Swagbadge 101: Hardware and SAOs
summary
Conference badge built around a Lolin32 (ESP32) running MicroPython with only five main parts: Lolin32 (ESP32), two 0.96" I2C OLEDs, and two buttons, and about ~294 badges produced for linux.conf.au 2021. Design used KiCad, includes onboard capacitive touch sliders, USB charging (LED shows charging vs charged), and four SAO 6‑pin standard headers for add‑ons. Manufacturing hiccups: a wrong OLED pinout variant and one PCB row misfabricated, and many badges required manual pin soldering and header work.
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chapters (19)
- 0:00Intro
- 1:29History Lesson
- 3:11Challenges in 2020
- 6:48The Pitch
- 7:58The Name
- 8:52Lowland 32 ESP32
- 9:30What is ESP32
- 11:28ESP32 Schematic
- 13:20ESP32 Summary
- 15:25OLEDs
- 18:20Sliders
- 20:36PCB Sculpting
- 25:38SAOs
- 26:15Addon headers
- 27:48Addons
- 30:21Screw Connection
- 30:55Solder Rocket
- 36:07Questions
- 42:56Overhead Camera
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