Sniffing the Planet Bike Blaze 1W Headlight

Sniffing the Planet Bike Blaze 1W Headlight

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…

Read More Read More

Making the Connection

Making the Connection

I’ve had mixed success with micro controller cable interconnects.  My first experiences at wiring was humble.  I leaned heavily on standard 3mm audio jacks due mainly to the low learning curve.   As my projects became more complex, the limitations with this became clear. Simply doing a search for Molex on Google will reveal the dilemma that the newcomer has to face.  I couldn’t make the connection.  The endless sea of pitch, ratings, conductor type, latch types, etc. just made the…

Read More Read More

Test Equipment and Uses

Test Equipment and Uses

The Saleae logic tester arrived in the mail yesterday evening. It will join the other pieces of hardware I have. I thought, why not do a give a brief description of the equipment I have. So here it is. Saleae Logic Analyzer 5.25V The trigger and capture of digital signals will be key to identifying 3 party hardware protocols. The is the first step in interfacing custom hardware to the 3 party hardware. PropScope 10Vdc / 20Vpp Parallax’s Propeller based…

Read More Read More