Vela Labs

[...] , I mean microseconds (millions of a second). Having recently finished working on Triggertrap Ada, which is the highest-performance, most feature-packed camera trigger out there, I [...]

[...] room. I was lucky enough to get hold of one of the final production prototypes of the Triggertrap Ada sound trigger. Rich Harley, Triggertrap’s Head of Product, brought it over to Vela [...]

[...] site has a useful page showing pin mappings for the Leonardo. From this I can see AIN0, the analog comparator input pin, is mapped to Arduino digital pin 7. The 32u4 uses the ADC multiplexer for the [...]

[...] in heat-shrink. This isn’t strictly needed, and I’ve left it off the final circuit. The pin headers are just where I was connecting the probes of my scope. For the final version I blew the real [...]

[...] this as an Arduino shield. You can use a protoshield, but I just used a small PCB with some pin headers. If we want to measure lag we also need to trigger the flash so we can measure the time between [...]

[...] Testing a high speed flash means I need an extremely fast laser camera trigger. And by fast, I mean microseconds (millions of a second). Having recently finished working [...]

[...] need for near-total darkness which can prove to be the biggest problem. Having built a high-speed laser trigger, I needed a way of taking some photos. This presented me with a puzzle, as I work in an [...]

[...] The 32u4 uses the ADC multiplexer for the reference voltage, so we’ll use ADC0, which is Analog Input 5 in Arduino world. We’ll put the push button on an interrupt pin, in this case INT0 [...]