Tag: micropython
![#MicroPython: a three-color E-INK display controlled using an ESP32]( "#MicroPython: a three-color E-INK display controlled using an ESP32")
23
Feb - 2020MicroPython
4 min | 2958This is a tutorial to control and display widgets on an E-INK display using an ESP32. Three widgets are available:
- Weather: weather forecast obtained using the OpenWeatherMap API.
- News: news highlights obtained using the NewsApi API.
- Notes: notes that can be added using a web-server that runs on the ESP32.
The result can be seen in this video:
Thus, in this tutorial, I will try to achieve the following:
- A guide to compile MicroPython to freeze modules;
- A setup guide for ...
![#MicroPython: Portable time-lapse camera using an ESP32-CAM]( "#MicroPython: Portable time-lapse camera using an ESP32-CAM")
16
Feb - 2020MicroPython
2 min | 6667This tutorial extends the article MicroPython: Taking photos with an ESP32 and in this case, the ESP32-CAM running MicroPython takes a photo every 5 seconds and saves it on the microSD card. The photos can be then combined into a time-lapse video! :)
The MicroPython official version doesn't support I2S interface. However, tsaarni wrote a driver for the OV2640 and forked the MicroPython repository to include it. Thus, you need to follow the instructions in this article: MicroPyt...
![#Tutorial: ESP32 running MicroPython sends data over LoRaWAN]( "#Tutorial: ESP32 running MicroPython sends data over LoRaWAN")
13
Feb - 2020LoRa/LoRaWAN, MicroPython
8 min | 4329#Tutorial: ESP32 running MicroPython sends data over LoRaWAN
LoRa/LoRaWAN, MicroPython | 8 min | 4329
LoRa is a wireless data communication technology that enables you to transmit data over a very-long-range (more than 10 km in rural areas) with low power consumption. It uses license-free sub-gigahertz radio frequency bands as the 169 MHz, 433 MHz, 868 MHz for Europe, and 915 MHz for North America.
In October 2018, I published an article about LoRa and ESP32, and I uploaded a project to GitHub. The project includes a SX127x driver for ESP32 running MicroPython. However...
![#Tutorial: MicroPython and Bluetooth (BLE) on M5Stack]( "#Tutorial: MicroPython and Bluetooth (BLE) on M5Stack")
02
Feb - 2020M5Stack, MicroPython
6 min | 7361The M5Stack is a modular open-source toolkit for developing IoT applications. It is based on an ESP32, which is the core module and there are a lot of stackable modules that you can use for different projects. This enables to do rapid and high-quality prototyping!
You can program the core device using the ESP-IDF framework, the Arduino-IDE, Blockly or MicroPython. Unfortunately, the BLE is still not available using the official M5Stack MicroPython firmware (forked from LoBo). Howeve...
![#MicroPython: an IoT BRIO Locomotive]( "#MicroPython: an IoT BRIO Locomotive")
23
Jan - 2020MicroPython
3 min | 818This tutorial helps you update a BRIO locomotive using an ESP32 that runs MicroPython. As a result, you can control the speed of the BRIO using a cell phone or a laptop (basically, everything that has a browser).
If you don't know what a BRIO locomotive is, check out the following picture:
![BRIO World 33594]()
Fig. 1: BRIO World 33594 In this tutorial, I will try to accomplish the following points:
- Hardware modifications on a ESP32 board;
- MicroPython installation;
- Controlling the locomot...
![#MAixPy: Object detector - MobileNet and YOLOv2 on Sipeed MAix Dock]( "#MAixPy: Object detector - MobileNet and YOLOv2 on Sipeed MAix Dock")
16
Jan - 2020MicroPython
11 min | 7139This tutorial is about training (on PC) and deploying a YOLOv2 object detector on a MAix M1w Dock Suit running MicroPython. The MobileNet is used as a pre-trained model for the training.
Therefore, this tutorial will try to accomplish the following points:
- A quick introduction to YOLO(v2)
- A quick introduction to MAix KPU
- Training, evaluation, and testing of the object detector model (on Jupyter-Notebooks running on Docker)
- Flashing the trained model on the MAi...
![#NewDecade2020: Celebrating 2020 with a quick look back at 2019]( "#NewDecade2020: Celebrating 2020 with a quick look back at 2019")
05
Jan - 2020General
1 min | 780The following video summarizes the project highlights of 2019! Most of them are implemented using MicroPython on ESP32 and Python on Raspberry/Orange Pi.
The flying video was recorded with a Nexus 5X mounted on the Zhiyun Smooth 4. In the video-edition process, software stabilization was only used on the vertical axis. The Zhiyun Smooth 4 smoothed the horiz...
![#M5Stack: Christmas Lights using MicroPython & WS2812B Leds]( "#M5Stack: Christmas Lights using MicroPython & WS2812B Leds")
24
Dec - 2019M5Stack, MicroPython
4 min | 1549Holiday season has begun and Christmas and the New Year 2020 are approaching! This means, time to reflect and to clean up code and, therefore, I am updating some of the GitHub's projects to summarize the year. I started with the Christmas lights project! But, this time, I took the M5Stack Fire and a new LED panel (WS2812b - 16x16 pixel) and with the XMasLight project, these are the results (Fig. 1 & 2):
![xmas_2020-min (1).png]()
Fig. 1: M5Stack and a new WS2812b Panel (16x16 pixel). Hardw...
![#MicroPython: Taking photos with an ESP32-CAM]( "#MicroPython: Taking photos with an ESP32-CAM")
15
Sep - 2019MicroPython
6 min | 17370Last year, I bought an ESP32-CAM board from Banggood and I wanted to use it with MicroPython. The board has an OV2640 without any chip (buffer) between the ESP32 and the camera. There are many implementation for Arduino or directly using Espressif, but I wanted to use MicroPython. Thus, the only solution was to use the I2S interface, but I didn't have time to write the driver. Thus, I put the project on hold. However, last week I was searching between the ESP32 boards that I have,...
![#MicroPython: VSCode IntelliSense, Autocompletion & Linting capabilities]( "#MicroPython: VSCode IntelliSense, Autocompletion & Linting capabilities")
20
Aug - 2019MicroPython
4 min | 17893#MicroPython: VSCode IntelliSense, Autocompletion & Linting capabilities
MicroPython | 4 min | 17893
Last December, I wrote an article telling you that I was switching from Atom.io to Visual Studio Code to program MicroPython. Nowadays, I'm still using VSCode and the PyMakr extension. The latter enables the communication to a board running MicroPython using the built-in command line REPL. Thus, I can run a single file on my board, sync my entire project or directly type and execute commands using the Terminal on VSCode. However, I was missing some of the main features of VSCode, namely IntelliSense, autocompletion, and linting capabilities. Last month, BradenM contacted me and told me that he...
