Here are a few notes on my progress so far.
Software Notes:
- installed raspbian after booting NOOBS
- set up WiFI and keyboard/localization
- updated to latest packages
- ran raspi-config
- turned on ssh
- disabled GUI on boot
- enabled camera
- changed default pi password
- rebooted
took a picture with command:
# raspistill -o cam.jpg
(the underside of my desk)
Hardware Notes:
I am not an electrical engineer. I have a basic knowledge but my skills have gone downhill lately and I’m not as sharp as I used to be, and I basically cobble stuff together that I read online. Please double-check my work and if you have comments, please let me know so I can update and correct it.
I am not going to use the Piface HAT. In fact, I may need to multiplex some LEDs since I will be short some GPIO pins. I was thinking MCP23017 I2C I/O extender, but I haven’t done anything with I2C before, much less that chip, and at this point, I need to remind myself to keep it simple, and stop adding features and think about removing some! There is a time limit.
Driving the LEDs
I’m basing my work off of this:
https://dordnung.de/raspberrypi-ledstrip/
Important note: In this example, he is using a separate power supply for his Raspberry Pi. I will be using one power supply for both LEDs and Raspberry Pi. Therefore, I will be using a transformer:
https://www.amazon.com/gp/product/B00CXKBJI2/ref=ox_sc_act_title_1?smid=A2OCOGC9B25845&psc=1
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