Connections
The electrical connections are pretty simple so I did not do a schematic (power, an SPI connection through a level converter to the display unit and [software]serial/UART to nRF24AP2 module). I can make that up if people are interested......
To connect the device parts to the hat I decided "velcro" was the way to go. Allowing removal when needed. I waterproofed each of the elements in small "ziploc" bags with electrical type and put some velcro on the back of them. I then stitched the other half of the velcro into the hat (with some very poor sewing technique).
This is what it looks like:
and here is a quick video too:
and you can see in the video the bane of the 7-segment display -- the letter 'k'
The electrical connections are pretty simple so I did not do a schematic (power, an SPI connection through a level converter to the display unit and [software]serial/UART to nRF24AP2 module). I can make that up if people are interested......
To connect the device parts to the hat I decided "velcro" was the way to go. Allowing removal when needed. I waterproofed each of the elements in small "ziploc" bags with electrical type and put some velcro on the back of them. I then stitched the other half of the velcro into the hat (with some very poor sewing technique).
This is what it looks like:
and here is a quick video too:
and you can see in the video the bane of the 7-segment display -- the letter 'k'
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