Circuit Documentation
Summary
The circuit in question appears to be designed for environmental sensing, specifically for monitoring soil moisture levels and detecting vibrations. It utilizes multiple ESP8266 NodeMCU microcontrollers, which are Wi-Fi capable development boards based on the ESP8266 chipset, to interface with a Soil Moisture Sensor, a Soil Moisture Interceptor, a SW-420 Vibration Sensor, and a DHT11 Sensor V2 for temperature and humidity readings.
Component List
ESP8266 NodeMCU
- Description: A Wi-Fi capable development board based on the ESP8266 chipset.
- Pins: D0, D1, D2, D3, D4, 3V3, GND, D5, D6, D7, D8, RX, TX, A0, RSV, SD3, SD2, SD1, CMD, SD0, CLK, EN, RST, VIN
Soil Moisture Sensor
- Description: A sensor that measures the volumetric content of water in the soil.
- Pins: 2, GND, VCC
Soil Moisture Interceptor
- Description: A device that likely interfaces with the Soil Moisture Sensor to provide analog and digital outputs.
- Pins: AO, DO, GND, VCC
SW-420 Vibration Sensor
- Description: A sensor that detects vibrations and provides a digital output.
- Pins: VCC, Ground, Digital output
DHT11 Sensor V2
- Description: A sensor that measures ambient temperature and humidity.
- Pins: GND, DAT, VCC
Wiring Details
ESP8266 NodeMCU
- A0 connected to Soil Moisture Interceptor AO
- GND connected to Soil Moisture Interceptor GND, Soil Moisture Sensor GND, SW-420 Vibration Sensor Ground, DHT11 Sensor V2 GND
- 3V3 connected to Soil Moisture Interceptor VCC, Soil Moisture Sensor VCC, SW-420 Vibration Sensor VCC, DHT11 Sensor V2 VCC
- D0 connected to SW-420 Vibration Sensor Digital output
Soil Moisture Sensor
- GND connected to Soil Moisture Interceptor GND
- VCC connected to Soil Moisture Interceptor VCC
Soil Moisture Interceptor
- AO connected to ESP8266 NodeMCU A0
- GND connected to ESP8266 NodeMCU GND, Soil Moisture Sensor GND
- VCC connected to ESP8266 NodeMCU 3V3, Soil Moisture Sensor VCC
SW-420 Vibration Sensor
- Digital output connected to ESP8266 NodeMCU D0
- VCC connected to ESP8266 NodeMCU 3V3
- Ground connected to ESP8266 NodeMCU GND
DHT11 Sensor V2
- DAT connected to ESP8266 NodeMCU A0
- GND connected to ESP8266 NodeMCU GND
- VCC connected to ESP8266 NodeMCU 3V3
Documented Code
No code was provided for the microcontrollers in the circuit. For the circuit to function as intended, embedded code for the ESP8266 NodeMCU microcontrollers is required. This code would typically initialize the sensors, read data from them, and possibly send the data to a remote server or display it locally.
Please note that the documentation above is based on the provided information. For a complete and functional circuit, additional details such as power supply connections, specific wiring instructions, and embedded code are necessary.