Usage - ST SimpleMAC STM32W108 Series User Manual

UM0893
4.3.7

Usage

This demonstration illustrates two use cases:
●
RS232 cable replacement
This scenario illustrates an existing point-to-point communication based on a wired
RS232 connection, which is replaced by 802.15.4 2.4GHz RF link.
●
Simple remote control implementation
This scenario illustrates a button push on one board (remote control), resulting in LED
activities on the other board (actuator).
The demonstration requires two boards. Follow the instructions:
1. Load the two boards with the talk application.
2. Open a terminal on both boards so you can see the keystrokes sent from one terminal
to the other. This is an RS232 cable replacement demonstration.
3. Push any button on one board and observe the corresponding action on the other
board LEDs. This is a simple remote control implementation.
Note: Notes and limitations
You cannot use more than two nodes with a talk application in the same radio range
because RF conflicts will arise.
When pressing a button on the Talk Application Board 1, LED D1 is turned on indicating a
packet is going to be sent.
If something is wrong with the current RF communication (packet transmission failed or no
acknowledgment received from the Talk Application Board 2), pressing a button on the Talk
Application Board 1 makes the Talk Application Board 1 LEDs (D1 and D3) blink for a few
seconds.
STM32W108 SimpleMAC demonstration applications
Doc ID 16995 Rev 10 31/54