We want to make a rollcall device for a company, but we have some serious problems, here are most importants:
What is the best fingerprint module for industrial projects (like this)? How we can connect fingerprint modules to each other that the fingerprints can be accessible in all devices? Is there any way to store fingerprints on external storage instead of module's memory?
Description for question 2: for example, an employee has stored his/her fingerprints on device A but he/she be able to register his/her rollcall on device B, C or etc. In other words, all devices be synced to each other.