bbc micro bit radio string broadcast

Question

I have some really simple code, which I want to build up to detect button presses and then send out the button status using the radio function. But I cannot get the code to work, I thought setting the string with a fix text and then broadcast using the radio function would just work, but seem to be getting an error. I don't want to do via if states, as I will add more into the string with different sensor values and button presses etc.

from microbit import *
import radio

radio.config(group=0)
radio.on()

while True:

     button_status_a = "Button A pressed"

     radio.send(button_status_a)
     sleep(1000)

4

What is the error message? – OlivierM Jun 09 '17 at 07:44

score 3 · Accepted Answer · answered Jun 10 '17 at 08:46

You don't say how you are detecting the transmission. There is a working example of sending and receiving simple messages using button presses at this question:

BBC Bit Micro - Radio string transfer random carriage returns

The example uses if statements which you say you want to avoid. These are used to detect the button press.

score 1 · Answer 2 · answered Oct 16 '17 at 22:46

Your code as written will work, transmitting that fixed text message every second, on group 0, with no error. Make sure that you write a receiving program that is also on radio group 0. Here's an example of a program that receives and shows messages:

from microbit import *
import radio

radio.config(group=0)
radio.on()

while True:

    incoming = radio.receive()
    if incoming:
        display.show(incoming, delay=200)

bbc micro bit radio string broadcast

2 Answers2