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FabioParticipant
there are 8-port 10/100 ethernet unmanaged switches switches available from D-Link and NETGEAR and CISCo….but not sure if they support PTP
FabioParticipantmore tags can be added by increasing the size of the array like for addding 4 more tags use char card_mem[10][12]; each tag has a 12-byte long serial number
FabioParticipantthere are many ways to run a program on boot up on Raspberry Pi…like editing rc.local file..open rc.local by the following command – sudo nano /etc/rc.local and add the following lines in the file for running a python program on bootup – sudo python path_of_file/name_of_file.py &
exit 0
FabioParticipantthere are some android images available online that can be loaded on SD card and run on Raspberry Pi….these custom android setups then allow installing playstore and android apps….however, for a commercial purpose, how much these images are safe to use is not known
FabioParticipantyou can use variable frequency drive (VFD device) with any controller to control speed and direction of single-phase or three-phase AC motor….duration and direction of rotation can then be programmed on controller
FabioParticipantbetter make your project based on PC…fingerprint module can be interfaced with the PC via a controller or directly to UART port…,u can use C# and a database system like Mysql for your project
FabioParticipantfingerprint module use serial communication for interacting with controller or PC…check out commands from its datasheet to communicate with the module over UART
FabioParticipantinterfacing ST9720 GLCD with Arduino is standard….There is arduino library available for that. animation can be created on that by flashing multiple images back to back
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