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Development. Second ethernet PHY IC support. part 3.

In previous chapter we modified DTS to add support for second PHY IC on our OpenWrt driven SoM. Time to test it. After compilation of image: $ ./compile.sh flexcan_wifi and updating device firmware: root@OpenWrt:/#  scp user@host_address:/path_to_project/lorawan-imx6ull/bin/targets/imx6ull/cortexa7/openwrt-imx6ull-cortexa7-flexcan_wifi-squashfs.mtd-sysupgrade.bin /tmp root@OpenWrt:/# sysupgrade -c /tmp/openwrt-imx6ull-cortexa7-flexcan_wifi-squashfs.mtd-sysupgrade.bin check logs first: root@OpenWrt:/# dmesg | grep eth […

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Development. Second ethernet PHY IC support. part 2.

So after getting working single PHY IC on new revision of OpenWrt driven SoM we continue development process to get working two PHY IC on same PCB. First of all we soldered second testbench that provides access to core functionality (JTAG, both ethernet interfaces and UART console) of SoM module:…

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Development. Second ethernet PHY IC support. part 1.

In last (I hope) revision of OpenWrt driven SoM module we added second ethernet PHY IC to increase functionality of module. Changes made in hardware: shared MDIO interface between two PHY IC (KSZ8081RNAIA); RESET pin routed from each IC to Microprocessor. CRS_DV pin of each IC pulled up/down to make…

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SOM based architecture

Two years ago when we started development of LoRaWAN gateway the only starting point that was not in doubt was the decision to use OpenWrt OS. Another requirement was the need to use and industrial grade processor. After many hours of searching we were unable to find such processor we can buy…

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Ways to reduce cost of deploying LoRaWAN network

While deploying a LoRaWAN network, an operator is faced with the critical task of breaking the network’s self-sustainability point as soon as possible, when the revenue from providing service by connected end nodes begins to exceed the cost of maintaining the network. Unfortunately, many operators are faced with the fact…

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Lorawan water meter

Lorawan water meter for less than $10. Yes, without display. Coming soon. More photo in our telegram channel  m2m-telecom

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Lorawan gateway GW-01. Developers guide. Armbian.

You can build Armbian image for GW-01 from source. This gives you way to customize lorawan gateway. To do that: Clone Armbian OS project $ git clone –depth 1 https://github.com/armbian/build $ cd build Start image compilation process: $ ./compile.sh Configuration menu windows appears. Select “Full OS image for flashing” then…

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Lorawan gateway GW-01. Developers guide. OpenWrt.

You may want to build OpenWrt image for GW-01 from source. This gives you way to customize lorawan gateway. As it is open source you can do it easily. Clone repository with documentation and OpenWrt patch for gateway. $ git clone https://github.com/wireless-road/lorawan-openwrt.git Pay attention for “openwrt-orangepi-zero-201804230634.patch” file. There is OpenWrt…

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Lorawan gateway GW-01 getting started.

Lorawan gateway GW-01. GW-01 is  low cost open source Lorawan gateway. The device consists of two interconnected boards. Top of them implements LoRa PHY using SX1301 which is digital baseband chip for outdoor LoRaWAN macro gateways. Bottom one is well known orange pi zero development board with light modification –…

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lora raspberry pi

LoRa became a very powerful wireless communication interface that gives the way to build big scale wireless networks containing hundreds and thousands of devices. Used topology is a star when all nodes send information to web server through some amount of gateways. The most interesting feature of LoRa interface that…

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