pxt-calliope/docs/lessons/prank-wifi/activity.md

prank wifi challenges

create a fake wifi app to trick your friends. #docs

Before we get started

Complete the following exercise. Your code should look like this:

basic.showString("Check Wifi", 150)
basic.forever(() => {
    let xAccel = math.abs(input.acceleration("x"))
    let yAccel = math.abs(input.acceleration("y"))
    let zAccel = math.abs(input.acceleration("z"))
    let sum = xAccel + yAccel + zAccel
    if (sum < 1400) {
        basic.showleds(`
. . . . .
. . . . .
. . # . .
. # # . .
# # # . .
`)
    } else if (sum >= 1400 && sum < 1680) {
        basic.showleds(`
. . . . .
. . . # .
. . # # .
. # # # .
# # # # .
`)
    }
    else if (sum >= 1680) {
        basic.showleds(`
. . . . .
. . . . .
. . . . .
. . . . .
# . . . .
`)
    }
})

Challenge 1

What if wanted to show the maximum connectivity of wifi instead of just 1, 3, or 4 bars?

Let's start by changing the first IF statement to if sum <1200.

Edit this line: if sum is greater than 1400 then just click on the 1400 and backspace until you can add your own number of 1200.

basic.showString("Check Wifi", 150)
basic.forever(() => {
    let xAccel1 = math.abs(input.acceleration("x"))
    let yAccel1 = math.abs(input.acceleration("y"))
    let zAccel1 = math.abs(input.acceleration("z"))
    let sum1 = xAccel1 + yAccel1 + zAccel1
    if (sum1 < 1200) {
        basic.showleds(`
. . . . .
. . . . .
. . # . .
. # # . .
# # # . .
`)
    } else if (sum1 >= 1400 && sum1 < 1680) {
        basic.showleds(`
. . . . .
. . . # .
. . # # .
. # # # .
# # # # .
`)
    }
    else if (sum1 >= 1680) {
        basic.showleds(`
. . . . .
. . . . .
. . . . .
. . . . .
# . . . .
`)
    }
})

Challenge 2

Let's add an IF at the bottom of your code that checks to see if sum >= to 1200 and if sum <1400

basic.showString("Check Wifi", 150)
basic.forever(() => {
    let xAccel2 = math.abs(input.acceleration("x"))
    let yAccel2 = math.abs(input.acceleration("y"))
    let zAccel2 = math.abs(input.acceleration("z"))
    let sum2 = xAccel2 + yAccel2 + zAccel2
    if (sum2 < 1200) {
        basic.showleds(`
. . . . .
. . . . .
. . # . .
. # # . .
# # # . .
`)
    } else if (sum2 >= 1400 && sum2 < 1680) {
        basic.showleds(`
. . . . .
. . . # .
. . # # .
. # # # .
# # # # .
`)
    }
    else if (sum2 >= 1680) {
        basic.showleds(`
. . . . .
. . . . .
. . . . .
. . . . .
# . . . .
`)
    }
    if (sum2 >= 1200 && sum2 < 1400) {
        basic.showleds(`
. . . . #
. . . # #
. . # # #
. # # # #
# # # # #
`) // ***
    }
})

Challenge 3

Now it's your turn! Be creative and change the Wifi meter images to your own wifi image you're sure will prank your friends by editing the lines that call plot image().