Add read-keyboard-state.js

packages/usb/read-keyboard-state.js

@@ -0,0 +1,14 @@
+#!/usr/bin/env node
+const uhk = require('./uhk');
+const device = uhk.getUhkDevice();
+
+function readKeyboardState() {
+    const payload = new Buffer([uhk.usbCommands.getKeyboardState]);
+    console.log('Sending ', uhk.bufferToString(payload));
+    device.write(uhk.getTransferData(payload));
+    const receivedBuffer = device.readSync();
+    console.log('Received', uhk.bufferToString(receivedBuffer));
+    setTimeout(readKeyboardState, 500)
+}
+
+readKeyboardState();