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From London Hackspace Wiki
→Measurement System with BLE Sensor Nodes and Mobile Hub (Freelance)
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*Several wireless measurement nodes periodically transfer data to a central hub via low-energy wireless technology (BLE). <br /> Average power consumption <1mW, powered by PV module with rechargeable battery or supercapacitor. <br /> Measurements: two or more ADCs, I2C for sensors | *Several wireless measurement nodes periodically transfer data to a central hub via low-energy wireless technology (BLE). <br /> Average power consumption <1mW, powered by PV module with rechargeable battery or supercapacitor. <br /> Measurements: two or more ADCs, I2C for sensors | ||
*The hub (smartphone or tablet) displays the information from all nodes and uploads it via mobile network (GSM) to a server accessible by us. | *The hub (smartphone or tablet) displays the information from all nodes and uploads it via mobile network (GSM) to a server accessible by us. | ||
It is likely that we will require several of the above systems. | |||
For more details see: https://www.dropbox.com/s/ipfw66iv6vqghv5/1503_ble-gsm_logger_c2.pdf | For more details see: https://www.dropbox.com/s/ipfw66iv6vqghv5/1503_ble-gsm_logger_c2.pdf | ||
