Questions & Help>Questions

Start ntp on network connection on nerves

/nerves#networking#ntp#datetime
adrian

adrian

Start ntp on network connection on nerves

Hello,

I need to set the time for the nerves device. I’ve found GitHub - evokly/nerves_ntp · GitHub but it isn’t getting the time when using WiFi (I haven’t tried with a wired connection)

It looks like busybox contains the ntp package for synchronizing the datetime, is it possible to make it run on start?

Where should the configuration of the TimeZone live? in the config.ex file or maybe is possible to pass it as an option to the erlang VM?

Thanks!

6 comments
/nerves#networking#ntp#datetime
0 1446 6

First Post!

ConnorRigby

ConnorRigby

Nerves Core Team

check this blog post for a good description of NTP. All Systems Go: Creating your own startup checks with Nerves - DockYard

Linux stores time in utc, so you shouldn’t have to worry much about timezones i don’t think. Timex has support for Timezones also. There are some things to account for for Timex to work properly with Nerves though.

Post #2

Where Next?

View thread on forum (has 6 responses!)
nerves
networking
ntp
datetime
Home Questions & Help>Questions
/nerves#networking#ntp#datetime
0 1446 6
Last post

Popular in Questions Top

Harrisonl
Questions & Help>Questions

Deploying Elixir into ECS causing many "'global' at node :"xxxxx@10.0.X.X" requested disconnect from node :"xxxx@10.0.X.X" in order to prevent overlapping partitions"
We have an ECS cluster with 4 services, where each task joins a single cluster, via discovery ECS discovery service. Currently when I de...
#deployment
2 85473 3
New
WestKeys
Questions & Help>Questions

Mint vs Finch vs Gun vs Tesla vs HTTPoison etc
Currently suffering from paralysis by [HTTP client] analysis. This is rather unusual in Elixirland as there tends to be consensus on the ...
#http_client
252 22547 30
New
qwerescape
Questions & Help>Questions

How to get the call stack/stack trace at any point in code?
Is there a way to get the call stack or stack trace at any point in the code? Not from exceptions, but an expression that returns how the...
53 16219 4
New
fireproofsocks
Questions & Help>Questions

Defining Ecto Schemas (PostGres) to use NOT NULL in column definitions
I’m working on defining a simple Ecto schema for a table (in PostGres), but I don’t see where I can define a column as NOT NULL. Conside...
#ecto
29 14319 4
New
vac
Questions & Help>Questions

Formatting a string to PEM with headers and line breaks
Hi, I’m quite new in Elixir and I’m trying to format a string to a PEM format. I have the certificate value like MIIDBTCCAe2...... and I...
2 14886 7
New
belgoros
Questions & Help>Questions

Regex question for hyphen match
I’m not a pro in using Regex and can’t figure out why the following behaviour happens, especially if we take into account the difference ...
#learning-elixir
9 13631 10
New
ycv005
Questions & Help>Questions

BEAM file compliation error after degrading Erlang version from 22 to 21
I have followed this StackOverflow post to install the specific version of Erlang. And When I am running mix ecto.setup then getting fol...
/phoenix#erlang
33 15805 4
New
nobody
Questions & Help>Questions

How to get the server ip address?
Hi! In PHP: $_SERVER[‘SERVER_ADDR’] - in Elixir? Searched the docs for ip address and the web, no good results. Thanks!
/phoenix
19 49418 16
New
script
Questions & Help>Questions

Removing spaces and characters from string
If I have a string “1000 cfu/ml” . I want to remove the characters and / and space . So the string is like this "1000" What is the ...
#regex
11 14550 2
New
hariharasudhan94
Questions & Help>Questions

How to get struct from map - elixir?
Lets say I have map like this fetching from my database %{"_id" => #BSON.ObjectId<58eb1a7a9ad169198c3dXXXX>, "email" => ...
/phoenix#ecto#maps#structs
38 34931 34
New

Other popular topics Top

vertexbuffer
Questions & Help>Questions

Deleting item from a list
Hello, can anybody help here..? I have a list of players and I what to delete an element, but every for loop the list is reverting to ori...
7 24373 4
New
sorentwo
News>Announcing

Oban - Reliable and Observable Job Processing
Hello! tl;dr Announcing Oban, an Ecto based job processing library with a focus on reliability and historical observability. After spen...
/oban#ecto#postgres#job-processing
985 43487 311
New
Patoshizzle
Questions & Help>Questions

(Postgrex.Error) FATAL 28P01 (invalid_password) password authentication failed for user “postgres”
After calling mix ecto.create I get this error: 17:00:32.162 [error] GenServer #PID<0.412.0> terminating ** (Postgrex.Error) FATAL...
#ecto#postgres#troubleshooting
10 30105 20
New
chrismccord
News>Phoenix News

Phoenix 1.4.0 released!
Phoenix 1.4.0 released Phoenix 1.4 is out! This release ships with exciting new features, most notably with HTTP2 support, improved deve...
/phoenix#phoenix-release
688 31013 112
New
msaraiva
News>Announcing

Surface - A component-based library for Phoenix LiveView
Surface is an experimental library built on top of Phoenix LiveView and its new LiveComponent API that aims to provide a more declarative...
/phoenix#library#liveview#livecomponents#surface
564 43757 214
New
jerry
Questions & Help>Questions

Ecto query using like/ilike in query
Good day to you all. I have been struggling to get a query involving like and ilike to work. Can anyone assist me on this, please? pro...
#ecto
17 16956 10
New
belgoros
Questions & Help>Questions

Regex question for hyphen match
I’m not a pro in using Regex and can’t figure out why the following behaviour happens, especially if we take into account the difference ...
#learning-elixir
9 13631 10
New
joeerl
Questions & Help>Questions

Upgrading Elixir - how to check versions, delete, and upgrade?
Hello again - after a longish gap I’ve decided I really must dig into Elixir and see what’s been happening here - so I have a few questio...
#upgrade
63 41663 13
New
boundedvariable
Chat & Discussions>Discussions

Can we beat Kafka if we build it in Elixir?
I am going through the kafka architecture. All the features what the kafka is providing are already in Erlang. I would like hear your opi...
#distributed-systems
96 20730 29
New
lanycrost
Questions & Help>Questions

How To Implement if...else if...else condition
Hi everyone! I need implement if…else if…else condition from my elixir code, and anymore of this control flow structures not work proper...
#how-to-question
40 52356 6
New
Back to top

Latest Nerves Threads

Nerves Forum ❯

Questions & Help>Questions

Questions Questions ❯

Latest on Elixir Forum

Elixir Forum ❯

Sponsor Spotlight

Pragmatic Studio

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

Our Sponsors

Dashbit

Build Elixir applications with speed and confidence.

EEF

Supporting innovation across the BEAM ecosystem.

Coders51

We build reliable cloud platforms for business-critical systems.

AppSignal

Catch errors, track performance, monitor hosts and more.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Manning

Develop your skills with books, videos, and courses.

ElixirCasts

Producing high quality Elixir screencasts since 2017.

Software Mansion

The team behind Membrane, Popcorn, LiveDebugger. Available for hire.

Pragmatic Studio

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

View all our sponsors ❯

Categories:

Sub Categories:

Forums

Popular Tags

Our Sponsors

Dashbit

Build Elixir applications with speed and confidence.

EEF

Supporting innovation across the BEAM ecosystem.

Coders51

We build reliable cloud platforms for business-critical systems.

AppSignal

Catch errors, track performance, monitor hosts and more.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Manning

Develop your skills with books, videos, and courses.

ElixirCasts

Producing high quality Elixir screencasts since 2017.

Software Mansion

The team behind Membrane, Popcorn, LiveDebugger. Available for hire.

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