Another day, another couple of projects.
The Love-o-meter was an excuse to play with a temperature sensor, the idea being that the hotter you were, the more LEDs that would light up:
Although this worked, and I was able to set ranges between which I was able to manipulate the sensor to have the different LEDs light up, I’ve got a feeling that the sensor might need calibrating or something, as according to the output, my room was flicking between 90 and 100 degree celsius (each line was around quarter of a second):
I was able to make it go higher than this by breathing on it (no jokes about bad breath), but all attempts to cool it down failed.
The next project, the Colour Mixing Lamp, used three light sensors, each filtered to a specific wavelength via three different coloured “gels”…
… to control an RGB LED. I had a bit of trouble with this one at first, as I couldn’t get the LED to light up at all at first, but I soon realised that I’d not closed one of the circuits, and it burst into life.
Covering the different sensors with my finger subtly changed the colour of the LED, but not quite how I expected, i.e. covering the red sensor should have removed the red from the LED, but instead it increased it - although looking at the sensor data, I think, by pressing the gel closer to the sensor’s surface, I was actually giving it more… I dunno.
Anyway, next is Mood Cue, which involves using a servo, so I’m quite excited about that one.