Hackaday (RSS Feed) on Nostr: A CO2 Traffic Light On An SAO <img width="800" height="450" ...
A CO2 Traffic Light On An SAO
<img width="800" height="450" src="![](https://hackaday.com/wp-content/uploads/2024/11/CO2_SAO_v1-featured.png?w=800")
; alt=""/>[David Bryant] clearly has an awareness of the impact of an excess concentration of CO2 in the local environment and has designed an SAO board to add a CO2 traffic https://hackaday.com/2024/11/06/a-co2-traffic-light-on-an-sao/
https://hackaday.com/2024/11/06/a-co2-traffic-light-on-an-sao/
<img width="800" height="450" src="
; alt=""/>[David Bryant] clearly has an awareness of the impact of an excess concentration of CO2 in the local environment and has designed an SAO board to add a CO2 traffic https://hackaday.com/2024/11/06/a-co2-traffic-light-on-an-sao/https://hackaday.com/2024/11/06/a-co2-traffic-light-on-an-sao/