Uploaded September 2025 | Updated September 2026, 2 weeks ago
Miloš builds a custom @duolingo -inspired owl that sits on his monitor and reminds him to complete his Spanish lessons. Using an ESP32-C6, dual LCD displays for expressive eyes, a DFPlayer Mini for sound, and a 3D printed model, the owl can show emotions, play sounds, and even get angry if lessons are skipped. All design files, code, and details are available on the element14 Community: bit.ly/4mPjpS1
Chapters:
01:04 The Plan
03:18 The Electronics
04:14 The Schematics
04:54 The 3D Model
06:13 The Code
09:17 Assembly
09:59 The Demo
#ESP32 #3DPrinting #DIY #duolingo
Engage with the element14 presents team on the element14 Community - suggest builds, find project files and behind the scenes video: bit.ly/3tmdewv
Visit the element14 Community for more great activities and free hardware:
Tech spotlights: bit.ly/3qPrDhM
RoadTest and Reviews: bit.ly/3pV5Bux
Project14: bit.ly/31wbnJY
Miloš builds a custom @duolingo -inspired owl that sits on his monitor and reminds him to complete his Spanish lessons. Using an ESP32-C6, dual LCD displays for expressive eyes, a DFPlayer Mini for sound, and a 3D printed model, the owl can show emotions, play sounds, and even get angry if lessons are skipped. All design files, code, and details are available on the element14 Community: bit.ly/4mPjpS1
Chapters:
01:04 The Plan
03:18 The Electronics
04:14 The Schematics
04:54 The 3D Model
06:13 The Code
09:17 Assembly
09:59 The Demo
#ESP32 #3DPrinting #DIY #duolingo
Engage with the element14 presents team on the element14 Community - suggest builds, find project files and behind the scenes video: bit.ly/3tmdewv
Visit the element14 Community for more great activities and free hardware:
Tech spotlights: bit.ly/3qPrDhM
RoadTest and Reviews: bit.ly/3pV5Bux
Project14: bit.ly/31wbnJY



![Order up! Compact Pi Zero announcer!
In this video, @lorrainbow tackles a familiar café problem: noisy spaces and unclear order callouts. Using a @raspberrypi Zero, keypad, OLED screen, and USB audio, she designs a compact announcer that plays clear, pre recorded numbers at the press of a button. Along the way, she works through real world challenges of a queue management system, from slow installs on the Pi Zero and audio format conversions to keypad wiring, enclosure choices, and building a phone-based workflow for recording and uploading clips. The result is a practical, human centred project with potential far beyond cafés, including accessibility-focused communication tools, find the supporting files and other projects on the #element14community : https://bit.ly/4vfcCWZ
#RaspberryPiProjects #DIYElectronics #EmbeddedAudio
[01:14]-The Layout
[03:59]-Box 2.0
[05:17]-Speaker test
[06:30]-OLED test
[08:22]-keypad test
[10:08]-The app
[14:44]-The fancy box
[17:05]-Demo
Engage with the element14 presents team on the element14 Community - suggest builds, find project files and behind the scenes video: https://bit.ly/3tmdewv
Visit the element14 Community for more great activities and free hardware:
Tech spotlights: https://bit.ly/3qPrDhM
RoadTest and Reviews: https://bit.ly/3pV5Bux
Project14: https://bit.ly/31wbnJY Order up! Compact Pi Zero announcer!](https://i.ytimg.com/vi/bMy0vsFI6IA/mqdefault.jpg)

![How to Build an RF Modulator with a Pi Pico to Play Games on a Sony Watchman CRT
Andy takes a 1987 Sony Watchman portable CRT TV and transforms it into a working retro arcade system, without modifying the TV itself. Using a Raspberry Pi Pico, custom NTSC video generation, a hand-built RF modulator, and an Atari joystick, he codes an original Space Invaders–style game that broadcasts wirelessly to the Watchman. Along the way, he tackles composite video generation from scratch, resistor ladder DAC design, precise timing with PIO and DMA, and building RF circuitry from a 1985 magazine schematic. See the build blog here: https://bit.ly/4phJUBL
[00:34] Project Overview
[02:34] Generating Composite Video
[10:47] DIY RF Modulator
[15:10] Programming a Retro Game
[16:43] The Reveal
Visit the element14 Community for more great activities and free hardware:
Tech spotlights: https://bit.ly/3qPrDhM
RoadTest and Reviews: https://bit.ly/3pV5Bux
Project14: https://bit.ly/31wbnJY
#raspberrypi #sony #vintageelectronics #analogue How to Build an RF Modulator with a Pi Pico to Play Games on a Sony Watchman CRT](https://i.ytimg.com/vi/bh1RnC1fyyE/mqdefault.jpg)




