After creating a project that used literally hundreds of wires on a breadboard, the time had finally come for me to up my electronics project design game and create my first custom PCB. I'll cover the basics of layout and design, the cost and ordering process, unboxing and reviewing the PCB and finally how I redesigned my previous breadboard project into a permanent and useful device... complete with Home Assistant integration via MQTT, of course!

Written Guide to this Project: https://resinchemtech.blogspot.com/20...
Github Repo with Code, Design Files and Wiki: https://github.com/Resinchem/Analog-L...

Chapter Links:
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00:00 Intro
01:09 Original Breadboard Design
02:26 PCB Schematic Overview
05:40 PCB Traces Overview
09:05 Ordering the PCB and Cost
10:44 PCB Unboxing and Review of PCB
12:02 Test Fitting and the First Design Issue
14:04 Standoffs and Assembly Planning
15:16 Initial Component Mounting
16:24 Designing and Print the Faceplate
18:54 The ILI9341 Touch Display
20:05 Final Assembly
21:45 First Power On Test and Final Build
23:50 Features and Home Assistant Integration Demo
26:52 Version 2 Improvements
28:08 Lessons Learned and Wrap Up

Parts Used or Shown:
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Wemos D1 Mini (ESP8266): https://amzn.to/46dPwSW
MCP23017 Port Expander: https://amzn.to/3QD0JGI
2.2 kΩ Resistors: https://amzn.to/3sIuHky
180 Ω Resistors: https://amzn.to/3sEjxxe
75 Ω Resistors: https://amzn.to/3SI4bme
Red LEDs (29 mm long leads): https://amzn.to/47eEr56
Yellow LEDs (29 mm long leads): https://amzn.to/47x4kwV
Green LEDs (29 mm long leads): https://amzn.to/47bEz5D
Variable Buck Converter: https://amzn.to/49vgEzD
Barrel Jack: https://amzn.to/3R0gEjY
Barrel Jack Elbow: https://amzn.to/3QZi7qv
Normally Open Pushbuttons: https://amzn.to/3SHvmNV
5V 5A Power Supply: https://amzn.to/3FZwdSv
M3 Brass Standoffs: https://amzn.to/3FVZ5v1
Gorilla Super Glue: https://amzn.to/3MILU4u

Optional items for LED Display:
ILI9341 2.8" TFT Display: https://amzn.to/3SDlOTZ
90° Pin Header: https://amzn.to/40DAqom

Some of these links may be Amazon affiliate links. Use of these links will not affect your pricing, but as an Amazon affiliate this channel may earn a small commission if you make a purchase.


Additional Information and Links:
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EasyEDA: https://easyeda.com/
Fusion 360: https://www.autodesk.com/products/fus...
TinkerCad: https://www.tinkercad.com/
Dorffmeister's ILI9341 ESPHome Library: https://github.com/kdorff/esphome-dis...

If you'd like to help support this channel, or just say thanks, you can consider buying me a cup of coffee:
https://www.buymeacoffee.com/resinche...

#pcb #homeassistant #mqtt