EACCES errors during npm install using sudo When you install npm modules globally on mac or linux and get errors like env: node: No such file or directory /usr/local/lib or… errno ENOENT spawn ENOENT or… code EACCES […]
Determine if an image is more or less landscape (or portrait) than given dimensions Here’s a nifty c# extension method I wrote to determine how an image should be resized and/or cropped to fit within certain dimensions. If you divide a rectangle’s width by […]
How I currently set up a Raspberry PI to run a Node.js application Some notes for myself and maybe others. Buy Raspberry PI and SD card. Download Raspbian Jessie Lite: https://www.raspberrypi.org/downloads/ Unpack the image file, insert the SD cart, and write the image […]
Create an iOS app without a mac Here are some notes on how to create the certificates and stuff to publish an app using windows and phonegap build only. 1. Install OpenSSL: http://slproweb.com/products/Win32OpenSSL.html Make sure you have […]
Editing code on a Raspberry PI remotely from Windows Here’s a simple way to set up a workflow for editing code in your favourite editor on windows and have it deployed to a Raspberry PI (or any other linux […]
Tip for troubleshooting the Raspbery PI camera module Recently I was developing an application with the raspberry PI camera module, when the camera stopped working. The error when running raspistill was “mmal_vc_component_create: failed to create component ‘vc.ril.camera’”. I […]
Detecting a higher voltage on a Raspberry PI pin In a Raspberry PI application I made recently I wanted to detect if a 24 volts circuit was powered. As you probably know the Raspberry PI pins can only handle […]
Display a nice maintenance page for public visitors during deploy in IIS app_offline is a nice and efficient solution for taking an IIS website offline and displaying a message during deploy. However it has some drawbacks, you cannot visit the site yourself, […]
Raspberry Pi to netduino serial communication The Raspberry Pi and Netduino both got their strenghts, but what if they can talk to each other? I did a small proof of concept and got them to do […]
