The idea is to made as open software / hardware smartphone as it possible.
Project was started 10.01.2019 by Stanisław Wołoch (Nuke)

alfa 1
alfa 2
beta 1
beta 2
First

Hardware:

1. Raspberry Pi B+ (becouse I already have it and raspi 3 A+, have the same amount of ram (512))
2. camera module
3. GSM module gsm800l-tutorial - It's only 2g but it's easy to buy and cost 10x less than 3g. I didn't find 4g/LTE (witch will be cost x50 more than 2g)
4. LCD TFT 4.3'' with touch screen

Software:

1. Debian / Raspbian
2. software from modules manufacturers (see hardware)

Links:

1. zerophone.org
2. modular-phone-for-raspberry
3. https://www.raspberrypi.org/blog/piphone-home-made-raspberry-pi-smartphone/
4. https://hackaday.io/project/159811-esp32-wiphone

To do:

• smaller thickness (will remove ethernet and usb ports, probably also GPIO)
• more ram?

TODO:

• More less working device
• definitely more powerful hardware

TODO:

• More less working device
• Shell

First fully operational prototype with main components soldered on one one board.