PragProg Customers

Build a Weather Station with Elixir and Nerves: SGP30 vs SGP40

fynn

fynn

Build a Weather Station with Elixir and Nerves: SGP30 vs SGP40

This is as much a suggestion as a question, as a note for others.

Locally the SGP30 wasn’t available, so I ordered a SGP40. On page 53, during ICS2.detect_devices() this sensor isn’t found.

At this point in my journey, I’m not sure if it’s a faulty board, a new board so not mapped or something else. Tried working cables, sequence, all powered on, so I’m going with maybe faulty, as the 0x59 isn’t listing.

Thankfully it’s not the main focus of the next few pages so I’ll have some time to figure it out, or figure out where to begin. Likey with a SGP30 on backorder.

So the suggestion… maybe a footnote to what to consider/explore if it’s not as listed… Or it could just be me :slight_smile:

2 comments
#suggestion/book-build-a-weather-station-with-elixir-and-nerves
0 1285 2

Popular Prag Prog topics Top

sdmoralesma
PragProg Customers

Web Development with Clojure, Third Edition: migrations/create not working: p159
Title: Web Development with Clojure, Third Edition - migrations/create not working: p159 When I execute the command: user=> (create-...
#question/book-web-development-with-clojure-third-edition
5 1082 2
New
mikecargal
PragProg Customers

Hands-on Rust: can_place logic is "inside out"
Title: Hands-On Rust (Chapter 11: prefab) Just played a couple of amulet-less games. With a bit of debugging, I believe that your can_p...
#errata/book-hands-on-rust
22 1618 20
New
jdufour
PragProg Customers

The Cucumber for Java Book:
Hello! On page xix of the preface, it says there is a community forum "… for help if your’re stuck on one of the exercises in this book… ...
#question/book-the-cucumber-for-java-book
3 1137 1
New
conradwt
PragProg Customers

Programming Phoenix 1.4: Chapter 11 - Extracting Rumbl and RumbleWeb (Page 237, 238, 240)
First, the code resources: Page 237: rumbl_umbrella/apps/rumbl/mix.exs Note: That this file is missing. Page 238: rumbl_umbrella/app...
#errata/book-programming-phoenix-1-4
1 1105 2
New
joepstender
PragProg Customers

Programming Phoenix LiveView: errata and remarks Version B2.0
The generated iex result below should list products instead of product for the metadata. (page 67) iex> product = %Product{} %Pento....
#errata/book-programming-phoenix-liveview
0 1798 20
New
brian-m-ops
PragProg Customers

Python Testing with pytest, Second Edition: cards pip install error (page 12)
#book-python-testing-with-pytest-second-edition Hi. Thanks for writing the book. I am just learning so this might just of been an issue ...
#errata/book-python-testing-with-pytest-second-edition
4 1175 3
New
kevinjyh
PragProg Customers

Python Testing with pytest, Second Edition:Abou epub format
Is the book’s epub format available to read on Google Play Books?
#question/book-python-testing-with-pytest-second-edition
0 1118 3
New
adamwoolhether
PragProg Customers

Powerful Command-Line Applications in Go: Exercise Solutions (many pages)
Is there any place where we can discuss the solutions to some of the exercises? I can figure most of them out, but am having trouble with...
#question/book-powerful-command-line-applications-in-go
17 1370 9
New
mert
PragProg Customers

Agile Web Development with Rails 7: page 152, page 153:
AWDWR 7, page 152, page 153: Hello everyone, I’m a little bit lost on the hotwire part. I didn’t fully understand it. On page 152 @rub...
#question/book-agile-web-development-with-rails-7
0 1223 4
New
davetron5000
PragProg Customers

Bug with dx/build - how to workaround until fix is up
Hello faithful readers! If you have tried to follow along in the book, you are asked to start up the dev environment via dx/build and ar...
/book-ruby-on-rails-background-jobs-with-sidekiq#errata
3 1149 19
New

Other popular topics Top

malloryerik
Frontend Developer Forum>Chat/Discussions

Svelte - what do you think about it?
Any thoughts on Svelte? Svelte is a radical new approach to building user interfaces. Whereas traditional frameworks like React and Vue...
#opinions/svelte
54 3310 17
New
ohm
Tech Chat

Games! Which do you play?
Which, if any, games do you play? On what platform? I just bought (and completed) Minecraft Dungeons for my Nintendo Switch. Other than ...
#games
245 5072 101
New
axelson
Cross-Platform Dev Forum>Apps/Libraries/Tools

Obsidian – a cross platform app to help you create a knowledge base with Markdown files
I’ve been really enjoying obsidian.md: It is very snappy (even though it is based on Electron). I love that it is all local by defaul...
#macos#windows#linux/markdown#obsidian#apps
38 3782 19
New
PragmaticBookshelf
Backend Developer Forum>Learning Resources

Concurrent Data Processing in Elixir
Learn different ways of writing concurrent code in Elixir and increase your application's performance, without sacrificing scalability or...
#pragprog/elixir#published-book/book-concurrent-data-processing-in-elixir
78 3397 25
New
AstonJ
Health & Diet

Did you manage to avoid covid19?
Seems like a lot of people caught it - just wondered whether any of you did? As far as I know I didn’t, but it wouldn’t surprise me if I...
#covid19
190 3595 80
New
AstonJ
Health & Diet

David Sinclair's new Lifespan podcast
We’ve talked about his book briefly here but it is quickly becoming obsolete - so he’s decided to create a series of 7 podcasts, the firs...
#health#bio-hackers#david-sinclair#podcasts
87 5714 50
New
PragmaticBookshelf
In The Spotlight

Spotlight: James Stanier (Author) Interview and AMA!
Author Spotlight James Stanier @jstanier James Stanier, author of Effective Remote Work , discusses how to rethink the office as we e...
#pragprog#remote/book-effective-remote-work
29 3856 12
New
AstonJ
Frontend Developer Forum>Chat/Discussions

Online Hand to eye coordination test
Was just curious to see if any were around, found this one: I got 51/100: Not sure if it was meant to buy I am sure at times the b...
#online-tools
4 3432 2
New
PragmaticBookshelf
In The Spotlight

Spotlight: VM Brasseur (Author) Interview and AMA!
Author Spotlight: VM Brasseur @vmbrasseur We have a treat for you today! We turn the spotlight onto Open Source as we sit down with V...
#author-spotlight/book-forge-your-future-with-open-source
16 3805 12
New
AstonJ
Artificial Intelligence Forum

DeepSeek (671B) running on a cluster of 8 Mac Mini Pros with 64GB RAM each
This is cool! DEEPSEEK-V3 ON M4 MAC: BLAZING FAST INFERENCE ON APPLE SILICON We just witnessed something incredible: the largest open-s...
#ai#macs/deepseek
0 2497 1
New
Back to top

Latest in PragProg

Agile Web Development with Rails 8_B6.0(page 139)
PragProg Customers
Effective Haskell: duplicate extension (page xx)
PragProg Customers
Agile Web Development with Rails 8_B6.0(page 126)
PragProg Customers
Hotwire Native for Rails Developers: env.local? true -> false (page 237)
PragProg Customers
Kotlin Coroutine Confidence: error handling suggestion (page 43)
PragProg Customers
Kotlin Coroutine Confidence: misleading image or text (p 20ish)
PragProg Customers
Kotlin Coroutine Confidence: not using kotlin style builder pattern (page 19ish)
PragProg Customers
Kotlin Coroutine Confidence: TimerApplication: won't app finish before timer?
PragProg Customers
Real-World Event Sourcing: duplicated paragraph (p. 30)
PragProg Customers
Agile Web Development with Rails 8_B6.0 "headless_chrome" related (page 189)
PragProg Customers
Real World Event Sourcing: typo, data elided for readability (p. 32)
PragProg Customers
I cannot download PDF versions of two books I purchased
PragProg Customers
Real-World Event Sourcing: Command to run EventStore on Docker doesn't allow access to Stream Browser (B4.0, page 81)
PragProg Customers
Hotwire Native for Rails Developers: import for R shortcut (pages 94-95)
PragProg Customers
Hotwire Native for Rails Developers: Tailwind 4 (page 44)
PragProg Customers
Tmux 3: "use save-buffer to copy text", p59
PragProg Customers
Tmux 3: status-left-length misdocumented, page 41
PragProg Customers
Real-World Event Sourcing: `handle_command` for subtract doesn't make sense (pg 8)
PragProg Customers
Network Programming in Elixir and Erlang:Designing a Simple Chat Protocol broadcast message (page 39)
PragProg Customers
Ash Framework B4: `mix ash.gen.domain Tunez.Music` fails (page 6)
PragProg Customers

View all threads ❯

Latest (all)

TrueSkill 2: An improved Bayesian skill rating system - Microsoft Research
In The News
Speeding up Terraform caching with OverlayFS
In The News
PostgreSQL: powa-archivist 5.0.2 is out!
Backend News
There’s nothing wrong with a thong made out of a keyboard
In The News
After market tumult, Trump exempts smartphones from massive new tariffs
In The News
Natural Language Is Now the Only No-Code Tool That Matters
In The News
AI Coding and The Peanut Butter & Jelly Problem
In The News
You might not need Websockets
In The News
Google Is Winning on Every AI Front
In The News
$70 Million in 60 Seconds: How Insider Information Helped Someone 28x Their Money
In The News
My first game and what I experienced during this process
Game Dev Chat/Discussions
Deno v2.1.12 released!
Frontend News
Rust: crates.io security incident: improperly stored session cookies
Backend News
CentOS Board Meeting Recap, April 2025
Linux News
Try Our New AI Website Builder for Free - WordPress.com
In The News

View all threads ❯

We ❤️ helpful members!

We reward our most helpful members via our MOTM scheme - by giving away a whopping 25 books per year!

Member of the Month

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

Categories:

Popular Portals

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

We're in Beta

About us Mission Statement See our Roadmap