NFC LOGGER
The temperature sensor takes the reading on a predefined time and the controller goes to sleep after the reading, this makes the board run on CR2032 for more than year. All data is transmitted to the smart phone via NFC ISO14443B protocol.
Step 1: NFC LOGGER
This uses the TI's msp430 processor and TI's rf430 NFC interface and uses TI's TMP114 tempertaure sensor. Both IC are controlled using IIC communication and the total current consumption of the whole device is like <10uA.
Apr 13,2020
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