to use with spi-nand flash build & flash this Linux tree:

• OpenWRT: https://github.com/bhgv/openwrt

main build board now is Blueberry Pi 7.1.2.esp32.no-lan.gsm-a9g. because a9g gsm module is much better then sim800c. because of open source SDK and support of GPS.

but still work-in-progress. not finished.

sources of Linux kernel (4.10.15) for this board(s). preconfigured: https://github.com/bhgv/linux

precompiled Linux-4.10.15 SD-image with support of fb-graphics an resistive touch: https://github.com/bhgv/linux/releases/tag/1.0a

most simplest to assembly choise

• cheap Lichee Pi zero module as CPU and CPU-power module. also used its TFT connector
• ESP32-WROOM as wifi/bluetooth module
• A9/A9G as GSM/GPS module
• connector for cheap popular gt911 capacitive touchscreens (workable driver for gt911 is included to this Linux)
• includes Li-Ion/polimer battery charging/powering circuits

(not finished yet)

• removed lan port,
• added 50pins fpc RGB connector for popular 7" tfts (AT070TN[90, 91, 92, 93, 94]) in parallel to 40pins one,
• connector for capacitive touchscreens (i2c1),
• power converters for 50pins socket,
• 25% smaller board.
• esp32 now wired as wifi/bluetooth and as io expander-coprocessor.

(not finised yet)

• other power controller(s). 3 cheap and easy to solder chips in sot23-6,
• a try to use ESP32-S module as a WiFi/Bluetooth co-processor.

• ? 7" -- MDT7000

• 7" -- TKR7040B

• 7" -- GL070009T0-40

• 6" -- KD060G1-40nc-a5

• 6" -- TM060RDH02

• 5" -- HSD050IDW1-A20

• 5" -- MH0506D

• 5" -- KD50G21-40NT-A1

• 5" -- A26TF9C032169 * A0 -A20

• 5" -- H-H050L-12M

• 5" -- GL050001C0-40

• 5" -- ft050s800480005n-v01

• 5" -- HW800480F-0F-0L-20

• 5" -- hw800480f-0f-0l-10

• 5" -- T050SWV012T

• 5" -- T050SWV015T

• 5" -- FC050S151-01

• 5" -- KD50G23-40NB-A1

• 5" -- HLY050ML115-12A

(

• 6" -- texet tn-811bt

• 5" --

• Window N5 TOP Tablet PC/ N5PRO/ Onda 580
• TeXet T-939HD
• TeXet T-930HD
• TeXet TN-550A
• TeXet TN-511HD
• TeXet TN-521HD
• TeXet TN-610HD
• TeXet TN-611HD
• TeXet TM-650 (100%)
• Explay PN-955
• Explay PN-960
• SHTURMANN Play 500
• IQU Smile
• Lexand Si-515 Pro HD
• Lexand SG-615 PRO HD
• Ritmix
• EasyGo 500Bi (100%)
• lexand str-5350 hd (100%)
• Prestigio Geovision 5500BTFMHD (100%)
• Prestigio GeoVision 5600GPRSHD
• Explay SLK5
• JXD S5300
• TurboGames New
• EXEQ SET )

is the Blueberry Pi 7.1 board but with AXP203 power controller, not EA3036. and has DC-DC step down (5-12v) on power input.

• LVDS interface with cheap SN65LVDS84 serialiser,
• resistive touchscreen controller TSC2003 + pinheader for resistive touch,
• flash w25q128,
• more popular MicroSD card slot,
• datasheets for them

• pinheader for OV7670

Another fruit single board computer (SBC), based on the Allwinner V3s system on a chip (SOC). The Allwinner V3s comes in an easy to solder 128pin TQFP package.

The Blueberry PI features:

• 100 mbps Ethernet
• 1 USB Host Port / 1 mini USB port
• MIPI CSI interface (unfortunately no support in the linux kernel yet)
• Pinheader for an OV2640 and an OV7670
• Wifi and bluetooth
• RGB interface for connecting displays
• Audio jack
• an onboard microphone
• four buttons for play, pause, next and previous
• a Raspberry PI compatible header
• SPI Flash
• SD card slot

The Blueberry PI can boot from an SD card or SPI Flash. Since the V3s doesn't have a standard video output, I'm planning on creating a video addon board which provides VGA or HDMI. In combination with the ADV7611 it is possible to capture HDMI.

If you have any questions email me at marcel[dot]thuermer(at)smail[dot]emt[dot]h[minus]brs[dot]de