DIY ​Homeassistant zigbee Weather station

1. Required Components and Assembly
      Hardware Components:

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  CC2530 Zigbee Module – Used for wireless communication via the Zigbee protocol.
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  BME280 Sensor – Measures temperature, humidity, and atmospheric pressure.
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  Rain Sensor – A tipping bucket rain gauge with a reed switch for measuring rainfall.
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  Anemometer – A device with a reed switch for measuring wind speed
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  Wind Direction Sensor – Uses a potentiometer or reed switches with resistors to detect wind direction.
  
• ○
  CC Debugger – Used to flash the firmware onto the CC2530 module.
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  Power Supply – A stable 3.3V power source to power the system.

Wiring
1. CC2530 and BME280:

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  Connect the BME280 sensor to the CC2530 via the I2C bus.
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  Follow PTVO’s instructions to wire SCL and SDA pins properly.

2. ​Rain Sensor:

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  Connect the reed switch of the rain sensor to P05 on the CC2530.
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  Configure P05 as a digital input with a pull-up resistor.
  
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  Connect the other end of the switch to GND.
  

3. Anemometer:

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  Connect the reed switch of the anemometer to P07 on the CC2530.
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  This pin will count pulses generated by the spinning anemometer.

4. Wind Direction Sensor:
                   *  This sensor typically works with either:

• ○
  A potentiometer, which provides an analog voltage output corresponding to the wind direction.
  
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  A set of reed switches and resistors, which give a discrete voltage level based on wind vane position.

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  If using a potentiometer, connect its output to an analog input (P06) on the CC2530.
  
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  If using reed switches and resistors, connect them to P06 and configure this pin as an analog input.

5. Power Supply:

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  Ensure that the entire system is powered by a stable 3.3V power source.
  

2. Programming
                                      Flashing the CC2530 Firmware

1. Prepare the Firmware:

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  Download the PTVO configurable firmware from this link.
  
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  This firmware allows you to configure the CC2530 module according to your needs.

2. ​​Configure the Firmware:

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  Enable I2C for BME280 and set the sensor’s address (usually 0x76 or 0x77).
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  Set P05 as a digital input for the rain sensor with a pull-up resistor.
  
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  Set P03 as an analog input for the wind direction sensor.
  
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  Set P07 as a pulse counter for the anemometer.
  
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  And other settings as shown in the picture
  

3. ​Flash the Firmware to CC2530:

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  Use the CC Debugger and TI Flash Programmer to upload the firmware.
  

3. Integration with Home Assistant
                                      Flashing the CC2530 Firmware

1. ​Install and Configure Zigbee2MQTT:

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  Ensure Zigbee2MQTT is installed.
  

2. Pair the Device with Zigbee2MQTT:

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  After flashing the firmware and powering the device, it should be detected by your Zigbee network.
  
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  Check the Zigbee2MQTT logs for the new device.
  

3. Add Sensors to Home Assistant:

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  The exact settings of sensors.yaml , configuration.yaml can be found here
  

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  And now you can create conditions, triggers, automations, etc. in the zones you created. Good luck :D