Turn-key PCB assembly services in prototype quantities or low-volume to mid-volume production runs

Wireless sensor using BeagleBone Blak and MSP430

chirag have built a wireless sensor prototype by using Beaglebone Black and MSP430. BeagleBone nad MSP430 sensor board is paired with Xbee RF modules. Sensor module is equipped with LM35 temperature sensor and LDR. Module sends sensor data every second which is then reflected in webpage. Beagle bone runs LIGHTTPD webserver where page is hosted. Prototype proved to be working right, there are plans on second version of module with more sensors and probably fancier web interface. Continue reading

Electronic Floor

Electronic Floor

The team for this project were asked to build “something new” for the Children’s Creativity Museum in San Francisco, so in several months they managed to build a digital/physical environment for kids called “Sense It”. A part of this project involved designing a pressure sensitive electronic floor which has been named as electric floor. It’s of 168 square foot with a pressure sensor placed at every 1 square foot The aim of the ActiveFloor project was to create a new type of digital input device that could sense and track multiple children running or jumping in the exhibit, and hence allowing games running on the accompanying LED wall to respond appropriately. There are a total of twenty-one 2′x4′ tiles, each one including 8 pressure-sensitive resistors and an ATtiny84 based platform. All the microcontrollers digitize their 8 sensor signals and send their conversion results to a beaglebone. The main reason for using the beagle board was that they wanted to send the floor data over Ethernet as UDP so that it could act as a completely decoupled system from the rest… Continue reading

Comparison of three common prototyping platforms

comparison of arduino, raspberry pi and beaglebone

Well, if you ask what is common between Arduino, BeagleBone and Raspberry Pi, I’d say they are pretty popular in hobby market. Roger Meike has made an interesting comparison between those development platforms some time ago. We could argue that there could be more boards in the comparison list, but these are already interesting to look through. The fact is that all three platforms are pretty mush same size (about 2”x3”). Each of them has their own benefits and shortcomings. No argue that Raspberry Pi and BeagleBone leave Arduino far behind in terms of performance, memory and connectivity.  Beagle bone is a bit pricy but has an analog input what we miss in Raspberry Pi. I would say this is a bit unfair comparison, but pretty interesting read. Who knows – maybe someone will find this a useful as a selection guide of next platform. Continue reading