I decided to see if the Planet Bike Blaze 1W Headlight had some PWM going on behind the scenes. It seemed to me that the logic analyzer would be perfect for this task.  I was actually surprised by the results.  One thing that I did decide on was using different test equipment in succession so nothing got smoked. First test was using the voltmeter.  It could handle it, since the headlight was powered by 2 AA batteries in series, aka … Continue reading Sniffing the Planet Bike Blaze 1W Headlight