Gertrude: Microchip TQFP-100 breakout board development

{{Prototype
|codename=Gertrude
|status=Part selection
|devthread=http://dangerousprototypes.com/forum/viewtopic.php?f=19&t=3025
}}

==Prototypes==

[[image:TQFO-100-proto.jpg|600px]]

[[image:TQFO-100-proto2.png|250px]]
[[image:TQFO-100-proto1.jpg|250px]]

==Resources==
Forum links, datasheets, app notes, etc.
*notes:
**All parts except the usb and the MCU will be placed on the bottom layer.
**the LEDs as well as the button have to be side facing to accommodate note above.

==Latest Schematic==

[[file:TQFO-100-sch43.png|600px]]

===Early Schematic===

[[file:TQFO-100-sch42.png|250px]] [[file:sch1.png|250px]]

== Latest PCB ==

[[file:TQFO-100-pcb68.png|600px]]
=== Early PCB ===

[[file:TQFO-100-pcb67.png|250px]] [[file:TQFO-100-pcb1.png|250px]]

== Bottom Placement ==

[[file:TQFO-100-pcbx22.png|600px]]

== Partlist ==
{| class="wikitable" border="1"
!Part!!Quantity!!Value!!Package
|-
|C1-C7||7||0.1uF||C603
|-
|C8||1||10uF||C805
|-
|C9,C10,C11,C12,C13||5||10uF||C603
|-
|C14||1||1uF||C805
|-
|D1||1||||SOD123
|-
|DC_EXTERNAL||1||HEADER1X2PTH||M1X2
|-
|ICSP||1||||1X05
|-
|JP1,JP2||2||||2X19
|-
|L1||1||||WE-KI_0805_B
|-
|LED1,LED2,LED3||3||P4||CHIP-LED0805
|-
|R1,R4,R5,R6||4||2K||R805
|-
|R2||1||100k||R805
|-
|R3||1||2k||R805
|-
|SW1||1||||TACT_SWITCH_SMALL
|-
|T1||1||||SOT23-EBC
|-
|USB1||1||CON-USB-MINI-BUSB1||CONN_USB_MINI-B
|-
|VR1||1||||SOT-23-5
|-
|X1||1||OSC-XTAL28M_||5X8
|-
|X2||1||OSC-32.768||CM309S
|}

== License ==
*Hardware: CC-BY-SA
*Firmware: CC-BY-SA
*Bootloader: GPL V3.0
*Software: CC-0