OSH Park
Profile for BradGrantham
Shared projects
LCD interface board
by
BradGrantham.
2
layer board of
1.64x3.86
inches
(41.66x98.04
mm).
Shared on
March 6th, 2017 05:50.
40-pin GPIO to LCD plus Adafruit SMPTE610 breakout - https://github.com/lkesteloot/alice/tree/master/alice4
STM32F415RG breakout board
by
BradGrantham.
2
layer board of
0.85x3.25
inches
(21.49x82.45
mm).
Shared on
February 18th, 2016 20:44.
64-pin DIP breakout for the STM32F415RG
Not Yet Tested
This Cortex M4 features 168MHz max clock, RTC, and SDIO. Of course it has the usual SPI, I2C, parallel LCD, USARTs.
KiCAD files on Github for this version
We’re using this ARM chip in the Alice 3.
This board is almost certainly not usable for a general 64LQFP breakout, because it connects some pins to each other and with copper pours (zone fills).
Alice 3 v2
by
BradGrantham.
2
layer board of
2.96x4.51
inches
(75.08x114.45
mm).
Shared on
February 8th, 2016 18:18.
Alice 3 is a through-hole SBC featuring Z80, Propeller, and ARM Cortex 4F (STM32F4).
- The Z80 runs CP/M 2.2
- The Propeller handles VGA, and 3 pins are brought out to a 5-pin header including GND and 3.3V
- The ARM handles SD Card, PS/2 keyboard, and serial console.
We used this board as an opportunity to learn Propeller, ARM Cortex M series, and KiCAD Schematic Capture and PCB layout.
Firmware for the ARM and Propeller and the Z80 bootloader and CP/M BIOS are checked into Github.
This edition of the board fixes some GND and 3V3 traces as well as rotating the SD carrier header 180 degrees so it would be mounted on top.
Alice3v1
by
BradGrantham.
2
layer board of
2.96x4.51
inches
(75.08x114.45
mm).
Shared on
February 4th, 2016 03:46.
Alice 3 is a through-hole SBC featuring Z80, Propeller, and ARM Cortex 4F (STM32F4).
- The Z80 runs CP/M 2.2
- The Propeller handles VGA, and 3 pins are brought out to a 5-pin header including GND and 3.3V
- The ARM handles SD Card, PS/2 keyboard, and serial console.
We used this board as an opportunity to learn Propeller, ARM Cortex M series, and KiCAD Schematic Capture and PCB layout.
Firmware for the ARM and Propeller and the Z80 bootloader and CP/M BIOS are checked into Github.
Alice 3 audio stick
by
BradGrantham.
2
layer board of
1.39x0.58
inches
(35.26x14.68
mm).
Shared on
January 29th, 2016 19:19.
Alice 3 audio stick