fix part number micro

Author: sabas1080

Hw/LoRA_USBStick.sch

@@ -207,7 +207,7 @@ F 0 "U1" H 5095 4175 45  0000 L BNN
 F 1 "ATSAMD21E" H 6385 4195 45  0000 L BNN
 F 2 "Housings_QFP:TQFP-32_7x7mm_Pitch0.8mm" H 5595 2615 20  0001 C CNN
 F 3 "" H 5565 2465 60  0001 C CNN
-F 4 "ATSAMD21E15B-AUT" H 5565 2465 60  0001 C CNN "manf#"
+F 4 "ATSAMD21E18A-U" H 5565 2465 60  0001 C CNN "manf#"
 	1    5565 2465
 	1    0    0    -1  
 $EndComp