Show HN: Enviro+ for Raspberry Pi – Environmental sensors
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Show HN: Enviro+ for Raspberry Pi – Environmental sensors
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Re: Show HN: Enviro+ for Raspberry Pi – Environmental sensors
#2By an incredible coincidence, I am putting together something to do exactly what this does. One exception: I am including a CO2 sensor to monitor and collect atmospheric CO2 levels.
I'm guessing a there is enough I/O left on a Pi 0w such that a CO2 sensor can be added to the Enviro+?
Re: Show HN: Enviro+ for Raspberry Pi – Environmental sensors
#3By an incredible coincidence, I am putting together something to do exactly what this does. One exception: I am including a CO2 sensor to monitor and collect atmospheric CO2 levels. I'm guessing a there is enough I/O left on a Pi 0w such that a CO2 sensor can be added to the Enviro+?
Which sensor are you looking at? I'm sure it could run alongside the rest of Enviro+!
Re: Show HN: Enviro+ for Raspberry Pi – Environmental sensors
#4By an incredible coincidence, I am putting together something to do exactly what this does. One exception: I am including a CO2 sensor to monitor and collect atmospheric CO2 levels. I'm guessing a there is enough I/O left on a Pi 0w such that a CO2 sensor can be added to the Enviro+?
Which sensor are you looking at? I'm sure it could run alongside the rest of Enviro+!
The most likely candidate is the TelAire T6613 [1]. Like most sensors in this price range, it reports data on I2C.
[1] https://www.co2meter.com/collections/0-1-co2/products/t6613-...
Re: Show HN: Enviro+ for Raspberry Pi – Environmental sensors
#5Is there a case option?
Re: Show HN: Enviro+ for Raspberry Pi – Environmental sensors
#6Earlier quoted context omitted.
Which sensor are you looking at? I'm sure it could run alongside the rest of Enviro+!
The most likely candidate is the TelAire T6613 [1]. Like most sensors in this price range, it reports data on I2C. [1] https://www.co2meter.com/collections/0-1-co2/products/t6613-...
You'd be fine then!
Re: Show HN: Enviro+ for Raspberry Pi – Environmental sensors
#7Is there a case option?
Obviously for the sensors to work they need to be exposed to air. We have a tutorial coming next week on how to make a low-cost enclosure for use outdoors - is that what you mean?
Re: Show HN: Enviro+ for Raspberry Pi – Environmental sensors
#8Weirdly coincidental timing on this! I've been working on a PCB design (FeatherWing form factor) to track weather data on my hikes, making use of a BME280 and a GPS module. First revision of the board[1], I discovered that the sensors started out accurate, then drifted up to a steady 3° above ambient. Probably because the GPS module was heating up. So last night I found myself reading up on design considerations for temperature sensors [2], including specific things like the cutout you have on the left side of this board.
I'm guessing you designed this — any advice as I embark on designing a second revision of my hiking log?
[1] https://twitter.com/josecastillo/status/1134128199972130816 [2] http://www.ti.com/lit/an/snoa967a/snoa967a.pdf
Re: Show HN: Enviro+ for Raspberry Pi – Environmental sensors
#9Re: Show HN: Enviro+ for Raspberry Pi – Environmental sensors
#10Weirdly coincidental timing on this! I've been working on a PCB design (FeatherWing form factor) to track weather data on my hikes, making use of a BME280 and a GPS module. First revision of the board[1], I discovered that the sensors started out accurate, then drifted up to a steady 3° above ambient. Probably because the GPS module was heating up. So last night I found myself reading up on design considerations for…
Hi Joey - yes, this is one of our boards. :-)
Are you sure it's the GPS module - 3 degrees sounds a lot for that? I'd try to take some measurements to confirm it before changing anything.
Which Feather board are you using?