The Raspberry Pi 3 is the third generation Raspberry Pi, it has an identical form factor to the previous Pi 2 and has complete compatibility with its predecessors.
Compraring with the Raspberry 2 it has the following features:
|Features||Raspberry Pi 3||Raspberry Pi 2|
|CPU||1.2GHz 64-bit quad-core ARMv8||900MHz quad-core ARM Cortex-A7|
|GPU||400MHz VideoCore IV||250MHz VideoCore IV|
|RAM||1GB SDRAM||1GB SDRAM|
|Wireless||802.11n / Bluetooth 4.1 / Bluetooth Low Energy||None|
|Video Output||HDMI / Composite||HDMI / Composite|
|Audio Output||HDMI / Headphones||HDMI / Headphones|
|GPIO||40 pins||40 pins|
The idea behind the Raspberry Pi to Arduino shields connection bridge is to allow to use any of the shields, boards and modules designed for Arduino in Raspberry Pi.
It includes also the possibility of connecting digital and analog sensors, using the same pinout of Arduino but with the power and capabilities of Raspberry.
Libelium's LoRa module works in both 868 and 900 MHz ISM bands, which makes it suitable for virtually any country. Those frequency bands are lower than the popular 2.4 GHz band, so path loss attenuation is better in LoRa. In addition, 868 and 900 MHz are bands with much fewer interference than the highly populated 2.4 GHz band.
Besides, these low frequencies provide great penetration in possible materials (brick walls, trees, concrete), so these bands get less loss in the presence of obstacles than higher bands.
The Arduino XBee shield allows your Arduino board to communicate wirelessly using Zigbee. It was developed in collaboration with Arduino. This documentation describes the use of the shield with the XBee module.
It is also compatible with Raspberry Pi using the Raspberry Pi to Arduino shields connection bridge.
If you are interested in Internet of Things (IoT) or M2M projects check our open source sensor platform Waspmote which counts with more than 100 sensors available to use 'off the shelf', a complete API with hundreds of ready to use codes and a low consumption mode of just 0.7µA to ensure years of battery life.
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