Tag: IoT

El Carrillon: playing MIDI songs on an 18-bell tower with a Raspberry Pi and Smalltalk

December 4, 2019

Some time ago I blogged about a fantastic project Gerardo Richarte and I were doing with an 18-bell tower located in Argentina. Back then, I showed some details of the architecture, code, and how I mocked-up “El Carrillon” with a homemade LED piano so I could test it at home. In this post, you will … More El Carrillon: playing MIDI songs on an 18-bell tower with a Raspberry Pi and Smalltalk

It’s 2019: stop reading text and start debugging!

September 17, 2019

If you are a programmer, I am sure you have found yourself many many times “debugging” a system by writing strings to the console / stdout / file. Those messages were usually something like “passed here!”, “false branch”, “now about to enter loop” and maybe even some “fuc..” or “WTF” too. If you were “lucky” … More It’s 2019: stop reading text and start debugging!

Sensor, process and transparently persist your IoT data with an end-to-end object-oriented system

July 9, 2019

Let’s suppose a typical IoT / Edge Computing developer/deployment stack: One (maybe low-level) language with its own syntax and IDE to read/write data from sensors or anything GPIO-related. Another (likely high-level) language / IDE that applies business logic at increasing complexity into the collected data. A database. It’s likely that language 1) and 2) are … More Sensor, process and transparently persist your IoT data with an end-to-end object-oriented system

VA Smalltalk: Remote controlling Raspberry Pis from Across the World!

June 11, 2019

You probably know that with my friends Gera and Javier we are working on a Bell tower (called Carrillon) automation using Raspberry Pi, Python and VASmalltalk. Last week, Gera was in his way to Buenos Aires airport to take a plane to Las Vegas. Via chat, he told me he forgot his Pi: he wanted … More VA Smalltalk: Remote controlling Raspberry Pis from Across the World!

Beginners guide to GPIO in VASmalltalk

June 7, 2019

As I commented in an earlier post, one of the great features VASmalltalk has in the context of IoT, is a wrapper of the C library pigpio which allows us to manage GPIOs as well as their associated protocols like 1-Wire, I2C, etc. In this post we will see the basic setup for getting this … More Beginners guide to GPIO in VASmalltalk

Getting started with VASmalltalk, Raspberry Pi and other devices

June 5, 2019

In the previous post, I described why I personally believe that Smalltalk is a good fit for IoT. When we talk about IoT, there are millions of topics we can touch: single board computers, sensors, security, protocols, edge computing, GPIOs, AI, and so on…   But one device in particular that changed the world is the … More Getting started with VASmalltalk, Raspberry Pi and other devices

Why is Smalltalk a good fit for IoT and edge computing?

May 20, 2019

I was gonna start a series of posts about Smalltalk, IoT, Edge Computing, Raspberry Pi, etc. But before that, I would like to answer a question that I am asked each time I present something related with these topics. Why is Smalltalk a good fit for IoT and edge computing? Does it have unique features … More Why is Smalltalk a good fit for IoT and edge computing?