The power supply for the Neon LED Flex Rope and the resistors for the other LEDs have arrived, and so we are now able to set up the LED system of our device.
The Neon LED Flex Rope has been powered, and it works. However, it is currently set by default to change to random colors and blink randomly. We will be using the AllPixel library to control when the LED rope is active and inactive from the Raspberry Pi. We will also control the color of the LED Rope and experiment with different RGB values to find the perfect shade of blue for infant development.
The LEDs themselves have been tested by connecting them to the Raspberry Pi's 5V and GND pins in series with a 330 ohm resistor, and they are functioning correctly. We have also made sure that we are able to turn them on and off via the GPIO pins of the Raspberry Pi using Python commands. Further soldering will likely be done at some point in order to permanently connect the LEDs and resistors to the Raspberry Pi.
On a side note, power supplies for the Raspberry Pis have also arrived, and so we will be able to power the Raspberry Pis directly from the outlet, allowing for more remote usage.
Blog posts by Niko True, Myles Vincent, and Hizami Anuar