I bought a Ninja Block about three years ago, which is essentially a Arduino + Node.js server thing that runs on the device to send the data from your devices (in my case, just two 433Mhz ...

Analog Signal,Analog-to-digital Converter,Data Acquisition Module,Interoperability,Accelerometer,Actuator,Analog Output,Analog Sensors,Block Diagram,Common-mode Rejection Ratio,Communication ...