# prank wifi challenges create a fake wifi app to trick your friends. #docs ## Before we get started Complete the following guided tutorial: * [tutorial](/microbit/lessons/prank-wifi/tutorial) At the end of the tutorial, click `keep editing`. 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.plotImage(` . . . . . . . . . . . . # . . . # # . . # # # . . `) } else if (sum >= 1400 && sum < 1680) { basic.plotImage(` . . . . . . . . # . . . # # . . # # # . # # # # . `) } else if (sum >= 1680) { basic.plotImage(` . . . . . . . . . . . . . . . . . . . . # . . . . `) } }) ``` **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 <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.plotImage(` . . . . . . . . . . . . # . . . # # . . # # # . . `) } else if (sum1 >= 1400 && sum1 < 1680) { basic.plotImage(` . . . . . . . . # . . . # # . . # # # . # # # # . `) } else if (sum1 >= 1680) { basic.plotImage(` . . . . . . . . . . . . . . . . . . . . # . . . . `) } }) ``` **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.plotImage(` . . . . . . . . . . . . # . . . # # . . # # # . . `) } else if (sum2 >= 1400 && sum2 < 1680) { basic.plotImage(` . . . . . . . . # . . . # # . . # # # . # # # # . `) } else if (sum2 >= 1680) { basic.plotImage(` . . . . . . . . . . . . . . . . . . . . # . . . . `) } if (sum2 >= 1200 && sum2 < 1400) { basic.plotImage(` . . . . # . . . # # . . # # # . # # # # # # # # # `) // *** } }) ``` **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()`.