2019-07-11 (Th) PillarGame

Getting a digital signal into the cylinder did not work with just a 433MHz transmitter and receiver, at least not at the speeds necessary for controlling hundreds of addressable LEDs. The next option was to use a more robust wireless chip and a programmable controller. I had some inexpensive NRF24L01 in stock, but I had not used them before. Another goody from my shelves was a Fio board which boasts onboard battery charging, which would be great if the cylinder power turned out to be unreliable.
Arduino MEGA clone and OSEPP Fio

Both boards were connected according to their pinouts and documentation. The NRF24L01 boards used the SPI communication specification, which is another gap in my experience. According to the short blurbs I read, it was typically used by a controller to monitor and control peripheral devices, and the "P" in SPI suggests as much. A handy Instructable suggested that controller-to-controller communication was possible.

When everything was connected, the Arduino MEGA's serial data showed blips on the radio spectrum, but the Fio spat out nonsense even though the code was identical. Perhaps a sketchy board was not the best place to start with an unfamiliar communication spec and hardware.
Even under battery power, only garbage-data came out

The rest of the posts for this project have been arranged by date.

First time here?

Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6

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