Circuit Documentation

Summary

This circuit involves a Raspberry Pi 4B, a DHT22 temperature and humidity sensor, and a 10 Ohm resistor. The Raspberry Pi 4B serves as the main controller, interfacing with the DHT22 sensor to read temperature and humidity data. The resistor is used in the circuit to limit current.

Component List

Raspberry Pi 4B

• Description: A powerful single-board computer used for various applications including IoT, robotics, and more.
• Pins: 3V3, 5V, GPIO2, GPIO3, GND, GPIO4, GPIO14, GPIO15, GPIO17, GPIO18, GPIO27, GPIO22, GPIO23, GPIO24, GPIO10, GPIO9, GPIO25, GPIO11, GPIO8, GPIO7, ID_SD, GPIO5, GPIO6, GPIO12, GPIO13, GPIO19, GPIO16, GPIO26, GPIO20, GPIO21, ID_SC, TR01_TAP, TR00_TAP, TR03_TAP, TR02_TAP, RUN, GLOBAL_EN
• Purpose in Circuit: Main controller

DHT22

• Description: A temperature and humidity sensor.
• Pins: +, Out, -
• Purpose in Circuit: Sensing temperature and humidity

Resistor

• Description: A 10 Ohm resistor used to limit current.
• Pins: pin1, pin2
• Properties:
  • Resistance: 10 Ohms
• Purpose in Circuit: Current limiting

Comment

• Description: Placeholder for comments in the circuit design.
• Pins: None
• Purpose in Circuit: Not applicable

Wiring Details

Raspberry Pi 4B

• GPIO4 is connected to:

  • Resistor pin1
  • Resistor pin2
  • DHT22 Out

• 5V is connected to:

  • DHT22 +

• GND is connected to:

  • DHT22 -

DHT22

• Out is connected to:

  • Resistor pin1
  • Resistor pin2
  • Raspberry Pi 4B GPIO4

• + is connected to:

  • Raspberry Pi 4B 5V

• - is connected to:

  • Raspberry Pi 4B GND

Resistor

• pin1 is connected to:

  • Resistor pin2
  • Raspberry Pi 4B GPIO4
  • DHT22 Out

• pin2 is connected to:

  • Resistor pin1
  • Raspberry Pi 4B GPIO4
  • DHT22 Out

Code

No code is provided for this circuit.