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A project log for LORA for BRESSER 5 in1 Weather Station (MAKE IOT)

Make a dumb Granny Weather station Smart with LORA and store data in the Cloud

ulrichUlrich 07/24/2022 at 19:400 Comments

To receive the signals produced by the Bresser Weather Station I designed in Kicad a small Hardware layout.

This Board consist of a ESP32-PicoD4 Microcontroller, an RGB LED, 7 GPIO Pins, a Voltage supply and a LORA CHIP RFM95.

Hint: This Board is optional and not mandatory. You may use any other Board e.g. from Lilygo which has a valid SX127x Chip from Semtech.

The benefit of my own design is the formfactor.. I wanted it to be as small as possible. 

You may find the Schematics here: 

Hardware FIles

Right now you need to add anCC1101 Receiver to this Hardware. You may find these Boards cheap on Ebay

I am about to check weather this CC1101 Chip can be removed and everything is handled by the RFM95 LoRa Chip alone.

The Bad/ugly thing about this CC1101 Module is the PinDistance is 2mm while most development Boards have a pin distance of 2.54 mm.

To Connect this CC1101 To the Board with a standard 3.3V, GND, 4GPIOs you may need one of these adapter board that I found on Amazon.

They adapt the distance to your needs.

Next you may solder these Pins straight forward: Pinning might be found here Link:

Luckily these fits to most headers on development Boards

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