A LimeNET-micro just arrived,
and the plan was to test Ubuntu Core for CM3
and the LimeNET snaps.
But that won’t boot (I still need to check the older Core 16)
and while I figure out if the DTB or the boot setup is wrong I run Raspbian.
Here are some notes to set that up with rtl_433.
Get usbboot and write the image
Get usbboot.
On a host system (here Debian 9):
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sudo apt-get install build-essential git libusb-1.0-0-dev
git clone https://github.com/raspberrypi/usbboot
cd usbboot
make
sudo ./rpiboot
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Set the jumper J14 “USB boot” and connect the LimeNET-micro with a Micro-USB to USB-A cable.
Get Raspbian Stretch Lite and write the image:
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wget -O raspbian_lite_latest.zip https://downloads.raspberrypi.org/raspbian_lite_latest
unzip -p raspbian_lite_latest.zip |sudo dd status=progress of=/dev/rdisk2 bs=1024k
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If you want SSH access after boot
enable SSH by placing a file named “ssh” onto the boot partition of the SD card:
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sudo partx -va /dev/sdb
mkdir /tmp/raspbian-boot
mount /dev/sdb1 /tmp/raspbian-boot
touch /tmp/raspbian-root/ssh
umount /tmp/raspbian-boot
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Remove the cable and open the jumper J14.
Booting and setup
After booting the LimeNET-micro, if you want SSH access with keys use e.g.
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ssh pi@raspberrypi
mkdir .ssh
echo $YOUR_SSH_PUB_KEY >.ssh/authorized_keys
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Now use raspi-config do do a basic setup or
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sudo usermod -p $YOUR_PASSWORD_HASH pi
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echo $YOUR_HOST_NAME | sudo tee /etc/hostname >/dev/null
sudo sed -i "s/raspberrypi/$YOUR_HOST_NAME/" /etc/hosts
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echo Europe/Berlin | sudo tee /etc/timezone >/dev/null
sudo cp /usr/share/zoneinfo/Europe/Berlin /etc/localtime
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- Update the Raspbian system
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sudo apt update && sudo apt full-upgrade
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- Install the basics for compiling software
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sudo apt-get install build-essential git cmake libusb-1.0-0-dev
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- If you want LimeSuite UI:
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sudo apt-get install libwxgtk3.0-dev
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- Enable user access to the Lime
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echo 'SUBSYSTEM=="usb", ATTR{idVendor}=="0403", ATTR{idProduct}=="601f", MODE="0660", GROUP="plugdev"' | sudo tee /etc/udev/rules.d/10-lime-ftdi.rules >/dev/null
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Now Reboot or check lsusb and run
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sudo chgrp plugdev /dev/bus/usb/001/004
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Install software
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git clone https://github.com/pothosware/SoapySDR.git
cd SoapySDR/
git checkout soapy-sdr-0.7.1
mkdir build ; cd build ; cmake .. && make && sudo make install ; cd
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git clone https://github.com/myriadrf/LimeSuite.git
cd LimeSuite/
mkdir build ; cd build ; cmake .. && make && sudo make install ; cd
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git clone https://github.com/merbanan/rtl_433.git
cd rtl_433
mkdir build ; cd build ; cmake .. && make && make install ; cd
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If you want Supervisord to run rtl_433
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sudo apt-get install supervisor
sudo tee /etc/supervisor/conf.d/rtl_433.conf > /dev/null <<'EOF'
[program:rtl_433]
command=/usr/local/bin/rtl_433 -d "" -s 2M -C si -M level -M newmodel
user=pi
EOF
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Run some test programs to check that everything works
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LimeUtil --info
LimeUtil --find
LimeUtil --make
LimeUtil --update
LimeUtil --make
SoapySDRUtil --info
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You can now add things like MQTT to rtl_433 to get a complete RF to IoT bridge.