We have just completed porting our (single source) firmware from a range of other ‘Arduino’ type platforms to Particle’s Photon, having received it yesterday & thought it would be useful sharing some of our experiences for other ‘newbies’. The photon is one of a breed of modern IoT devices hitting the market at relatively low cost. It features a STM32F205 120Mhz ARM Cortex M3 processor running at 120MHz with 1MB flash, 128KB RAM and the all important WiFi. We have been wanting to support the previous Spark Core ($39), but couldn’t resist this little device at the low price point. Particle are also offering a similar embedded device in larger quantities of 10+,  for $12, including FCC certification.

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