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Modifications
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→Connexion USB
In a few seconds, the LED should start blinking every 4 seconds. This means that everything is fine! If you cannot see the blinking, please disconnect the power supply and re-check the boards position on the expansion board.
In a few seconds, the LED should start blinking every 4 seconds. This means that everything is fine! If you cannot see the blinking, please disconnect the power supply and re-check the boards position on the expansion board.
[[Fichier:Hack-pycom-esp_32-20.gif]]
= Upgrade du FirmWare =
We strongly recommend you to upgrade your firmware to the latest version as we are constantly making improvements and adding new features.
Here are the download links to the update tool. Please download the appropriate one for your OS and follow the instructions on the screen.
* [https://software.pycom.io/findupgrade?product=pycom-firmware-updater&type=all&platform=win32&redirect=true Windows].
* [https://software.pycom.io/findupgrade?product=pycom-firmware-updater&type=all&platform=macos&redirect=true MacOS] (10.11 or higher).
* [https://software.pycom.io/findupgrade?product=pycom-firmware-updater&type=all&platform=unix&redirect=true Linux] (requires dialog package).
Previous versions of firmware are available for download on the [https://www.pycom.io/support/supportdownloads/#firmware Pycom website].
[[Fichier:Hack-pycom-esp_32-30.png]]
The instructions given by the updater tool should be followed carefully. The basic procedure is like this:
* Disconnect your device from the PC.
* Connect wire G23+GND using a jumper cable.
* Connect the board to the USB.
* Run the upgrader
* Remove the G23+GND wire.
* Reboot the device (button or powercycle)
Connecting G23 and GND puts the device in ‘update mode’. You won’t need this for any other task than using the firmware upgrader.
After you’re done with the upgrade, you can use Pymakr to upload and run programs in your device.
If you have your telnet connection or Pymakr already setup, the version can be with the following code:
<syntaxhighlight lang="python">
import os
os.uname().release
</syntaxhighlight>
{{ambox-stop|text=Make sure the TX jumper is present on your expansion board, as the jumpers sometimes come loose in the box during transport. Without this jumper, the updater will fail.}}
= Introduction à MicroPython =
Les cartes PyCom boards work with [https://micropython.org/ Micropython]; a Python 3 implementation that is optimised to run on micocontrollers. This allows for much faster and easier development than using C.
When booting, two files are executed automatically: first boot.py and then main.py. These are placed in the /flash folder on the board. Any other files or libraries can be placed here as well, and included or used from boot.py or main.py.
The folder structure in /flash looks like the picture below. The files can be managed either using [[Hack-pycom-esp_32-FTP|FTP]] or using [[Hack-pycom-esp_32-Pymakr|Pymakr]].
[[Fichier:Hack-pycom-esp_32-40.png]]
= Se connecter sur la carte avec Pymakr =
[[Hack-pycom-esp_32-Pymakr|Pymakr]]
{{LOPY-TRAILER}}
{{LOPY-TRAILER}}