RHOMBIO Ground Temperature and Humidity Sensor Pelion Ready¶

The Folowing Guide Helps you to build a connected Sensor using the L476DMW1K with a Ground Sensor SHT21. This Document will explain how to build a product implementing a Box and a Battery.

Also you will be able to use two diferent ways to comunicate with the cloud - Easy Wifi Connection - Easy NB-IOT connection All of them pelion ready.

Items Description:¶

• IP65 Box ( Takachi ) Link to buy
• Lipo Battery 4V2 1200Mah
• Deimos Board
• STM32L476 Master Module
• ESP8266 Slave Wifi Module
• 4 Screws
• Stuffing Box
• SHT21 I2C sensor
• DC Connector
• In the NB-IOT version we are going to use swap the ESP8266 Slave Wifi Module with:
• Quectel BC95 NB-IOT Slave Module

Tools Needed to build the device:¶

• Welder
• Tin
• Screwdriver
• Drill
• Wires
• A computer

In the software Side here you have the two solutions suite, Pelion Ready. - Repositorio RHOMBIO_L476_SHT21_WIFI - Link Repositorio RHOMBIO_L476_SHT21_NB_BC95

Getting Started!¶

1. Let's prepare the box Holes and configuration. FOTO de las Perforaciones de la caja
2. The Deimos Board is configured to fit in the box. FOTO DEIMOS Y CAJA
3. In the Final Assembly the battery can be placed in the Slot 2 Space.
4. Once we have assembled the parts inside box. take out everything and let's go to sold the Sensor and DC connector Wires. imagen de pines de conexion COnexion del sensor Esquema del Sensor Conexion del Conector DC Esquema del conector
5. Let's go to flash the device

• Download or import sources into compiler
• Set your pelion Credentials
• Set your KEY device
• Compile the project

Don't forget to configure the board into your Mbed Compiler, Mbed Cli or PlatformIO¶