Uploaded April 2026 | Updated September 2026, 2 weeks ago
@MAYERMAKES takes on the challenge of designing a fully Arduino Uno–compatible development board using KiCad, guiding viewers through the entire process from template selection to a manufacturing-ready PCB. Instead of abstract theory, the video focuses on real design decisions, including choosing an ATtiny3226 that doesn’t yet exist in an Uno form factor, handling USB C power and data safely, integrating UPDI programming, and avoiding common schematic and layout mistakes that can derail a first board. Along the way, Clem highlights practical hurdles—such as matching symbols to real footprints, managing logic-level compatibility, routing USB data lines, and running proper design rule checks—while explaining how KiCad’s tighter schematic-to-PCB integration makes iteration easier. The result is a clear, hands-on walkthrough that shows not just how to use KiCad 9, but how to think like a PCB designer when building reliable, reproducible hardware. You can find his schematics on the element14 Community: bit.ly/4vyeI4l
00:00 Intro
00:22 Welcome to the KiCad 9 Tutorial
01:06 Starting a Project from Template
01:56 Schematic Editor Basics
02:19 Symbols, Wires and Labels
04:04 Schematic-to-PCB Workflow
04:57 Connections, Junctions and Dots
05:31 Placing the ATtiny Microcontroller
07:24 No-Connect Flags
07:44 Adding the LDO, Caps and Resistors
09:16 Power Conventions and Grounding
09:43 3.3V / 5V Selector Jumper
10:49 Labelling Sections in the Schematic
11:10 Adding the USB-C Receptacle
12:25 CC Resistors and Shield
13:20 Reading the Datasheet Power Scheme
13:47 USB-to-UART Bridge and UPDI Switch
15:10 Mapping the Arduino Pinout to the ATtiny
16:40 Assigning Footprints
17:31 Selecting SMD Sizes (0603)
18:52 Custom Parts via Ultra Librarian
20:31 Importing Symbol and Footprint Libraries
21:20 Cleaning Up the Custom Symbol
23:17 Voltage Regulator Footprint
23:42 Update PCB from Schematic
24:09 Untangling the Rat's Nest
25:40 Routing the First Traces
26:46 USB Differential Pair Routing
28:14 Length Tuning the Pair
29:36 Switching to a 4-Layer Board
30:47 Ground Fill Zones
31:33 Silkscreen Labels and Title Block
33:09 3D Viewer Check
33:28 Adding Logos and Licence Info
34:38 Soldermask Trick for Gold Text
35:56 Running the DRC
37:08 3D Viewer Final Check
37:42 Uploading to the Manufacturer
38:50 Board Render Preview
39:16 Boards Arrive and Assembly
40:42 Outro
#kicad #pcbdesign #arduino
=================================================================================
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
@MAYERMAKES takes on the challenge of designing a fully Arduino Uno–compatible development board using KiCad, guiding viewers through the entire process from template selection to a manufacturing-ready PCB. Instead of abstract theory, the video focuses on real design decisions, including choosing an ATtiny3226 that doesn’t yet exist in an Uno form factor, handling USB C power and data safely, integrating UPDI programming, and avoiding common schematic and layout mistakes that can derail a first board. Along the way, Clem highlights practical hurdles—such as matching symbols to real footprints, managing logic-level compatibility, routing USB data lines, and running proper design rule checks—while explaining how KiCad’s tighter schematic-to-PCB integration makes iteration easier. The result is a clear, hands-on walkthrough that shows not just how to use KiCad 9, but how to think like a PCB designer when building reliable, reproducible hardware. You can find his schematics on the element14 Community: bit.ly/4vyeI4l
00:00 Intro
00:22 Welcome to the KiCad 9 Tutorial
01:06 Starting a Project from Template
01:56 Schematic Editor Basics
02:19 Symbols, Wires and Labels
04:04 Schematic-to-PCB Workflow
04:57 Connections, Junctions and Dots
05:31 Placing the ATtiny Microcontroller
07:24 No-Connect Flags
07:44 Adding the LDO, Caps and Resistors
09:16 Power Conventions and Grounding
09:43 3.3V / 5V Selector Jumper
10:49 Labelling Sections in the Schematic
11:10 Adding the USB-C Receptacle
12:25 CC Resistors and Shield
13:20 Reading the Datasheet Power Scheme
13:47 USB-to-UART Bridge and UPDI Switch
15:10 Mapping the Arduino Pinout to the ATtiny
16:40 Assigning Footprints
17:31 Selecting SMD Sizes (0603)
18:52 Custom Parts via Ultra Librarian
20:31 Importing Symbol and Footprint Libraries
21:20 Cleaning Up the Custom Symbol
23:17 Voltage Regulator Footprint
23:42 Update PCB from Schematic
24:09 Untangling the Rat's Nest
25:40 Routing the First Traces
26:46 USB Differential Pair Routing
28:14 Length Tuning the Pair
29:36 Switching to a 4-Layer Board
30:47 Ground Fill Zones
31:33 Silkscreen Labels and Title Block
33:09 3D Viewer Check
33:28 Adding Logos and Licence Info
34:38 Soldermask Trick for Gold Text
35:56 Running the DRC
37:08 3D Viewer Final Check
37:42 Uploading to the Manufacturer
38:50 Board Render Preview
39:16 Boards Arrive and Assembly
40:42 Outro
#kicad #pcbdesign #arduino
=================================================================================
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)





