diff --git a/Eagle_lib/ATDevices.lbr b/Eagle_lib/ATDevices.lbr
index 4c094e9..0f1629a 100644
--- a/Eagle_lib/ATDevices.lbr
+++ b/Eagle_lib/ATDevices.lbr
@@ -6,7 +6,7 @@
-
+
@@ -22,38 +22,40 @@
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
-
-
-
-
-
-
+
+
+
+
+
+
+
+
@@ -66,83 +68,111 @@
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Generated from <b>Feather_j-link.sch</b><p>
@@ -619,6 +649,371 @@ by exp-lbrs.ulp
>NAME
>VALUE
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+>NAME
+>VALUE
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+>NAME
+>VALUE
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+>NAME
+>VALUE
+
+
+
+
+
+
+
+
+QT Py for through-hole or Castelated mounting.
+>NAME
+>VALUE
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+QT Py for Castelated mounting only.
+>NAME
+>VALUE
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+QT Py for through-hole or Castelated mounting with a board cutout for under-board mounted SPI Flash IC.
+>NAME
+>VALUE
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+QT Py for Castelated mounting only. Solder holes allow access to the Single Wire Debug (SWD) pins SWDIO, SWCLK, and Reset.
+>NAME
+>VALUE
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+QT Py for through-hole or Castelated mounting. Solder holes allow access to the Single Wire Debug (SWD) pins SWDIO, SWCLK, and Reset.
+>NAME
+>VALUE
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
@@ -815,6 +1210,180 @@ by exp-lbrs.ulp
>NAME
>VALUE
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+>VALUE
+
+
+>NAME
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+>VALUE
+
+>NAME
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+>VALUE
+
+>NAME
+
+
+Adafruit QT Py SAMD21 product #4600.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+>NAME
+>VALUE
+
+
+Adafruit QT Py SAMD21 product #4600 with access to Single Wire Debug (SWD) pins SWDIO, SWCLK, and Reset.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+>NAME
+>VALUE
+
+
+
+
@@ -1183,6 +1752,274 @@ For use with ARM7, and ARM9. Supported by some Cortex M3 boards with SWJ-DP int
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Adafruit QT Py SAMD21 product #4600.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Adafruit QT Py SAMD21 product #4600 with access to Single Wire Debug (SWD) pins SWDIO, SWCLK, and Reset.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/README.md b/README.md
index b500c30..994e284 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,21 @@
# ATDeviceLib
A set of libraries for PCB Design using common AT devices.
+
+ ## Microcontrollers
+ Schematic elements and footprints for common microcontroller boards.
+- Adafruit ItsyBitsy
+ - 32u4-3V #3675
+ - 32u4-5V #3677
+ - M4 Express SAMD51-3V #3800
+ - and probably the RP2040 #4888 using the M4 pattern (unverified).
+- Adafruit QT Py
+ - SAMD21/M0 #4600, RP2040 #4900, ...
+ - Connect with SMD pads, through-hole or both.
+ - SWD variant adds access to SWDIO, SWCLK, & RESET.
+- Adafruit Feather
+
+## Interconnects
+
+* STEMMA Qt/Qwiic surface mount connector
+* Feather headers
+* Segger J-Link ARM SWD Serial Wire Debug IDC header