MCH2022 Curated content

Building public, dynamic webapps using Micropython on the ESP32

Envelope ✉️
Bjarni Rúnar Einarsson
This workshop will introduce upagekite, an open source micro-framework for building dynamic, public webapps using Micropython on the low-cost ESP32 system-on-a-chip. This session will start with participants plugging the ESP32 into their laptops to the first time, and by the end of it they will have a running web server on the public Internet - running in a few hundred KB of RAM on a chip that costs only a few euro.
The ESP32 is a low-cost system-on-a-chip with built-in support for bluetooth and WiFi. Although heavily resource constrained, with only a few hundred KB of RAM, it is possible to run Micropython on these devices and expose a live webserver: not just to the local network, but to the public web using open-source Pagekite reverse proxies. Topics covered in the workshop will include: 1. Flashing the latest version of Micropython to the chip 2. Uploading custom Python code 3. Creating a simple, dynamic webapp which interacts with peripherals, such as a camera or GPIO 4. Exposing the webapp to the public web 5. Security concerns and constraints Advanced topics which may be covered, depending on time and interest: * Conserving RAM by "freezing" custom Python code into the Micropython binary * Creating a captive portal for configuring the device on a new network Participants are welcome to bring their own ESP32 chips, but there will also be a few chips handed out as giveaways, on a first-come, first-served basis. Participants should bring their own laptops and be familiar with basic use of git and Python.

Additional information

Type Long workshop
Language English

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