Enviro+ for Raspberry Pi
Hardware
environmental sensor board
SHOW HN2019
397points
82comments
#56of 2,195 in 2019
Top 3%of 2019 by points
How HN took it
CuriousMostly questions and neutral comments
14 positive, 28 neutral or asking, 2 mixed, 8 critical, out of 52 comments about the project. Thread score +0.07.
Idea: 8 for, 4 againstPerformance: 0 for, 4 againstDesign: 3 for, 0 againstDocs: 1 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Useful cheap environmental monitoring for hobbyists and projects
From 4 comments
This looks great. I've been waiting for a nice, hackable, cheap set of environmental sensors! There's only one "improvement" I would like to see - an option to buy a cheaper…
m4x on HNBy coincidence I actually need this -- going to be doing some data analysis on indoor hydroponics grow rooms and this would give me all the environmental data I need if you…
sam0x17 on HNThis is amazing. I'm going to add this to a fun weekend project to monitor air quality in my neighborhood.
atonse on HNReally looking forward to using this. Our local Council has a few air quality monitors in strategic places and publish the results as open data. However, they are 6 months behind…
FerretFred on HN
Objections
BME280 temperature reading is affected by board and Pi heat
From 3 comments
The BME280 is not particular suited for ambient temperature measurements. It's for accurate and fast pressure and humidity sensing. Quote from the datasheet about the temp…
volkerp on HNI'd suggest breaking out this board to decouple it from rpi, since rpi heats up enough to make temperature readings from attached board inaccurate.
laacz on HNWeirdly 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…
josecastillo on HN
Sensors like particulate sensors are not very precise
From 1 comment
Was looking into something like this recently, but apparently a lot of the sensors out there aren't super precise: -…
kmfrk on HN
Pi adds unnecessary overhead for a simple sensor
From 1 comment
A raspberry is quite an overkill for an environmental sensor. You could achieve the same with an Cortex M4 (minus the microphone).
cf498 on HN
Requests
Schematics for the boards
From 2 comments
I love Pimoroni Modules, having used the MicroDot pHAT, Unicorn boards, Touch pHAT, (and several more). The only problem I have is that the libraries aren’t particularly well…
prashnts on HNAre the schematics available? Looks great!
orion138 on HN
A cheaper version without the display
From 1 comment
This looks great. I've been waiting for a nice, hackable, cheap set of environmental sensors! There's only one "improvement" I would like to see - an option to buy a cheaper…
m4x on HN
An enclosure for outdoor use
From 3 comments
Is there a case option?
xmichael999 on HNYeah it'd be great if there was some kind of enclosure and holes / open spaces for the sensors. Even better if there was a combined case which let you have the Raspberry Zero and…
vinayan3 on HNAnyone have experience making an enclosure for something like this to use outdoors? Thinking of like a Stephenson screen with a built in solar panel for powering the Pi + Hat.
matmann2001 on HN
Calibration guide
From 1 comment
Are the sensors pre-calibrated? I found that you can easily get cheap air quality sensors from China, the problem is that they could do better with calibration, which may require…
polskibus on HN
Questions
Whether a CO2 sensor can be added
From 1 comment
By 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…
JoeDaDude on HN
How the board attaches and whether soldering is needed
From 1 comment
I don't know anything about Pis, though I've seen one. How does this attach? Does it require soldering?
ones_and_zeros on HN
Alternatives named
Ruuvi sensors
From 1 comment
I was looking into some hobby sensors for home recently and came across this the Ruuvi [1]. I prefer this model to having on-board sensors. This doesn't do everything the Enviro+…
deanclatworthy on HN
Waveshare Pioneer600
From 1 comment
Very similar to Pioneer600, an expansion board for Raspberry Pi. https://www.waveshare.com/pioneer600.htm
darkhorn on HN
Awair
From 1 comment
I have been using https://getawair.com/ (2nd edition) for over 6 months and I can't recommend it enough.
alfozan on HN
MH-Z19 CO2 sensor
From 2 comments
Have you considered MH-Z19 ? I'm using it with success on hass.io platform.
polskibus on HNHave you considered the much cheaper MH-Z19 or even the CCS811? Doubt they're as capable or accurate but I'd be interested in hearing the reasons behind going with the pricier…
buildzr on HN