MuMo - Node_draft
Introduction: MuMo - Node_draft
### UPDATE 10-03-2021 // the latest information / updates will be available on the github page:
https://github.com/MoMu-Antwerp/MuMo
What is MuMo?
What is MuMo?
MuMo is a collaboration between product development (a department of the University of Antwerp) under the name of Antwerp Design Factory and the Antwerp Fashion Museum. The goal of the project is to build an open source IOT monitor system based on a LoRa network.
* It should be easy to set up.
* It should be easy to assemble.
* It must be scalable in terms of application area.
What the project MuMo contains:
MuMo Node
The MuMo Node is a low power device on AA batteries that can measure and transmit environmental parameters over a LoRa network. The parameters are temperature, humidity, ambient pressure and brightness.
*** The MuMo node can be extended with other functionalities to be used in other applications.***
MuMo Gatway
The MuMo Gateway is an active LoRa gateway that can receive and forward LoRa signals from the Node device over the internet. In this project the gateway will also be equipped with the same sensors of the MuMo Node device, air dust sensor and an bug trap that can be remotely monitored with a camera.
*** The gateway does not need to be equipped with sensors or a camera. It can also only serve to provide a LoRa network (non measuring gaetway).***
MuMo Dashboard
The MuMo Dashboard is provided to create an overview web application of the network that is being created. It is made user-friendly with different functionalities. The dashboard can be fully customized to the wishes and application of the user.
Github page:
https://github.com/MoMu-Antwerp/MuMo
Instructable pages:
MuMo_Node: https://www.instructables.com/MuMo-Node/
MuMo_Gateway: https://www.instructables.com/MuMo-Node/
Required Tools:
* 3D printer with filament
* Solder iron / solder
* Small cutting plier
* Hot glue gun (or other fixation tools)
* Small screwdriver
Step 1: #Hardware - Ordering Parts
Parts to order:
See the github page for a recent overview:
https://github.com/jokohoko/Mumo/blob/main/Shopping_list.md
Step 2: #Hardware - 3D Printed Parts
Parts to 3D print:
* NODE_Main_Housing
* NODE_Battery_Tray
* NODE_Backcover
See the github page for the latest STL files:
https://github.com/jokohoko/Mumo/tree/main/STL_NODE
Print filament:
* PETG (preferred and more durable)
* PLA
General print settings:
* No support needed
* Infill not necessary
* 0.2 layer height
* 3 outside perimeters (for strength and durability)
Step 3: #Hardware - Prepare the Battery Tray
Parts:
* 2 x battery case (Side node: You can also use just one battery case for 3 AA batteries but the live range will be shorter!)
* 1 x JST 2.0 power connector (included with the Seeed LoRaWan board)
* 3D printed part: battery tray
Instructions - Soldering: (Warning HOT - be careful!)
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Solder all the red cables together
2. Solder all the black cables together.
3. Make sure that the soldering work is protected with insulation material. This can be a sleeve that you pull over the cable before soldering or insulation tape that you apply afterwards.
Instructions - Fixation of the battery holder:
1. Glue the battery holders into the battery tray so that the cables are facing to the side with the cutout (see picture). This can be done with hot glue (preferred), double sided tape, silicone, second glue,...
Step 4: #Hardware - Prepare LoRaWan Board
Part:
* LoRaWan board
Instruction:
Before removing the led on the board, connect the board to the computer and check if the power led light up. After removing the led we have no power indication anymore.
In order to reduce the power consumption of the Lorawan shield we should remove two LEDs that are purely informative. The power (PWR) and the charge indication (CHG) led.
Be extremely careful not to damage the board during this process! Use a sharp set of pliers.
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