prnf
lvgl
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prnf
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Embedded Systems Weekly #127
PRNF I'm keeping an eye on this lightweight tiny printf alternative. It is one year old and get a 1.0.0 release recently, but doesn't have any tests. It could become interesting with a bit more QA.
- Show HN
- An alternative text formatter in C, easily extendable, lightweight and well suited to microcontrollers.
lvgl
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Ask HN: Nobody interested an open hardware iPod Nano?
So here is the thing: The iPod Nano 7g is from 2012. I've seen many people designing custom PCBs and releasing Kickstarter projects for custom audio players[5] or game handhelds[6]. I know Rockbox (which is great, but its lacks support for Wifi and Bluetooth AFAIK and just does not compete with the UX of iPod's audio book features in my opinion) and iPod Linux. 10 years ago someone even reverse engineered the iPod Nano 6g display[3].
Although I'm not skilled enough in PCB-Design, after some research I found the Lilygo T-Display S3 Pro[4] based on ESP32 S3, which would be the size, but lacks audio and OS. There is also the Mango PI CyberPad[7], which looked interesting, but maybe is already too clunky.
Programming wise, LVGL[8] may be a good framework to develop a modern and efficient UI - at least it looks promising.
So, why is nobody interested in recreating an iPod nano like device? It should be doable with modern tech, but Phones have completely taken over the marked...
1: https://www.reddit.com/r/audiobooks/comments/14ue4un/comment/ks1sj99/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button
2: https://github.com/advplyr/audiobookshelf-app/issues/847
3: https://www.youtube.com/watch?v=7TedIzmguP0
4: https://www.lilygo.cc/products/t-display-s3-pro
5: https://www.youtube.com/watch?v=1C597AkhGtw
6: https://www.funkey-project.com/
7: https://mangopi.org/cp1m
8: https://lvgl.io/
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LVGL 9.0 Released
LVGL is a graphics library used mostly for embedded UI's. Main website: https://lvgl.io/
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imgui VS lvgl - a user suggested alternative
2 projects | 3 Nov 2023
Popular embedded UI library
- LVGL: Light and Versatile Graphics Library
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Show HN: Slint - A Declarative UI Toolkit Written in Rust for Embedded & Desktop
If you need something written in C and very tiny, I recommend LVGL https://lvgl.io/
- Open-source graphics library to create UIs for any microcontroller
- How to write display drivers?
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Lilygo T-Display-S3 AMOLED
The factory code uses the Lvgl graphic library. https://github.com/lvgl/lvgl
- Is anyone still offering 1.4ghz mod services?
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Interfacing SPI LCD with Zynq 7020
I'm trying to interface SPI LCD (ILI943) with Zynq 7020 (PYNQ-Z2 board) and LVGL embedded UI libary. And considering between two approaches:
What are some alternatives?
tinyengine - [NeurIPS 2020] MCUNet: Tiny Deep Learning on IoT Devices; [NeurIPS 2021] MCUNetV2: Memory-Efficient Patch-based Inference for Tiny Deep Learning; [NeurIPS 2022] MCUNetV3: On-Device Training Under 256KB Memory
TFT_eSPI - Arduino and PlatformIO IDE compatible TFT library optimised for the Raspberry Pi Pico (RP2040), STM32, ESP8266 and ESP32 that supports different driver chips
tiny-json - The tiny-json is a versatile and easy to use json parser in C suitable for embedded systems. It is fast, robust and portable.
LovyanGFX - SPI LCD graphics library for ESP32 (ESP-IDF/ArduinoESP32) / ESP8266 (ArduinoESP8266) / SAMD51(Seeed ArduinoSAMD51)
trice - π’ super fast π and tiny π₯ embedded device πΎ printf-like trace β code, works also inside β‘ interrupts β‘ and real-time PC π» logging (trace ID visualization π)
imgui - Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies
embox - Modular and configurable OS for embedded applications
GuiLite - βοΈThe smallest header-only GUI library(4 KLOC) for all platforms
berry - A ultra-lightweight embedded scripting language optimized for microcontrollers.
micropython-micro-gui - A lightweight MicroPython GUI library for display drivers based on framebuf, allows input via pushbuttons. See also micropython-touch.
slint - Slint is a declarative GUI toolkit to build native user interfaces for Rust, C++, or JavaScript apps.
littlefs - A little fail-safe filesystem designed for microcontrollers