CPUStick™ and StickOS™ -- Wireless Made Just as Easy!

With the aid of an MC13201 ZigFlea™ Wireless Transceiver, a simple wireless embedded system, like a remote LED dimmer, can be brought online just as easily as a local embedded system!

It’s as easy as...

set the 2.4GHz zigflea wireless nodeid on each MCU
wire MCU #1 to its embedded circuit
1. wire MCU #1 pin an0 to the potentiometer
wire MCU #2 to its embedded circuit
1. wire MCU #2 pin dtin0 to the LED
connect a host computer to the USB interface on MCU #1
write and debug your BASIC control program, live on MCU #1 (see below)
use the 2.4GHz zigflea wireless transport to connect to MCU #2
write and debug your BASIC control program, live on MCU #2 (see below)
run the program on MCU #2
disconnect from MCU #2
run the program on MCU #1

The entire debugging session, including the writing and running of both MCU’s BASIC control programs, is shown below:

(see the examples in text format)

Note that all of this debugging session is occurring on the Hyper Terminal connected to the USB interface on MCU #1!

First we write the program on MCU #1.

Notice in line 10 that we declare a local pin variable named “potentiometer” to read the value of the potentiometer, through analog input pin an0, in millivolts.
Then, in line 20, we declare a remote pin variable to control the LED on MCU #2 (through MCU #2’s local pin variable!); the “as remote on nodeid 2” indicates that the real variable declaration is found on MCU #2.
Then we simply enter an infinite loop reading the value of the potentiometer (again, in millivolts) every 100ms, and writing it to the LED on MCU #2.

We then save the program to flash memory on MCU #1 and configure it to run automatically when the MCU powers up.

Then we remotely connect to MCU #2 and write its program.

Notice in line 10 that we declare a local pin variable named “led” to control the LED, through analog output pin dtin0, in millivolts.
Then we simply enter an infinite loop, waiting for our local pin variable to be written remotely from MCU #1 every 100ms!

We then save the program to flash memory on MCU #2 and configure it to run automatically when the MCU powers up.

Finally, we run the program on MCU #2, disconnect from MCU #2 by pressing <Ctrl-D>, and run the program on MCU #1.

At this point, adjusting the potentiometer on MCU #1 causes the LED brightness on MCU #2 to be correspondingly adjusted, after a 100ms delay!!!