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Showing posts with the label power-led

WiFiRGB - A WiFi-enabled RGB high-power LED

Features Simple hardware, using pre-fabricated modules Controls an RGB LED via any recent browser, any operating system WiFi credentials can be configured via browser Software is written as an Arduino sketch Introduction Some time ago I read about the cheap and easy to use ESP8266 WiFi modules and I had to have a couple of them. So I ordered two ESP-01 modules. At the time I had no idea

Low-Cost High-Speed Photography - Part 3

Find this and other photos HERE. The Final Hardware And here is the final part of the entry, starting with the schematic that I finally used. The core is the same as before. But now there is a linear voltage regulator for the controller. Also shown here is the serial interface and most importantly, the sensor circuit. The sensor circuit consists of two parts. First, the reference

Low-Cost High-Speed Photography - Part 2

The New LED The Cree XM-L T6 looked very much like the no-name LED that I had used previously. Being impatient, I did not modify the driver circuit immediately, which meant that the current would be about 1.5 Amps and the resulting power would be about 4.5 W. This should yield at least 5 times the brightness as compared to the no-name LED. And this is the very first shot that I got with

Low-Cost High-Speed Photography - Part 1

Find this and other photos HERE. Project Features Produces white light flashes for high-speed photography and multiple exposures High flexibility / reconfigurability (menu controlled) Low cost (no flash unit needed, mostly cheap parts) Simple hardware No recharging time as for conventional flash lights Introduction Some of the ideas I have take years until I actually put them into practice