TIL Access supports keyword lists (Keyword) and maps (Map) out of the box, but not structs. There is a reason why Elixir does not implement Access behaviour for structs. Perfer data.key for accessing predefined atom keys of map or struct. Access be...
I want to enable my Nerves devices to talk to each other using Distributed Erlang. Here is my memo. Preparation Find hostname or IP address for each device When shelling into a Nerves device, we will see IP address and host name printed by nerves_mot...
I wanted to make a simple URL shortnener app like Bitly using Phoenix.LiveView. This article called URL shortener with Elixir and Phoenix by Aleksi Holappa was helpful when I started off. What I want to do User is able to create a short link to a gi...
I like the simplicity of SQLite for my local development; however when I deploy my app to a cloud platform like Gigalixir, Fly.io, etc, often PostgreSQL is preferred. I was wondering if I can switch between them based on MIX_ENV. Elixir version etc e...
にほんご The other day I played with DYP-A01 ultrasonic distance sensor on my Nerves-powered Raspberry Pi. Here is my note. Long story short I wrote an Elixir program that enables us to communicate with an ultrasonic sensor through serial ports on Rasp...
The other day I played with DYP-A01 ultrasonic distance sensor on my Nerves-powered Raspberry Pi. Here is my note. Long story short I wrote an Elixir program that enables us to communicate with an ultrasonic sensor through serial ports on Raspberry...
