Normally it comes with a single 434MHz LoRa device but here I’ve added a second (you could add a 434MHz or 868MHz model). \u00a0The remainder of this post will assume that the board is populated with just one device, in position\u00a01.<\/p>\n Physically install is very simple – just push on to the Pi model A+ or B+, using a standard pin header extender (supplied). \u00a0Or an\u00a0pin header with extended pins can be used if you want to stack another board on top.<\/p>\n Next, burn an operating system onto a suitable SD card. \u00a0For this purpose anything from 4GB should be fine. \u00a0The following instructions are for Raspbian, and no other operating systems have been tested.<\/p>\n First, run raspi-config:<\/p>\n Then expand the filesystem, as you would normally do, then choose Advanced Options –> SPI and enable SPI.<\/p>\n It’s also worthwhile to change the hostname (Advanced Options –> Hostname). \u00a0Finally, close the program and choose the reboot option.<\/p>\n Once rebooted, login again. \u00a0We now have some software to install. \u00a0First,\u00a0install wiringPi, which is used for the SPI library and to read the status of the LoRa module via 2 of its INT pins:<\/p>\n Next, install SSDV which is used to decode download images:<\/p>\n The gateway software uses the curl library for internet access (uploading telemetry data and\/or image data), so install that:<\/p>\n and the ncurses library used for the screen display:<\/p>\n Finally, install the gateway software itself:<\/p>\n That completes the installation, so now for the configuration. \u00a0The main settings are in a file gateway.txt in the above folder (\/home\/pi\/lora-gateway). \u00a0Here’s a simple example:<\/p>\n This firstly sets\u00a0your<\/span> callsign, which if you are a radio amateur would normally be your radio callsign, but it can be something else.<\/p>\n The next part sets the frequency and mode for the first LoRa device (the one in position “1”). \u00a0Frequency is in MHz and should match the frequency of the tracker that you intend to receive. \u00a0“Mode” is described below, where the other (optional) settings are also described. \u00a0The final lines are commented out, to disable the second LoRa module.<\/p>\n To run, just type<\/p>\n and you will see a screen like this:<\/p>\n![\"IMG_1214\"](\"http:\/\/www.daveakerman.com\/wp-content\/uploads\/2015\/01\/IMG_1214-1024x768.jpg\")
<\/a><\/p>\nsudo raspi-config<\/code><\/pre>\n![\"rc\"](\"http:\/\/www.daveakerman.com\/wp-content\/uploads\/2015\/01\/rc.png\")
<\/a><\/p>\ncd ~\r\ngit clone git:\/\/git.drogon.net\/wiringPi\r\ncd wiringPi\r\n.\/build<\/code><\/pre>\ncd ~\r\ngit clone https:\/\/github.com\/fsphil\/ssdv.git\r\ncd ssdv\r\nsudo make install<\/code><\/code><\/pre>\nsudo apt-get install libcurl4-openssl-dev<\/code><\/pre>\nsudo apt-get install libncurses5-dev<\/code><\/pre>\ncd ~\r\ngit clone https:\/\/github.com\/PiInTheSky\/lora-gateway.git\r\ncd lora-gateway\r\nmake<\/code><\/pre>\ntracker=MYCALLSIGN\r\n\r\n<\/code>frequency_0=434.451\r\nmode_0=2\r\n\r\n#frequency_1=434.450\r\n#mode_1=0<\/pre>\ntracker=<callsign>. This is whatever callsign you want to appear as on the tracking map and\/or SSDV page.\r\n\r\nEnableHabitat=<Yes\/No>. Enables\/disables telemetry upload to habitat.\r\n\r\nEnableSSDV=<Yes\/No>. Enables\/disables image upload to the SSDV server.\r\n\r\nfrequency_<n>=<freq in MHz>. This sets the frequency for LoRa module <n> (0 for first, 1 for second). e.g. frequency_0=434.450\r\n\r\nmode_<n>=<mode>. Sets the \"mode\" for the selected LoRa module. This offers a simple way of setting the various\r\n LoRa parameters (SF etc.) in one go. The modes are:\r\n\r\n 0 = (normal for telemetry) Explicit mode, Error coding 4:8, Bandwidth 20.8kHz, SF 11, Low data rate optimize on\r\n 1 = (normal for SSDV) Implicit mode, Error coding 4:5, Bandwidth 20.8kHz, SF 6, Low data rate optimize off\r\n 2 = (normal for repeater) Explicit mode, Error coding 4:8, Bandwidth 62.5kHz, SF 8, Low data rate optimize off\r\n 3 = (normal for fast SSDV) Explicit mode, Error coding 4:6, Bandwidth 250kHz, SF 7, Low data rate optimize off\r\n\r\nSF_<n>=<Spreading Factor> e.g. SF_0=7\r\n\r\nBandwidth_<n>=<Bandwidth>. e.g. Bandwidth_0=41K7. Options are 7K8, 10K4, 15K6, 20K8, 31K25, 41K7, 62K5, 125K, 250K, 500K\r\n\r\nImplicit_<n>=<Y\/N>. e.g. Implicit_0=Y\r\n\r\nCoding_<n>=<error_coding>. e.g. Coding_0=5 (4:5)\r\n<\/code><\/pre>\nsudo .\/gateway<\/pre>\n
![\"gw\"](\"http:\/\/www.daveakerman.com\/wp-content\/uploads\/2015\/01\/gw1.png\")
<\/a><\/p>\n![\"gw2\"](\"http:\/\/www.daveakerman.com\/wp-content\/uploads\/2015\/01\/gw2.png\")
<\/a><\/p>\n