sforkowany z mirror/meshtastic-firmware
104 wiersze
6.9 KiB
Markdown
104 wiersze
6.9 KiB
Markdown
# Meshtastic-esp32
|
|
This is the device side code for the [meshtastic.org](https://www.meshtastic.org) project.
|
|
|
|
|
|
|
|
Meshtastic is a project that lets you use
|
|
inexpensive GPS mesh radios as an extensible, super long battery life mesh GPS communicator. These radios are great for hiking, skiing, paragliding -
|
|
essentially any hobby where you don't have reliable internet access. Each member of your private mesh can always see the location and distance of all other
|
|
members and any text messages sent to your group chat.
|
|
|
|
The radios automatically create a mesh to forward packets as needed, so everyone in the group can receive messages from even the furthest member. The radios
|
|
will optionally work with your phone, but no phone is required.
|
|
|
|
Typical time between recharging the radios should be about eight days.
|
|
|
|
This project is currently early-alpha, but if you have questions please join our chat [](https://gitter.im/Meshtastic/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge).
|
|
|
|
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.
|
|
|
|
## Supported hardware
|
|
We currently support three models of radios. The [TTGO T-Beam](https://www.aliexpress.com/item/4000119152086.html), [TTGO LORA32](https://www.banggood.com/LILYGO-TTGO-LORA32-868Mhz-SX1276-ESP32-Oled-Display-bluetooth-WIFI-Lora-Development-Module-Board-p-1248652.html?cur_warehouse=UK) 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 $35). Make
|
|
sure to buy the frequency range which is legal for your country. For the USA, you should buy the 915MHz version. Getting a version that include a screen
|
|
is optional, but highly recommended.
|
|
|
|
See (meshtastic.org) for 3D printable cases.
|
|
|
|
## Installing the firmware
|
|
Prebuilt binaries for the supported radios is available in our [releases](https://github.com/meshtastic/Meshtastic-esp32/releases). Your initial installation has to happen over USB from your Mac, Windows or Linux PC. Once our software is installed, all future software updates happen over bluetooth from your phone.
|
|
|
|
The instructions currently require a few commmand lines, but it should be pretty straightforward. Please post comments on our group chat if you have problems or successes. Steps to install:
|
|
|
|
1. Purchase a radio (see above) with the correct frequencies for your country (915MHz for US or JP, 470MHz for CN, 870MHz for EU).
|
|
2. Install "pip". Pip is the python package manager we use to get the esptool installer app. Instructions [here](https://www.makeuseof.com/tag/install-pip-for-python/).
|
|
3. Run "pip install --upgrade esptool" to get esptool installed on your machine
|
|
4. Connect your radio to your USB port
|
|
5. Confirm that your device is talking to your PC by running "esptool.py chip_id". The Heltec build also works on the TTGO LORA32 radio. You should see something like:
|
|
```
|
|
mydir$ esptool.py chip_id
|
|
esptool.py v2.6
|
|
Found 2 serial ports
|
|
Serial port /dev/ttyUSB0
|
|
Connecting....
|
|
Detecting chip type... ESP32
|
|
Chip is ESP32D0WDQ6 (revision 1)
|
|
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
|
|
MAC: 24:6f:28:b5:36:71
|
|
Uploading stub...
|
|
Running stub...
|
|
Stub running...
|
|
Warning: ESP32 has no Chip ID. Reading MAC instead.
|
|
MAC: 24:6f:28:b5:36:71
|
|
Hard resetting via RTS pin...
|
|
```
|
|
6. Install the correct firmware for your board with "esptool.py write_flash 0x10000 firmware-_board_-_country_.bin". For instance "esptool.py write_flash 0x10000 release/firmware-HELTEC-US-0.0.3.bin". You should see something like this:
|
|
```
|
|
~/development/meshtastic/meshtastic-esp32$ esptool.py write_flash 0x10000 release/firmware-HELTEC-US-0.0.3.bin
|
|
esptool.py v2.6
|
|
Found 2 serial ports
|
|
Serial port /dev/ttyUSB0
|
|
Connecting......
|
|
Detecting chip type... ESP32
|
|
Chip is ESP32D0WDQ6 (revision 1)
|
|
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
|
|
MAC: 24:6f:28:b5:36:71
|
|
Uploading stub...
|
|
Running stub...
|
|
Stub running...
|
|
Configuring flash size...
|
|
Auto-detected Flash size: 8MB
|
|
Compressed 1184800 bytes to 652635...
|
|
Wrote 1184800 bytes (652635 compressed) at 0x00010000 in 57.6 seconds (effective 164.5 kbit/s)...
|
|
Hash of data verified.
|
|
|
|
Leaving...
|
|
Hard resetting via RTS pin...
|
|
```
|
|
7. The board will boot and show the Meshtastic logo.
|
|
8. Please post a comment on our chat so we know if these instructions worked for you ;-). If you find bugs/have-questions post there also - we will be rapidly iterating over the next few weeks.
|
|
|
|
## Meshtastic Android app
|
|
The source code for the (optional) Meshtastic Android app is [here](https://github.com/meshtastic/Meshtastic-Android).
|
|
|
|
Alpha test builds are current available by opting into our alpha test group. See (www.meshtastic.org) for instructions.
|
|
|
|
After our rate of change slows a bit, we will make beta builds available here (without needing to join the alphatest group):
|
|
[](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)
|
|
|
|
# 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 code 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
|
|
in these instructions I describe use of their command line tool.
|
|
|
|
1. Purchase a suitable radio (see above)
|
|
2. Install [PlatformIO](https://platformio.org/platformio-ide)
|
|
3. Download this git repo and cd into it
|
|
4. Plug the radio into your USB port
|
|
4. Type "pio run -t upload" (This command will fetch dependencies, build the project and install it on the board via USB)
|
|
5. Platform IO also installs a very nice VisualStudio Code based IDE, see their [tutorial](https://docs.platformio.org/en/latest/tutorials/espressif32/arduino_debugging_unit_testing.html) if you'd like to use it
|