Uploaded May 2026 | Updated September 2026, 2 weeks ago
This pocket-sized device is powered by the ESP32-C5 and features a mechanical keycap with a built-in 0.85-inch IPS display. It connects via BLE, so it works as a fully wireless input device for my phone and laptop too. The whole project is completely open-source! github.com/0015/esp32-morse-keyer
This pocket-sized device is powered by the ESP32-C5 and features a mechanical keycap with a built-in 0.85-inch IPS display. It connects via BLE, so it works as a fully wireless input device for my phone and laptop too. The whole project is completely open-source! github.com/0015/esp32-morse-keyer
![LVGL Tutorial with ESP32, How to update the screen with data obtained from sensors. #FreeRTOS #Task
The data obtained from the sensor must be updated in the UI on the screen. This video covers how to update the screen by passing data through a queue based on FreeRTOS task.
[Grove - SEN55 All-in-one environmental sensor]
https://www.seeedstudio.com/Grove-All-in-one-Environmental-Sensor-SEN55-p-5373.html
[Source Code]
https://github.com/0015/ThatProject/tree/master/ESP32_LVGL/LVGL9
[LVGL 9, [Ep. 07] My Air Quality Sensor, How to update the screen with data obtained from sensors.]
https://youtu.be/g9j8FfF2GJ8
[LVGL 9, [Ep. 06] My Air Quality Sensor, Draw IKEA UI]
https://youtu.be/LQ_iq_gYlqY
[LVGL 9, [Ep. 05] Custom fonts are essential in GUI!]
https://youtu.be/ogXSDtYLQ7M
[LVGL 9, [Ep. 04] Creating Interactive UI/UX Screens with LVGL 9 on ESP32: Implementing On-Screen Keyboard]
https://youtu.be/ogXSDtYLQ7M
[LVGL 9, [Ep. 03] Creating Stunning UI on ESP32 with LVGL: A Step-by-Step Guide]
https://youtu.be/PdpRFgsxTwg
[LVGL 9, [Ep. 02], Examples, We can understand better and faster through LVGL Examples]
https://youtu.be/NlU4DTx7_1k
[LVGL 9, [Ep. 01], From Scratch to Benchmark, For newbie/beginner/starter]
https://youtu.be/s4_fUwhw-dI
[LVGL Projects]
https://www.youtube.com/playlist?list=PLnq7JUnBumAzjd7Nz6O6fIegE49LAMBFv
#LVGL #Tutorial #thatproject LVGL Tutorial with ESP32, How to update the screen with data obtained from sensors. #FreeRTOS #Task](https://i.ytimg.com/vi/g9j8FfF2GJ8/mqdefault.jpg)
![Android Apps on Raspberry Pi | Waydroid
Tutorial: https://pimylifeup.com/raspberry-pi-waydroid/
[Pironman Case]
https://amzn.to/3YZ5JJV
[CrowView Note]
https://amzn.to/4fCNm4v Android Apps on Raspberry Pi | Waydroid](https://i.ytimg.com/vi/gQzSF2qKjNw/mqdefault.jpg)
![Easy USB Host For Keyboard or Mouse Input for ESP32-S2/S3, #USB #HOST #INPUT
The library we will introduce today in the Finding Cool Project is the USB HOST library that runs on ESP32-s2/s3. You can very easily use a USB keyboard or USB mouse as an input device in the Arduino environment.
[EspUsbHost]
https://github.com/tanakamasayuki/EspUsbHost
[ESP32-S3-DevKitC-1-N32R8V Development Board]
https://amzn.to/42VB55R
[ESPRESSIF USB Host]
https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/api-reference/peripherals/usb_host.html
[Lets use USB Keyboard and Mouse on ESP32-S2/S3! IDF Version]
https://youtu.be/WPlPRkPx1_8
[[DIY] I made a H/W Hotkey to Mute Microphone in Zoom using ESP32-S3!]
https://youtu.be/u1t1nMzyvqg
[Auto Key Input USB Keyboard using ESP32-S2 (based on Keyset)]
https://youtu.be/AJ1lSk_aK6M
#Native #USB #ESP32S3 #ESP32S2 #USBHOST Easy USB Host For Keyboard or Mouse Input for ESP32-S2/S3, #USB #HOST #INPUT](https://i.ytimg.com/vi/gg58sClHjIg/mqdefault.jpg)
![E-Paper Map without Internet Connection!
This project transforms a Raspberry Pi Zero 2 W into a fully offline GPS map viewer with a Waveshare E-Paper display. It uses a GPS module to track your real-time location and displays it on a locally stored map — with no need for internet access.
Map tiles are preloaded in .mbtiles format and rendered directly on the E-Paper screen using Python. The system updates the map only when movement exceeds a user-defined threshold, making it ideal for low-power, off-grid navigation.
Whether youre hiking, biking, or exploring the outdoors, this project gives you a minimal, power-efficient, and internet-free way to stay oriented.
(Previous Project)[Offline MAP, GPS Tracker with E-Paper Display | Raspberry Pi Zero 2 W Portable Map Project]
https://youtu.be/xLXnn48pIV4
[Offline Map Downloader]
https://github.com/0015/OfflineMapDownloader
[Offline Map Viewer for E-Paper]
https://github.com/0015/Offline-Map-Viewer-for-E-Paper
[7.3inch E Ink Spectra 6 (E6) Full Color]
https://www.waveshare.com/7.3inch-e-paper-hat-e.htm?&aff_id=116255
https://amzn.to/3ZhvdDc
[18650 Battery Shield]
https://amzn.to/3H6OrVY
[REYAX GNSS Module]
https://amzn.to/4kldao2
https://www.digikey.com/en/products/detail/reyax/RYS352A/22206992 E-Paper Map without Internet Connection!](https://i.ytimg.com/vi/ggmhJsFT2ZE/mqdefault.jpg)

![Arduino Stella Review: AirTag-Style UWB
In this video, I test and review the Arduino Stella, Arduino’s first official UWB (Ultra-Wideband) device — and it feels a lot like building your own AirTag!
I show how the iPhone detects Stella using BLE + UWB via Nearby Interaction, allowing real-time distance and direction tracking.
The Stella features the TrueSense DCU040 UWB module (based on NXP’s Trimension SR040) and a Nordic nRF52840 BLE microcontroller.
It offers ~10cm accuracy and ~15dBm transmit power, powered by a compact CR2032 coin cell.
Whether youre into smart access, asset tracking, or location-aware projects, this is a great starting point.
[StellaUWB GitHub]
https://github.com/Truesense-it/StellaUWB
[Arduino Stella Datasheet]
https://docs.arduino.cc/resources/datasheets/ABX00131-datasheet.pdf
*Previous UWB Projects
[UWB Trilateration with ESP32, DW3000 #LocalPositioning]
https://youtu.be/NjHMXEOxNRE
[XYZ Position Mapping From Real To Virtual]
https://youtu.be/7oehpBjpucU Arduino Stella Review: AirTag-Style UWB](https://i.ytimg.com/vi/gunoo_Z4w3E/mqdefault.jpg)
![This $10 Radar Tracks You Through a Wall — LD2450 + ESP32-S3
Is the HLK-LD2450 the ultimate 24GHz presence sensor for your next DIY smart home build? In this video, we put this affordable millimeter-wave radar to the ultimate test to see what it can really do!
Welcome back to ThatProject! Today, we are taking the LD2450 out of the lab and into the real world. We’ll cover the crucial antenna orientation mistake you need to avoid, test its fast-object tracking capabilities at a local indoor skatepark, and answer the ultimate question: Can a 24GHz signal penetrate solid wood doors and drywall?
While it works way better than expected for the price, it does have a few quirks you need to know about before hooking it up to your ESP32. Lets dive in!
Build:
· HLK-LD2450 24GHz mmWave radar
[https://amzn.to/4czo3ks]
· ESP32-S3 + 4.2 reflective LCD, 400 × 300, 1-bit [https://www.waveshare.com/esp32-s3-rlcd-4.2.htm?&aff_id=116255]
· 3D-printed bracket, M2.5 mount
#24GHz #Radar #LD2450 #RLCD This $10 Radar Tracks You Through a Wall — LD2450 + ESP32-S3](https://i.ytimg.com/vi/hhtvjLvmlTY/mqdefault.jpg)
![The Ultimate Animated Face for ESP32 | 17+ Expressions
Ever felt like your PC or AI assistant needed a bit more... personality? In this video, I’ll show you how I turned the tiny ESP32-C6-Geek into a reactive, emotional desktop companion using my new open-source library: LVGL Kawaii Face.
I’ve released the LVGL Kawaii Face component for LVGL 9. It features:
17+ Expressions: From Excited and Blushing to Sleepy and Working Hard.
Procedural Animation: No heavy GIF files—everything is calculated in real-time for fluid motion.
Software: LVGL 9.5, ESP-IDF 5.5
[Links & Resources]
- GitHub Repo
+ https://github.com/0015/lvgl_kawaii_face
- Hardware Used
- Waveshare ESP32-C6-Geek
+ https://www.waveshare.com/esp32-c6-geek.htm?&aff_id=116255
- Waveshare ESP32-S3 1.8inch Knob
+ https://www.waveshare.com/esp32-s3-knob-touch-lcd-1.8.htm?&aff_id=116255 The Ultimate Animated Face for ESP32 | 17+ Expressions](https://i.ytimg.com/vi/iCm50dTcAtc/mqdefault.jpg)


![TJpgDec vs JPEGDEC, Comparing JPEG decoders! #ESP32S3 #MCU #Arduino #ESP32CAM #ZX2D10GE01R-V4848
The most used image format in the MCU environment is probably JPEG. The JPEG decoder used to draw this on the screen is very important. Lets compare the two most popular JPEG decoders.
[Wireless ESP32CAM to ESP32 Display]
https://youtu.be/OdEmfRKDJts
[TJpg_Decoder]
https://github.com/Bodmer/TJpg_Decoder
[JPEGDEC]
https://github.com/bitbank2/JPEGDEC TJpgDec vs JPEGDEC, Comparing JPEG decoders! #ESP32S3 #MCU #Arduino #ESP32CAM #ZX2D10GE01R-V4848](https://i.ytimg.com/vi/iqlV3n4yMDc/mqdefault.jpg)