If the light on your pen doesn’t turn on and you can still write on your Surface, the LED light may be broken. If the light on your pen doesn’t turn on and you’ve replaced the battery ...

That’s the question [Kathy] asked when she built this LED matrix light pen project. It looks simple enough – a 64-LED matrix illuminates as the pen draws shapes. But how does the circuit ...

4] What does the light on the Pen mean? The LED light on your Surface Slim Pen can tell you when to charge the battery and more. See the table below. Flashing white after you press and hold the ...

To check your Surface Pen battery, press and hold the eraser button for five seconds until an LED light turns on. A green light means the battery is charged; a red light means the battery is low ...