pxt-ev3/docs/reference/brick.md

Brick

Screen

brick.showMood(moods.sleeping);
brick.showImage(images.expressionsBigSmile);
brick.showString("Hello world!", 1);
brick.showNumber(0, 1);
brick.showValue("item", 0, 1);
brick.clearScreen();
brick.printPorts();

Buttons

brick.buttonEnter.onEvent(ButtonEvent.Click, function () {

});
brick.buttonEnter.pauseUntil(ButtonEvent.Click);
brick.buttonEnter.isPressed()
brick.buttonEnter.wasPressed()
brick.setLight(BrickLight.Red);

Other

brick.batteryLevel()