Overview#
This application implements the central role. It:
Scans for the health_care_iot_peripheral device or the health_care_iot_hub device.
Connects to it
Pairs with it
Enables temperature indications
Prints the reported temperature each time an indication is received
Running the demo#
The central app will now autonomously scan.
The central app will only connect to nearby devices with a RSSI value > PROXIMITY_RSSI_THRESHOLD
Once a connection is set up with a nearby device, pairing procedure is automatically initiated
The output of the central app looks like:
Using bdAddr from NMPA bd_addr = 44:d4:65:09:e1:86 Supply mode set to: DC/DC HV supplied (buck) Start scanning for peripheral Scanning on New device: b4:10:7a:32:12:6e New device: b4:10:7a:32:12:6e New device: 34:82:98:28:ad:5d New device: 34:82:98:28:ad:5d New device: e8:42:36:12:35:a8 New device: ba:9b:31:df:c3:1 New device: 24:9a:3e:c5:d4:26 New device: b7:d2:18:5a:76:15 New device: 71:bb:bd:cb:73:7d New device: 76:3c:8c:fc:a9:3d New device: 95:75:1f:a:3a:3 New device: cf:4c:a1:40:f4:57 Service: 0x1809 NAME: ‘HCIOT_PERIPH_E6C2’ rssi: -36, rssi threshold: -42 Device found! New device: 33:72:c4:1a:e9:59 New device: 33:72:c4:1a:e9:59 Scanning off Connecting… Connected to peer device MTU changed 5 services discovered Health thermometer service found 4 health thermometer characteristics discovered Health thermometer temperature characteristic found 1 descriptors found Temperature client characteristic configuration descriptor found Privilege error, pairing with device id 0… Link is encrypted. Retrying temperature indication setup Successfully paired Temperature indication received @0s: 22 Temperature indication received @1s: 22 Temperature indication received @2s: 22
Supported boards:#
FRDM-MCXW23
MCXW23-EVK
Supported Boards#
MCXW23-EVK
Hardware requirements
Type-C USB cable
MCXW23-EVK Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the EVK board J33.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
FRDM-MCXW23
Hardware requirements
Type-C USB cable
FRDM-MCXW23 Board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the FRDM board J10.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.