Editing MetBox (Meteorological Box) (section)

== Description ==
The MetBox is a low cost low maintenance and high accuracy package to measure reliably the main essential meteorological parameters such as wind speed and direction, air temperature, humidity and atmospheric pressure. 

Measurements are sampled by a microcontroller, then encoded and transmitted. The transmission channel used varies depending on the device version. 

=== Version v0 ===
The v0 was developed in August 2024. This revision included:

* An Arduino Micro to sample the measurements
* The Calypso ULP Standard wind sensor, set to uart interface
* BMP280 and SHT40 pressure and humidity sensors, integrated in an [https://shop.m5stack.com/products/env-iv-unit-with-temperature-humidity-air-pressure-sensor-sht40-bmp280?srsltid=AfmBOopkrKIIzp_szCCjrA_S9ohKOxDaMtbRlNIdqRX2rjFj80QTIxMd ENV IV]
* Two communication interfaces were implemented
** A USB interface, extended with an active extender (for monitoring and firmware update)
** A Serial RS485 interface
* A POM housing
* Radiation guards made from PLM print material, with an additional coatin
<gallery mode="packed-hover">
File:MetBox.png|MetBox - Version 0
File:V0 cutView.jpg|MetBox - Version 0 Technical Drawing
File:V0 exploded.jpg|MetBox - Version 0 Exploded view
</gallery>
=== Version v1 ===
Development of the version V1 was completed in May 2025. The changes introduced were:

* The housing was changed. This version is shorter than the previous,the electronics compartment is, however, wider.
* The housing is meant to be printed and assembled with M4 screws for stability. 
* Pow input is connected via a [https://de.rs-online.com/web/p/industrie-automation-steckverbinder/8771154 M12 - 5 wire - panel mount] connector. 
* Sensors are interfaced with an i2c bus. 
* A [https://wiki.seeedstudio.com/Grove_LoRa_E5_New_Version/ Grove - Wio-E5] (uart) is used for data transfer through '''LoRaWAN''' with the  [https://www.taoglas.com/product/860-928mhz-ism-lora-compact-flexible-pcb-antenna/ FXP890.07.0100C] antenna. 
* The controller is an Arduino nano IoT 33. 
<gallery mode="packed-hover">
File:V1B.jpg|MetBox - Version 1
File:A-0042.jpg|MetBox - Version 1 Technical Drawing
File:A-0041A page-0002.jpg|MetBox - Version 1 Bottom assembly
</gallery>

=== Circuit schematic ===
[[File:Metbox_v1_circuit.jpg|frameless]]