The next thing was to share knowledge, so everything that the boys learnt by trial and error over the past few weeks: they were giving us a crash course in 1hour.
First was powering up the cameras and the router. Connecting the wires, plugging into computer, powering up the system…
Accessing the router through the tp-link and the address @ 192.168.1.10x where x refers to the cameras and the NVR (our storage system for all the videos recorded). Once that was done, they taught us how to use Blue Iris and to familiarize ourselves with the interface.
Then, it was using Raspberry Pi module. Functioning as a miniaturized computer, we reconnected the keyboard, mouse and monitor to the Rpi and lo and behold:
“Eee why the wallpaper like that one”
Then, the boys introduced to us the bread board and the pins at the side of the RPi.
Using their previous code, they proceeded to explain line by line, and the numbering system of the pins on the Rpi.
and Anita proceeded to make that the desktop wallpaper instead…
The code programs light bulbs connected in the bread board to blink at certain intervals. So with the lightbulbs and resistors in place, we connected the jumper wires to the board and volia!
NOTHING HAPPENED.
We were dumbfounded.
Checking the connections, the code, the lightbulb…we found out about one other important factor: the anode of the bulb.
Basically, LEDs have a long end and a short end.
and if not properly positioned based on current input and output, the LED will not light up.
After troubleshooting and reconfiguring the set up: we nailed it.
The lights blinked in perfect synchrony.
changing the refresh rate of the code, we learnt that the fact that “your eyes have a refresh rate of 20fms” is not exactly accurate, its actually 13.5fms, you’re welcomed.