makers-n-creators

Mad, Sad, Glad

Challenge

The microbit radio can be used to send text over short distances. In this exercise we will try sending pre-defined picture messages to all microbits in the local area. The same code can be used on each microbit for sending and receiving.

Requirements

Two microbits.

Extensions

Change the message
Radio broadcasts to all microbits within reach. Create a private message between two specific microbits.

Example Solution

from microbit import *
import radio
import random

# name image pairs
emotions = [
    ['happy',       Image.HAPPY],
    ['sleepy',      Image.ASLEEP],
    ['sad',         Image.SAD],
    ['surprised',   Image.SURPRISED],
    ['confused',    Image.CONFUSED],
    ['meh',         Image.MEH],
    ['duck',        Image.DUCK]
]

emotion_count = len(emotions)
current_emotion = 0

radio.on()

while True:
    display.show(emotions[current_emotion][1])

    # select an emotion
    if button_a.was_pressed():
        current_emotion += 1
        if current_emotion >= emotion_count:
            current_emotion = 0
    # send that emotion
    elif button_b.was_pressed():
        radio.send(emotions[current_emotion][0])

    # Read any incoming messages.
    message = radio.receive()

    find_emotion = 0
    for emotion in emotions:
        if message == emotion[0]:
            current_emotion = find_emotion
            sleep(100)
        find_emotion += 1