I made a CO2 concentration meter for the purpose of room ventilation guide. The CO2 sensor is MH-Z19B, NDIR type.
A hand-washing timer with water sound detection, which uses the M5StickC's built-in microphone and does not require any external components.
M5StickC + Angle unit = Protractor (detecting range: 0-180 degrees）
M5StickV and M5StickC with HID Bluetooth Wireless or Atomic QR-Code reader
Analog clock for M5StickC whose background can be changed with PNG file data.
Using M5StickC on RoverC and JoyC with M5Atom attached to display direction of the RoverC.
I made a watch using M5StickC.
A "simple" binary clock for the M5StickC. Using NTP to set the time, and the RTC to display the time. No need to set a timezone either.
Loose meetings are a bad business culture in Japan. The device “NeckTimer” that can appeal to the surroundings casually solves on time!
Counting COCOA(COVID-19 Contact-Confirming Application) around you with M5StickC
A digital wearable D&D dice roller using the m5stickC and UI Flow
Using the M5StickC, we developed a product that allows you to wash your hands without touching the device.
When a specific user tweets a new tweet, it will appear on the M5StickC display and notify you.
This is a case about controlling GOPRO with M5StickC