 && currentHour == 10 && currentMinute == 4){
    digitalWrite(YELLOW_LED_PIN, receive_Data.led);
  }
  // For LED at RED_LED_PIN, let's say we want it to turn on at 30th day of the month, at 10:06
  if (currentDay == 30 && currentHour == 10 && currentMinute == 6){
    digitalWrite(RED_LED_PIN, receive_Data.led);
  }
}

copilot

mommy224984