tokaido lug 2019-03-09

Transcript

1. RASPI
   CO2  
   20193   IN  

2. 
   

3. 
   •
    • EJUG, mikutter, Tokaido LUG

4.  …   … )'!*%(3&$ … .3*%+2
   &  #,3&-1…

   /0 … " … 
   2…

5. 
   
   
   
     
   
   
   
   

6. 
   CO2 

7. 
    • RasPi 3B(+) • MH-Z19 • Winsen  •

    CO2   
   • 0 ~ 2,000 ppm, 0 ~ 5,000 ppm • (50ppm + 3% reading value) • PWM, UART • https://www.winsen-sensor.com/d/files/infrared-gas-sensor/mh-z19b-co2-ver1_0.pdf

8. 
    •  400 ppm • https://ds.data.jma.go.jp/ghg/kanshi/ghgp/co2_trend.html • ppm

   
    • Parts Per Million  •  • 1ppm = 0.0001% • 400 ppm = 400 x 0.0001 % = 0.04%

9. 
     • 1,000 ppm (0.1%)  • https://www.mhlw.go.jp/bunya/kenkou/seikatsu-eisei10/

   • !"  1,000 ppm  $ 
    % "  #

10. MY NEW GEAR…

11. 
     • 5V, GND, Tx, Rx
    

12. 
     •   • Python  
     

    • https://github.com/UedaTakeyuki/mh-z19 •  null   • Pre-Heat 3min

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     • 
     • 400 ppm   !" •

    20 $ 400ppm   #  

14. 
     •
    : 740 •
    : 580

15. 
     • *+ &'  • &'2: 398 ~ 500,

    972: 650 ~ 1450 • -, )  • &'2: 550 ~ 600, 972: 700 ~ 900 • !# 1534.(56 • .
    8$ • 0"
    /% 8$

16. GOLANG
     • Python &!%/- Golang .29 • Serial 7;*5

     # #$1F https://github.com/tarm/serial • Serial A3"&:
    ,)46 API endpoint @  • &>A3'+E29 • API endpoint  Golang + PostgreSQL + gorm + docker • POST  B0(=8C?  DB D< 

17. 
     •   • Web UI  • '

    " #! • Slack  • CO2  % 
    • TVOC &$

18.