This plugin allows you to test he range of your Meshtastic nodes. It uses two nodes, one to send a message every minute, and another to receive the messages. The receiving node then saves the messages along with the GPS coordinates at which they were received into a .csv file. This .csv file can then be integrated into, for example, Google Earth, allowing you to see where you have coverage.
## Configuration
These are the settings that can be configured.
range_test_plugin_enabled
Is the plugin enabled?
0 = Disabled (Default)
1 = Enabled
range_test_plugin_save
If enabled, we will save a log of all received messages to /static/rangetest.csv which you can access from the webserver. We will abort
writing if there is less than 50k of space on the filesystem to prevent filling up the storage.
0 = Disabled (Default)
1 = Enabled
range_test_plugin_sender
Number of seconds to wait between sending packets. Using the long_slow channel configuration, it's best not to go more frequent than once every 60 seconds. You can be more agressive with faster settings. 0 is default which disables sending messages.
For basic usage, you will need two devices both with a GPS. A device with a paired phone with GPS may work, I have not tried it.
The first thing to do is to turn on the plugin. The device will need to be restarted after appling the settings. With the plugin turned on, the other settings will be available:
range_test_plugin_enabled = 1
If you want to send a message every 60 seconds:
range_test_plugin_sender = 60
To save a log of the messages:
range_test_plugin_save = 1
Recommended settings for a sender at different radio settings:
Be sure to turn off either the plugin configured as a sender or the device where the plugin setup as sender when not in use. This will use a lot of time on air and will spam your channel.
Also be mindful of your space usage on the file system. It has protections from filling up the space but it's best to delete old range test results.
1. [Download](https://www.google.com/earth/versions/#download-pro) and open Google Earth
1. Select File > Import
2. Select CSV
3. Select Delimited, Comma
4. Make sure the button that states “This dataset does not contain latitude/longitude information, but street addresses” is unchecked
5. Select “rx lat” & “rx long” for the appropriate lat/lng fields
6. Click finish
2. When it prompts you to create a style template, click yes.
1. Set the name field to whichever column you want to be displayed on the map (don’t worry about this too much, when you click on an icon, all the relavant data appears)
You can use [My Maps](http://mymaps.google.com/). It takes CSVs and the whole interface is much easier to work with.
Google has instructions on how to do that [here](https://support.google.com/mymaps/answer/3024836?co=GENIE.Platform%3DDesktop&hl=en#zippy=%2Cstep-prepare-your-info%2Cstep-import-info-into-the-map).
You can style the ranges differently based on the values, so you can have the pins be darker the if the SNR or RSSI (if that gets added) is higher.
## Known Problems
If turned on, using mesh network will become unwieldly because messages are sent over the same channel as the other messages. See TODO below.
* Turn on the WiFi on your device as either a WiFi client or a WiFi AP. Once you can connect to your device, go to /static and you will see rangetest.csv.
* We have a protection in place to keep you from completly filling up your device. This will make sure that other device critical functions will continue to work. We will reserve at least 50k of free space.
* Yes, but your battery will run down quicker than normal. While sending, we tell the device not to go into low-power mode since it needs to keep to a fairly strict timer.
* This plugin is still young and currently supports monitoring just one port at a time. I decided to use the existing message port because that is easy to test with. A future version will listen to multiple ports to be more promiscuous.
