15. PARTICLE PHOTON
Backwards compatible with the Spark Core
Broadcom BCM43362 Wi-Fi chip
STM32F205 120Mhz ARM Cortex M3
1MB flash, 128KB RAM
802.11b/g/n
FCC/CE/IC certified
Open source hardware
16. ELECTRON
Software compatible with the
Photon
FCC/CE/IC/PTCRB certified
STM32F205 ARM Cortex M3
1MB Flash, 128K RAM
u-blox SARA G350/U260/U270
cellular modem
Open source hardware