Full size SD card to Micro SD

2 layer board of 1.80x1.24 inches (45.77x31.50 mm).
Shared on November 22nd, 2016 11:50.

Why bother using huge standard size SD cards with a small Micro SD socket? Mostly for testing the SD library compatibility ancient SD cards (which are mostly the large size) on Teensy 3.5 & 3.6.

Who knows, maybe someone else will find this useful for some off-beat application?

The SD socket is Digikey part number HR845CT-ND.

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Ethernet PHY for Teensy 3.5 & 3.6

4 layer board of 2.40x0.70 inches (60.99x17.83 mm).
Shared on August 20th, 2016 17:56.

Ethernet Shield for Teensy 3.5 and 3.6.

See this Kickstarter update for more info.

Please understand this shield has very limited software support at this time. However, Manitou’s early benchmarks show excellent performance we can someday hope to achieve as the software matures.

Bill of Materials

Qty  Part                               Digikey
---  ----                               -------
1    LAN8720A                           LAN8720A-CP-CT-ND
1    CAT811T                            CAT811TTBI-GT3OSCT-ND
1    Crystal, 25 MHz                    535-13419-1-ND
1    Transformer, Pulse H1102FNL        553-2204-1-ND
1    Connector, RJ45                    A102068CT-ND
1    Capacitor, 1nF, 2000V              709-1036-1-ND
2    Capacitor, 33pF                    490-5936-1-ND
1    Capacitor, 470pF                   490-1297-1-ND
3    Capacitor, 10nF                    445-1260-1-ND
1    Capacitor, 22nF                    490-8022-1-ND
3    Capacitor, 1uF                     399-5090-1-ND
1    Resistor, 33, 1%                   311-33.0LRCT-ND
4    Resistor, 49.9, 1%                 RMCF0402FT49R9CT-ND
4    Resistor, 75, 1%                   RHM75.0HCT-ND
2    Resistor, 330, 1%                  311-330LRCT-ND
1    Resistor, 1.5K, 1%                 311-1.50KLRCT-ND
2    Resistor, 12.1K, 1%                P12.1KLCT-ND
1    Inductor, Ferrite bead             553-2387-1-ND
2    LED, Green                         475-1410-1-ND

Parts Placement Diagram

Warning: you must solder the LAN8720A’s center pad. This chip will not work if only the outside 24 pins are connected.

A future version of this board may include Power Over Ethernet support…..

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SD Socket Tester

2 layer board of 1.06x0.44 inches (27.03x11.05 mm).
Shared on August 19th, 2016 14:59.

This little board fit into a SD socket. The other end is meant to have a connector, Digikey part number 609-1788-1-ND.

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serialflash_sd

2 layer board of 1.40x0.70 inches (35.61x17.86 mm).
Shared on January 21st, 2016 20:26.

For testing the SerialFlash library

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serialflash3

2 layer board of 1.40x0.70 inches (35.61x17.86 mm).
Shared on January 21st, 2016 20:21.

SerialFlash library test board.

https://forum.pjrc.com/threads/31491-Will-Paul-s-SPIFlash-library-work-with-these?p=92416&viewfull=1#post92416

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