EZDevice-python

This project is in alpha test - you probably don't want this yet.

Installation

You can install this package with the pip utility (this project requires python 3):

pip install ezdevice-python

Once installed you can use this executable either as a command-line tool or as a library for your own python applications.

Talking to your devices via the web from Python

You can use the EZDeviceClient class as a wrapper for the REST API exposed by the server. Click the link to see the current crude generated HTML documention or see the source code for the current implemention. This library is not yet complete, essentially offering only an API to set the image shown on the screen. Send me a note if you'd like to use it and a feature is missing and I'll add it.

All of the API operations are also available from the shell for testing. For instance, the following will show an image on the display.

# show a github logo
ezdevice --target JXXXX --claim --displayfile github.png
# show an HTML file
ezdevice --target JXXXX --claim --displayfile myfile.html

Programming new devices

This tool should automate the process of installing a ezdevice binary onto a new device. You run it as follows

ezdevice --install BOARDTYPE

Where boardtype is a pair of letters:

JL for the TTGO T5 with a 2.13" eink screen
JK for the TTGO T5 with a 2.9" red and black eink screen
JY for the TTGO T5 with a 2.9" yellow and black eink screen
JM for the TTGO T5s with a two color eink screen
JR for the TTGO T4
JO for the TTGO with a 18650 battery and OLED screen (I'm not sure if this has a model number)
JG for the TTGO GROW plant sensor
JT for the TTGO Camera (the skinny one with no motion sensor)
JC for the TTGO Camera (the wider one with bigger screen and a motion sensor)
MS for the M5STICK board
MB for the M5BASIC board

Support for other device types will be released soon.

Example session:

mymachine:~$ ezdevice --install L
Downloading firmware for board type L from https://joyfirmware.s3.amazonaws.com/firmware-L.bin
esptool.py v2.6
Found 1 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: XXX
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Configuring flash size...
Auto-detected Flash size: 4MB
Compressed 926960 bytes to 509378...
Wrote 926960 bytes (509378 compressed) at 0x00010000 in 8.3 seconds (effective 898.4 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...
esptool.py v2.6
Found 1 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: XXX
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Erasing region (may be slow depending on size)...
Erase completed successfully in 3.4 seconds.
Hard resetting via RTS pin...
No preconfigured wifi settings found
  Please use your phone to connect to the wifi from your new device and tell it your wifi settings
  The SSID will be EZdevice-XXXX

Author

Kevin Hester, kevinh@geeksville.com

License

FIXME add MIT license

Contributing

The root repository for this project is located at https://github.com/geeksville/ezdevice-python. Issues and pull requests are gratefully accepted.

geeksville / ezdevice-python