7 ms·
Yeah, this is a known issue with the light flickering on the cover page. Send me an email and I can get you a replacement.
by hacky_engineer 3y ago
Yeah, this is a known issue with the light flickering on the cover page. Send me an email and I can get you a replacement.
- butler14 3y agoJust to update this thread and correct myself. The book is absolutely fine. The problem was we were using it at bedtime with dimmed bedroom lighting. When we turn the bedroom lights back on, the book works fine again!
- PennRobotics 3y agoIs it that the reflection of the already-on LED (or maybe external light at the right angle) is hitting the sensor used for NOT and then creating a feedback loop to keep the light on when the switch isn't pressed? This happened a few times, and either changing the ambient light or holding the book tightly shut will resolve the issue on my copy. edit: because the author is here, thanks for the book: an interesting idea and well-executed. Daughter doesn't mind the front page blue LED. I am more amused than annoyed: even a two-transistor circuit needs debugging sometimes.