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RouterOS & ARM config files
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PCB gerber files
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Web administration files
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Settings instructions
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Follow instructions in LR2_Quick_Settings.md file
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That instructions are enough for LR2 complete easy settings
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Mikrotik Routerboard RB951Ui-2nD (https://routerboard.com/RB951Ui-2nD)
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SeedStudio BeagleBone Green (https://beagleboard.org/green)
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IMST iC880A (http://www.wireless-solutions.de/products/long-range-radio/ic880a.html)
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Routerboard configuration in /routeros/routerboard_configuration.md file.
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Routeros backup files: /routeros/lorrier.rsc and /routeros/lorrier.backup
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BBG configuration in /bbg configuration/bbg_configuration.md file.
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You can update your BBG by latest image. Image flashing instructions are in /bbg configuration/bbg_flashing.md file. Be sure you have also the Routerboard updated by latest backup file.
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LR2 Images download in /bbg configuration/bbg_images.md file.
Issue: BBG freezes from time to time, ie. it stops responding after some time in service. BBG system apparently freezes and GW stops receiving and sending payload. The BBG cannot be communicated, web administration is not available. The other GW systems (Routerboard) are in normal use.
Cause of the problem: LR2 IoT concentrator consists of a BBG + IC880a tandem. This whole system is powered by USB-UART converter, which is connected to USB port of Mikrotik Routerboard. Under certain circumstances, especially when transmission from the IC880a is initiated, the peak consumption of BBG + IC880a tandem is greater than the maximum consumption threshold of some chips used for the USB-UART converter in LR2 (eg FTDI FT232RL). In this case, some USB-UART chips can initiate a PWREN # sequence to check the power consumption of the connected devices. Some external logic has the ability to power itself down into a low current state by monitoring the PWREN# signal. For external logic that cannot power itself down in this way, those chips provides a simple but effective method of turning off power during the USB suspend mode. When this happens in LR2, the BBG gets a shutdown command and turns off. Alternatively, the power supply for BBG + IC880a tandem from the USB-UART converter is turned off.
Solution:
There are two possibilities to solve this problem:
a) replace an existing USB-UART converter that feeds BBG + IC880a with another type that has a maximum power threshold set to a higher level. Replacing the USB-UART converter is very simple and inexpensive.
b) use a simple USB Pin Header cable instead of a USB-UART converter. Since USB is only used for power (other features using TX and RX connectors have not yet been used in LR2), it is only possible to use power connectors (VCC + 5V and GND) directly from USB.
Note: For both cases, the LR2 top cover must be removed of course. No effort is needed to eject the USB-UART converter. On the RouterBoard side, just pull out the USB connector. On the BBG + IC880a side, the connectors are inserted into the pins on the Lorrier Bl PCB (Lora Adapter) and secured with a drop of glue from the melt gun. It needs to be loosened and the individual connectors pinned out gently. When replacing with a new USB-UART converter or USB pin Header cable it is necessary to keep the correct polarity!
The Lorrier company changed its ownership structure and disappeared as a manufacturer of IoT devices in 2019. However, this does not change the functionality and support of existing LR2 gateways, as the entire system is released as open-source and fully customizable by the user. All support documents and materials are posted on Lorrier github.