Feb
04
RFduino is a miniature (23mm x 28mm) version of an Arduino that includes a Bluetooth LE radio. The devices are incredibly small and provides a subset of the io pins you get on an regular Arduino. The basic RFduino board costs just $23 which can make it cheaper to add into a...
Read More
Aug
09
The security guys at work love to find unlocked computers and ‘Hoff’ them, basically leave a browser open with a picture of David Hasselhoff. I decided to fight back and created the Spy Screen Saver. There are two ways to create a screensaver on MacOSX. One is using...
Read More
Jul
30
This basic example will show you how to get submit data to a JotForm form from an iOS app. JotForm makes it extremely quick easy to setup a form, and it provides all the backend support you need to manage that data. If you have a need to submit some data from an iOS app back to...
Read More
Jul
23
In the previous two posts (Connecting to Red Bear Labs Shield with Core Bluetooth & Getting going with iOS and Arduino using Bluetooth LE) I sent data to the Bluetooth LE shield on an Arduino, turning lights on and off. In this post I will look at receiving information from...
Read More
Jul
16
In the last post I had an iOS device connected to a Red Bear Labs Bluetooth LE Arduino shield. In that process I used the BLE framework from Red Bear Labs, which got everything going but a fair bit of device control code to end up in the UIViewController. In this example I will...
Read More
Jul
09
Apple has included the ability to communicate via Bluetooth Low Energy (BLE) in recent iOS devices, including iPad 3 & 4, iPhone 4S & 5 and the 5th Gen iPod Touch. There is an increasing array of devices with which you can communicate (such as the TI Sensory Tag), but...
Read More
Nov
22
For whatever reason Ubuntu doesn’t include a valid certificate chain for sites using RapidSSL certificates. If your server has read data from a site that uses RapidSSL then you have good chance that you will receive errors stating that the certificate is invalid. To solve...
Read More
May
10
I have been running on and off for a fair while and I was hoping to increase the distances that I was running. At the time I was running 6km two or three times and week and 12km once a week. My aim was to increase the distance I was running to a consistent 12km at least twice...
Read More
Mar
14
Racing the week before was spoilt by breaking the outhaul. This week I replaced most of the control lines to avoid a repeat of the incident. Of all of the lines which has made the biggest difference was replacing the elastic that holds the centerboard into the boat. This made...
Read More
Mar
01
The wind around Albert Park Lake was blowing 10-15 knots from the South-South West. With the tents and grandstands being built at the southern end of the lake for the Grand Prix the wind was light and very fluky down the narrows and rowing basin. The race went well with the winds...
Read More