Circuit Documentation
Summary of the Circuit
This circuit integrates an ESP32 microcontroller with an HC-SR04 ultrasonic sensor, a DHT22 temperature and humidity sensor, and a GPS NEO 6M module. The ESP32 serves as the central processing unit, interfacing with the sensors and the GPS module to collect data. The HC-SR04 is used for distance measurement, the DHT22 for environmental data, and the GPS NEO 6M for location tracking. The circuit is designed to operate on a 3.3V power supply, which is provided by the ESP32's 3V3 pin.
Component List
ESP32 (30 pin)
- Description: A microcontroller with Wi-Fi and Bluetooth capabilities, featuring a wide range of GPIO pins.
- Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, Vin, D23, D22, TX0, RX0, D21, D19, D18, D5, TX2, RX2, D4, D2, D15, 3V3
HC-SR04 Ultrasonic Sensor
- Description: A sensor for measuring distance via ultrasonic sound waves.
- Pins: VCC, TRIG, ECHO, GND
DHT22
- Description: A sensor for measuring ambient temperature and humidity.
- Pins: GND, VCC, DAT
GPS NEO 6M
- Description: A module for receiving GPS signals and determining geographical location.
- Pins: VCC, RX, TX, GND
Wiring Details
ESP32 (30 pin)
- D23 connected to HC-SR04 TRIG
- D22 connected to HC-SR04 ECHO
- TX2 connected to GPS NEO 6M RX
- RX2 connected to GPS NEO 6M TX
- D4 connected to DHT22 DAT
- GND connected to GND of all other components
- 3V3 connected to VCC of all other components
HC-SR04 Ultrasonic Sensor
- TRIG connected to ESP32 D23
- ECHO connected to ESP32 D22
- VCC connected to ESP32 3V3
- GND connected to ESP32 GND
DHT22
- DAT connected to ESP32 D4
- VCC connected to ESP32 3V3
- GND connected to ESP32 GND
GPS NEO 6M
- RX connected to ESP32 TX2
- TX connected to ESP32 RX2
- VCC connected to ESP32 3V3
- GND connected to ESP32 GND
Documented Code
No code has been provided for the microcontrollers in the circuit. The documentation of the code would typically include a description of the functionality, setup, and main loop, along with any functions or libraries used. Since no code is available, this section cannot be completed at this time.