Circuit Documentation
Summary
This document provides a detailed overview of a circuit that includes an ESP32 microcontroller, a DHT11 temperature and humidity sensor, and an MQ135 gas sensor. The ESP32 serves as the central processing unit, interfacing with the sensors to collect environmental data.
Component List
ESP32
- Description: A powerful microcontroller with integrated Wi-Fi and Bluetooth capabilities.
- Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, VIN, 3V3, D15, D2, D4, RX2, TX2, D5, D18, D19, D21, RX0, TX0, D22, D23, BOOT
DHT11
- Description: A basic, low-cost digital temperature and humidity sensor.
- Pins: DATA, GND, VCC
MQ135
- Description: A gas sensor used for detecting a wide range of gases, including CO2.
- Pins: VCC, GND, A0, D0
Wiring Details
ESP32
- D34 is connected to A0 of the MQ135.
- D26 is connected to DATA of the DHT11.
- GND is connected to GND of both the MQ135 and the DHT11.
- VIN is connected to VCC of both the MQ135 and the DHT11.
DHT11
- DATA is connected to D26 of the ESP32.
- GND is connected to GND of the ESP32.
- VCC is connected to VIN of the ESP32.
MQ135
- A0 is connected to D34 of the ESP32.
- GND is connected to GND of the ESP32.
- VCC is connected to VIN of the ESP32.
Code Documentation
sketch.ino
void setup() {
}
void loop() {
}
documentation.txt
This document provides a comprehensive overview of the circuit, including the components used, their wiring details, and the code running on the ESP32 microcontroller.