# love meter blocks activity Create a love meter with the @boardname@ ## ~avatar avatar Welcome! This activity will help you create a love meter with the @boardname@. Let's get started! ## ~ Begin by registering an event with `on pin pressed` *P0* to know when someone is holding pin *P0* and pin *Gnd*. ```blocks input.onPinPressed(TouchPin.P0, () => { }) ``` We are going to create a meter that displays a random number from *0* to *10*. We use *10* as `random number up to` returns a number between *0* and *n*. ```blocks input.onPinPressed(TouchPin.P0, () => { let x = Math.randomRange(0, 10) }) ``` Finally, let's show that number on the @boardname@. You are registering an event handler that will execute on the @boardname@ whenever the user holds the GND pin with one hand, and presses pin 0 with the other hand, thus completing a circuit ```blocks input.onPinPressed(TouchPin.P0, () => { let x = Math.randomRange(0, 10) basic.showNumber(x) }) ``` ## ~avatar avatar Excellent, you're ready to continue with the [challenges](/lessons/love-meter/challenges) ## ~