As I develop circuits that connect to the USB port on my computer I have been thinking that a short circuit could damage my computer costing a lot to repair. The USB port on a host computer has limited protection.…
Preliminary LPC1347 Testing
I received the LPC1347 boards just before Christmas and have completed the board build. So far I have two issues with the design. First I needed to increase the size of capacitor C4 on the boot-loader/reset pin to allow reliable…
Pogo Pins and Lasers
When I designed the capacitive switch I didn’t include any connectors on the board so that it would be as thin as possible. As a result, there is no easy way to program the micro-controller when I first assemble one…
Packaging my Capacitive Switch
One of the features I wanted with my capacitive switch was the ability to package the device in a non-traditional package. In contrast to a regular push button the capacitive switch geometry is very configurable just by sizing the electrodes.…
ARM compiler for the LPC134x
I think that a very easy way to get started with the LPC1347 is to buy an LPCXpresso board for about $30. This comes with a development board and in circuit emulator and is supported with an Eclipse IDE that…
Conquering software complexity
I am involved in a number of robotic, volunteer and art groups and find that the computer questions I come across are very simple, yet the questions illustrate just how difficult it is to get started. Perhaps the greatest credit…