copilot

graph TD;
    U3[PIR Sensor Module - PIR203A-D0] --> D[Output - D];
    U3 --> S[Sense Pin - S];
    U3 --> G[Ground - G];
    D -->|Signal| MCU1[Microcontroller/Processor];
    S -->|Configuration/Adjustment| ADC1["Analog-to-Digital Converter (if needed)"];

    classDef component fill:#f9f,stroke:#333,stroke-width:2px;
    U3,class component;
    D,class component;
    S,class component;
    G,class component;
    MCU1,class component;
    ADC1,class component;

• U3 is the PIR sensor module.
• D represents the digital output pin, which provides the sensor's output signal.
• S is the sense pin, often used for signal sensitivity adjustment or connection to an ADC.
• G is the ground connection.
• MCU1 is a generic block representing the microcontroller or processor that processes the output signal.
• ADC1 symbolizes an ADC needed if the sense pin is used for any configuration requiring analog-to-digital conversion.

copilot

• DHT11:
  • Temperature Range: 0 to 50 °C
  • Humidity Range: 20% to 80%
  • Humidity Accuracy: ±5%
  • Temperature Accuracy: ±2 °C
• DHT22:
  • Temperature Range: -40 to 80 °C
  • Humidity Range: 0% to 100%
  • Humidity Accuracy: ±2%
  • Temperature Accuracy: ±0.5 °C

copilot

• Enable Pin: U1
  • The EN pin is usually connected to a pull-up resistor. Check datasheet or reference designs to confirm that a pull-up resistor (typically 10kΩ) is needed.
• Reset Pin: U1
  • The RST pin typically requires a pull-up resistor to ensure it stays high when not actively reset. A common value is 10kΩ.

• DHT11 (Temperature and Humidity Sensor): This does not have reset or enable pins requiring pull resistors in standard usage.
• PIR203A-D0 (PIR Sensor): Similarly, this does not have reset or enable pins that generally require pull resistors.

1. Check the NodeMCU-12E ESP8266 datasheet or characteristic details to confirm the need for an external pull-up resistor on the EN and RST pins.
2. Add a 10kΩ pull-up resistor to $U1:EN$ (Pin 12).
3. Add a 10kΩ pull-up resistor to $U1:RST$ (Pin 13).
4. Verify the wiring in your schematic to ensure these connections are made.