1. The document discusses using M5Stack boards for both hobbies and work, listing several models used and frequently used sensor units like temperature, distance, and voltage sensors. 2. Examples of use cases are described, like temperature monitoring, logging, and measuring grease usage with sensors and M5Stack boards. 3. Common troubles encountered are discussed, such as I2C communication errors resolved by shortening cables or handling exceptions, and sensor failures addressed by changing sensors.

1. 趣味に仕事にM5STACK♥
Hobbies and work with M5Stack
M5 Japan Tour 2023 Spring Hiroshima @airpocket

2. airpocket
活動場所 Activity Location
Twitter! &
Protpedia / elchika / Qiita / IoTLT
M5Stack Japan Creativity Contest /
Hackaday Prize / ヒーローズ・リーグ/
etc…

3. 趣味のM5Stack/Hobby with M5Stack

4. 仕事のM5Stack/Work with M5Stack
Model Quntity Reasons
M5Stack Basic / Fire 11 Physical buttons
M5Stack Core2 for AWS 6 UI and IO flexibility
M5Stack StickC/C plus 2 Built-in IMU, Display
Atom Matrix 5 Inexpensive, Expressiveness
Atom Lite 17 Inexpensive

5. 使用頻度の高いユニット Frequently used
1. ToF / Ultra Sonic Distance Unit
Detect presence or absence of objects.
For measure cycle time.
For timing detection of other sensors. etc…

6. 使用頻度の高いユニット Frequently used
2. NCIR
For measuring product temperature .
More need for low FoV type “MLX90614 DCI”
!

7. 使用頻度の高いユニット Frequently used
3. V Meter
For analog signal input for industrial sensors.
EX. pneumatic and hydraulic pressure sensors.
I am looking forward to the AIN(4-20mA) Module.

8. 他にもたくさん！ And many more!

9. 使用例 Use Case
Product temperature monitoring
[Core2 AWS + NCIR + Relay]
Receive measurement timing
⇒ Measure temperature
⇒ Judge
⇒ Send interlock release signal

10. 使用例 Use Case
Product temperature logger
[Core2 AWS + NCIR]
Determines recording timing
based on temperature changes
over time using specified logic
and sends only the necessary
data to the server.

11. 使用例 Use Case
Product temperature logger
[Stick C + NCIR]

12. 使用例 Use Case
Grease usage measurement
[Basic + Weight]
1. Measure grease can weight
2. Detect grease can use
3. Re-measure grease can weight
4. Calculate weight used
5. Judgment
6. Display results

13. 使用例 Use Case
Analog Sensor Logger
[Basic + V Meter]

14. トラブルと解決 Troubles and Solutions
１．I2C communication error
Shorten the cable!
Don't forget to handle exceptions.
And Shorten the cable!
(I know i know… but, However,
there are often cases where we want to
extend the sensor cable…

15. トラブルと解決 Troubles and Solutions
２．ToF sensor failure
The product breaks down after about one year, probably due to
poor usage environment.
※Temperature -5~40℃ or higher and dusty
⇒Change from ToF to ultrasonic and see how it goes.

16. トラブルと解決 Troubles and Solutions
３．IP address shortage
Router/AP/DB/
Node-RED/MQTT/
File Server