OSH Park
Shared projects
ESP8285DevBoard.v01c
by
PeskyProducts.
4
layer board of
0.71x1.01
inches
(17.96x25.55
mm).
Shared on
September 12th, 2016 22:26.
Exposed pins 9 and 10 for a total of 13 GPIOs and added MAX11607 for 4 channels of 10-bit ADC.
HydraESP32 HydraBus v1.0 Shield for ESP3212 Rev1.0 (Obsolete Do Not Use see other design based on ESP-WROOM-32)
by
hydrabus.
2
layer board of
2.37x1.47
inches
(60.22x37.21
mm).
Shared on
September 12th, 2016 20:44.
HydraESP32 HydraBus v1.0 Shield / Breakout board for ESP3212.
This board is obsolete see replacement using ESP-WROOM-32
TM1640 LED Board
by
Hoddem.
2
layer board of
6.38x1.13
inches
(162.00x28.70
mm).
Shared on
September 12th, 2016 20:18.
16 Digit display
Raspberry Pi (& compatible) to Mesa 7i90 SPI Adapter
by
jepler.
2
layer board of
2.00x0.53
inches
(50.80x13.36
mm).
Shared on
September 12th, 2016 19:33.
Converts SPI from Raspberry Pi-syle 40-pin connector to Mesa 7i90 26-pin connector.
You can use three 88-ohm 0805 surface mount resistors for series termination, or put big solder blobs over the pairs of resistor pads.
You have your choice of soldering male pin headers to the top, or (less common) female sockets to the bottom. Shrouded male headers, together with ribbon cables, are recommended. (sadly, the footprints do not show the correct notch position for polarized shrouded connectors)
Not a level converter, your Pi board must have Mesa-compatible voltages. (in general, the Mesa 7i90 is compatible with 3.3v and 5v on its SPI pins)
I have personally tested this with Pi3 and ODroid XU4.
oddspi v7
by
jepler.
2
layer board of
1.89x3.66
inches
(48.01x93.01
mm).
Shared on
September 12th, 2016 19:33.
odroid u3 spi 1.8v->3.3v level shifter