Sunday, 26 December 2021

Hug Avoider 4 - micropython, Eggbot and speech

The last of the posts on the Hug avoider and the 4Tronix's Eggbit



4Tronix's Eggbit (in fact I bought three of them https://shop.4tronix.co.uk/collections/bbc-micro-bit/products/eggbit-three-pack-special  :-) recently) is a cute add-on for the microbit. In three previous posts I looked at eggbit using microcode to  produce a hug avoider - warns when people at too close.



In this post using the buttons and adding (via Microbit V2 with its speaker) simple speech


1. Buttons

Pins for the buttons
  • pin8 - Green button
  • pin12 - Red button
  • pin14 - Yellow button
  • pin`6 - Blue button

    if pin12.read_digital()==1:
        #Red Button
        blank_it()
    if pin8.read_digital()==1:
        #Green button
        startingMessage()
    if pin14.read_digital()==1:
        #Yellow button
        rainbow()
    if pin16.read_digital()==1:
        #Blue botton
        display.show(Image.ASLEEP)

2. Speech


    mess1 = [
    "This is the hug avoide",
    "please keep back",
]
# Take from https://microbit-micropython.readthedocs.io/en/latest/tutorials/speech.html
    for line in mess1:
        speech.say(line, speed=120, pitch=100, throat=100, mouth=200)
        sleep(500


The speech is difficult to hear but is fun and there are possibly ways to improve this starting with the information on  https://microbit-micropython.readthedocs.io/en/latest/tutorials/speech.html



3. Overall

from microbit import *
from machine import time_pulse_us
import neopixel, speech

sonar =pin15
sonar.write_digital(0)
fireled=neopixel.NeoPixel(pin13,9)

def rainbow():
    fireled[0] = (255, 0, 40)
    fireled[1]=  (255,165,0)
    #block=yellow
    fireled[2] = (255,255,0)
    #block=green
    fireled[3] = (0,255,0)
    #block=blue
    fireled [4] = (0,0,255)
    # block=indigo
    fireled[5] = (75,0,130)
    # block=violet
    fireled[6] = (138,43,178)
    #block=purple
    fireled[7] = (255,0,255)
    fireled.show()

def blank_it():
    for j in range(8):
        fireled[j] = (63, 0, 0)
    fireled.show()

def howfar():
    sonar.write_digital(1)
    sonar.write_digital(0)

    timeus=time_pulse_us(sonar,1)
    echo=timeus/1000000
    dist=(echo/2)*34300
    sleep(100)
    return dist

def startingMessage():
    mess1 = [
    "This is the hug avoide",
    "please keep back",
]
# Take from https://microbit-micropython.readthedocs.io/en/latest/tutorials/speech.html
    for line in mess1:
        speech.say(line, speed=120, pitch=100, throat=100, mouth=200)
        sleep(500)

def buttonplay():
    if pin12.read_digital()==1:
        #Red Button
        blank_it()
    if pin8.read_digital()==1:
        #Green button
        startingMessage()
    if pin14.read_digital()==1:
        #Yellow button
        rainbow()
    if pin16.read_digital()==1:
        #Blue botton
        display.show(Image.ASLEEP)
  
while True:
    buttonplay()
    dist=howfar()
    if dist>30:
        pin2.write_digital(1)
        pin0.write_digital(0)
        display.show(Image.HAPPY)
    else:
        pin2.write_digital(1)
        pin0.write_digital(1)
        blank_it()
        speech.say("back away please", speed=120, pitch=100, throat=100, mouth=200)
        display.show(Image.ANGRY)




All opinions in this blog are the Author's and should not in any way be seen as reflecting the views of any organisation the Author has any association with. Twitter @scottturneruon

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