Problems with onInit in 1v79

well it runs automatically on connect

Do you have the Pico? If that's the case then this has never worked - you always have to either run it from a USB power supply (so there's no actual USB connection) or you need to run a terminal program when you're connected to your PC.

I'm working on fixing it - there is a beta version with it fixed (see the USB HID post) but there are some massive changes to USB, so I want to make sure it works fine before I release it.

Also: there is a bit of a problem with your code. You can end up calling g.flip() before (or while) the LCD is initialising, which can stop it working. Either try:

var initialised = false;
function onInit() {
  var spi = new SPI();
  spi.setup({ sck:B1, mosi:B10 });
  // Initialize the LCD
  g = require("PCD8544").connect(spi,B13,B14,B­­15, function() {
   initialised = true;
  });
}

// ...

setInterval(function() {
  if (!initialised) return;
  sensor.trigger();
}, 1000); 

Or actually call setInterval from the LCD's connect callback instead.