TIDA-00666 enables Bluetooth Low Energy communication powered from a 2-wire 4- to 20-mA loop. For industrial process control instruments, analog 4- to 20-mA current loops are commonly used for analog signaling, with 4 mA representing the lowest end of the range and 20 mA the highest. This reference design measures humidity and temperature and is broadcasting the measured values with Bluetooth Low Energy. TIDA-00666 is loop powered and the current value on the loop is changed according to the humidity value (0% is 4 mA and 100% is 20 mA).
Features
- 4- to 20-mA loop powered Bluetooth low energy communication
- 4- to 20-mA current-loop output signal
- 8-V to 33-V input voltage range
- 16-bit loop current resolution
- On-board humidity and temperature sensor