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add power measurements to README

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geeksville 2020-02-15 09:10:35 -08:00
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5
.vscode/settings.json vendored
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@ -42,5 +42,8 @@
"typeinfo": "cpp", "typeinfo": "cpp",
"string": "cpp", "string": "cpp",
"*.xbm": "cpp" "*.xbm": "cpp"
} },
"cSpell.words": [
"Meshtastic"
]
} }

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README.md
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# Meshtastic-esp32 # Meshtastic-esp32
This is the device side code for the [meshtastic.org](https://www.meshtastic.org) project. This is the device side code for the [meshtastic.org](https://www.meshtastic.org) project.
Meshtastic is a project that lets you use Meshtastic is a project that lets you use
@ -17,14 +16,12 @@ This project is currently pre-alpha, but if you have questions please join our c
This software is 100% open source and developed by a group of hobbyist experimenters. No warranty is provided, if you'd like to improve it - we'd love your help. Please post in the chat. This software is 100% open source and developed by a group of hobbyist experimenters. No warranty is provided, if you'd like to improve it - we'd love your help. Please post in the chat.
## Meshtastic Android app ## Meshtastic Android app
The source code for the Meshtastic Android app is [here](https://github.com/geeksville/Meshtastic-Android). The source code for the Meshtastic Android app is [here](https://github.com/geeksville/Meshtastic-Android).
Soon our first alpha release of will be released here: Soon our first alpha release of will be released here:
[![Download at https://play.google.com/store/apps/details?id=com.geeksville.mesh](https://play.google.com/intl/en_us/badges/static/images/badges/en_badge_web_generic.png)](https://play.google.com/store/apps/details?id=com.geeksville.mesh&referrer=utm_source%3Dgithub%26utm_medium%3Desp32-readme%26utm_campaign%3Dmeshtastic-esp32%2520readme%26anid%3Dadmob&pcampaignid=pcampaignidMKT-Other-global-all-co-prtnr-py-PartBadge-Mar2515-1) [![Download at https://play.google.com/store/apps/details?id=com.geeksville.mesh](https://play.google.com/intl/en_us/badges/static/images/badges/en_badge_web_generic.png)](https://play.google.com/store/apps/details?id=com.geeksville.mesh&referrer=utm_source%3Dgithub%26utm_medium%3Desp32-readme%26utm_campaign%3Dmeshtastic-esp32%2520readme%26anid%3Dadmob&pcampaignid=pcampaignidMKT-Other-global-all-co-prtnr-py-PartBadge-Mar2515-1)
## Supported hardware ## Supported hardware
We currently support two brands of radios. The [TTGO T-Beam](https://www.aliexpress.com/item/4000119152086.html) and the [Heltec LoRa 32](https://heltec.org/project/wifi-lora-32/). Most users should buy the T-Beam and a 18650 battery (total cost less than $35). Make We currently support two brands of radios. The [TTGO T-Beam](https://www.aliexpress.com/item/4000119152086.html) and the [Heltec LoRa 32](https://heltec.org/project/wifi-lora-32/). Most users should buy the T-Beam and a 18650 battery (total cost less than $35). Make
sure to buy the frequency range which is legal for your country. For the USA, you should buy the 915MHz version. Getting a version that include a screen sure to buy the frequency range which is legal for your country. For the USA, you should buy the 915MHz version. Getting a version that include a screen
is optional, but highly recommended. is optional, but highly recommended.
@ -33,8 +30,13 @@ We don't yet distribute prebuilt binaries. But soon (by Feb 22) we will have a
For a nice 3D printable case see [this design](https://www.thingiverse.com/thing:3773717) by [bsiege](https://www.thingiverse.com/bsiege). For a nice 3D printable case see [this design](https://www.thingiverse.com/thing:3773717) by [bsiege](https://www.thingiverse.com/bsiege).
## Build instructions # Development
The following sections are probably only interesting if you want to join us in developing the software.
## Power measurements
Since one of the main goals of this project is long battery life, it is important to consider that in our software/protocol design. Based on initial measurements it seems that the current source base should run about three days between charging, and with a bit more software work (see the [TODO list](TODO.md)) a battery life of eight days should be quite doable. Our current power measurements/model is in [this spreadsheet](https://docs.google.com/spreadsheets/d/1ft1bS3iXqFKU8SApU8ZLTq9r7QQEGESYnVgdtvdT67k/edit?usp=sharing).
## Build instructions
This project uses the simple PlatformIO build system. You can use the IDE, but for brevity This project uses the simple PlatformIO build system. You can use the IDE, but for brevity
in these instructions I describe use of their command line tool. in these instructions I describe use of their command line tool.