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Assumptions:graph TD; A[Power Supply] --> B[Voltage Regulator] B --> C1[Microcontroller: MCU] C1 --> D1[Sensor: SENSOR_xxx] C1 --> D2[Actuator: ACTUATOR_xxx] C1 --> E1[Communication Module: COM_xxx] C1 --> F1[User Interface: UI_xxx]
Explanation of Block Diagram:graph TD; A["Power Supply (5V Output)"] --> B[3.3V Regulator] B --> C1[ESP32 Microcontroller] C1 --> D1["BME280 Sensor 1 (I2C)"] C1 --> D2["BME280 Sensor 2 (I2C)"] C1 --> E[TCS34725 Sensor] C1 --> F[PWM Signal to Level Shifter] F --> G[5V PWM Signal] G --> H[Dual MOSFET Motor Controller] H --> I1[Fan Control] I1 -->|Tachometer Output| C1 C1 --> J["Relay Module (Optically Isolated)"] J --> K1[Heater Control] J --> K2[Humidifier Control] J --> K3[Dehumidifier Control] C1 --> L[Web Server / Firebase Connectivity]
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Magnificent Beige Matter Compiler
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|---|---|---|
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diamond91
copilot
diamond91
copilot
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Microcontroller:
- ESP32-WROOM-32
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Sensors:
- 2x BME280 (I2C for temperature, humidity, and pressure sensor)
- TCS34725 (I2C color sensor for PAR/PPFD calculation)
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Actuators and Control:
- PWM output level shifter (3.3V to 5V) for fan and light control
- Dual MOSFET motor controller for fan control
- Tachometer feedback from fans for RPM control
- 3x Relays with optical isolation for controlling 240V appliances (humidifier, dehumidifier, heater)
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Communications:
- Web server and/or Firebase setup for user configuration and control
High-Level Connections-
I2C Communication:
- Connect ESP32:I2C_SDA to BME280_1:SDA, BME280_2:SDA, and TCS34725:SDA
- Connect ESP32:I2C_SCL to BME280_1:SCL, BME280_2:SCL, and TCS34725:SCL
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PWM Outputs and Level Shifting:
- Connect ESP32:PWM1 to LevelShifter:Input1 for fan control
- Connect ESP32:PWM2 to LevelShifter:Input2 for light control
- Connect LevelShifter:Output1 to MotorController:PWM_IN
- Connect MotorController:FAN_Tachometer to ESP32:GPIO_input for RPM monitoring
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Relays (with Optical Isolation):
- Connect ESP32:Relay1_Control to OptoIsolator:Relay1_Input
- Connect ESP32:Relay2_Control to OptoIsolator:Relay2_Input
- Connect ESP32:Relay3_Control to OptoIsolator:Relay3_Input
Automated Climate Control Logic- Sensors: Use BME280 to calculate Vapor Pressure Deficit (VPD).
- Control Logic: Use ESP32 to adjust fan speed/RPM and relay states based on sensor data.
- User Interface: Implement web server or Firebase to allow user configuration of temperature, humidity, VPD targets, and manual override.
Next Steps