DIY 10" sunlight readable plotter

[BellaX]

Wow that looks amazing Chris! a few questions,

Are there any i2c breakouts ?
Are there any spare gpio's other than i2c? or plans for daughter boards etc?
Do you plan on open sourcing the project or plan on selling any of the other boards ?

I've thought about doing the same as you but incorporating something like the dAISyHAT onto it, not really put much time into it though and you seem to be flying!

Keep up the fantastic work
Cian

Hi Cian,

many thanks!

I made two daughter boards, one with NMEA and one with GPS, IMU and barometric pressure sensor.
Both of the daughter boards have a 4pin 0.1" header to connect additional I2C breakouts.

The Sensor daughter board has an additional header for 1-wire.

These are the pinouts of the 30pin FFC connectors:





Actually 9 GPIOs of the 200pin SODIMM connector are not used. But I think it makes no sense to break
them out to another header. 

The expansion header has 12 GPIOs plus one USB channel from the 7-port USB Hub.
And if you are not using the keyboard pcb this header has another 17 GPIOs.

Regarding AIS, I have no plans to add an AIS daughter board. The RTL USB Stick fits 
perfectly if the enclosure is removed:



If you or someone else want to add an AIS daughter board i will share the electrical 
and mechanical specs and schematics needed.

I have populated 10 main boards and 6 are already taken by friends. So 4 are happy
to find a new place. 

Cheers,
Chris