Let's use /mnt/usb/data.db for storing the SQLite db

python/tagserver_SQLite.py

@@ -12,7 +12,7 @@ from pycomm.ab_comm.clx import Driver as ClxDriver
 import logging
 
 # con = lite.connect("/usr/db/data.db")
-con = lite.connect('/home/pi/data.db')
+con = lite.connect('/mnt/usb/data.db')
 
 
 def readTag(addr, tag):

www/functions_SQLite.js

@@ -1,5 +1,5 @@
 // var dbFile = "/usr/db/data.db";
-var dbFile = "/home/pi/data.db";
+var dbFile = "/mnt/usb/data.db";
 // var dbFile = '/Users/patrickjmcd/data.db';
 
 exports.getAllTags = function(req, res){