diff --git a/Hardware/Gerbers/TataconUSB v5.zip b/Hardware/Gerbers/TataconUSB v5.zip
new file mode 100644
index 0000000..4b3542b
Binary files /dev/null and b/Hardware/Gerbers/TataconUSB v5.zip differ
diff --git a/Hardware/TataconUSB.PcbDoc b/Hardware/TataconUSB.PcbDoc
index 7913174..43b3f1b 100644
Binary files a/Hardware/TataconUSB.PcbDoc and b/Hardware/TataconUSB.PcbDoc differ
diff --git a/Hardware/TataconUSB.SchDoc b/Hardware/TataconUSB.SchDoc
index c5f5355..8886c84 100644
Binary files a/Hardware/TataconUSB.SchDoc and b/Hardware/TataconUSB.SchDoc differ
diff --git a/Hardware/seeed_bom.csv b/Hardware/seeed_bom.csv
index d469357..38e8d40 100644
--- a/Hardware/seeed_bom.csv
+++ b/Hardware/seeed_bom.csv
@@ -1,13 +1,12 @@
 Part/Designator,OPL SKU,Quantity
-"C1,C2",302010142,2
-C3,302010178,1
-C4,302010139,1
-D1,304090042,1
-D2,304090045,1
-"R1,R2",301010289,2
-"R3,R4",301010163,2
-"R5,R6",301010113,2
-R7,301010299,1
-S1,311020017,1
-U1,310010018,1
-Y1,306010033,1
+C1,302010178,1,USB filter cap
+C2,302010139,1,filter cap
+D1,304090042,1,red LED
+D2,304090045,1,blue LED
+"R1,R2",301010289,2,USB resistors
+"R3,R4",301010163,2,LED resistors
+"R5,R6",301010113,2,i2c pullup
+R7,301010299,1,reset pullup
+S1,311020017,1,reset switch
+U1,310010018,1,atmega
+Y1,306030005,1,resonator