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custom firmware for cheap fitness trackers
if we can connect this to a lorawan node 
… or
’ what’s that on your wrist ’
’ that’s a paxcounter ’ 
Store and Graph EC/pH/ORP Data with the TICK Stack and NoCAN
RAK has prepared an online compiler for users who want to build their own IoT products based on RAK IoT modules, for example, RAK811, RAK4200, RAK4600, RAK8212-M, RAK5010, etc.
If, for example, you want to connect an I2C sensor to RAK811 module to build an exciting IoT product which can gather sensor’s data and send them out through LoRa frequently, then you can use RAK IoT SDK named RUI to build , you just need to learn how to use RUI API.
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