<![CDATA[how to readblock from rfid]]>I have an m5dial - build in RFID reader
i have 2 midfare Tags -
RFIDUnit.is_new_card_present
and read_card_uid works. (2 Tags from 10)

But how can i read a block in a bytearray ?

i need a working example

and only Midfare TAgs working ? or also NTAG Tag (has no uid)
any max Tagsize (Mifare Classic 1K)?

my goal ist reading NDEF text Record.

]]>https://community.m5stack.com/topic/7340/how-to-readblock-from-rfidRSS for NodeSun, 08 Mar 2026 12:57:00 GMTFri, 28 Feb 2025 07:28:41 GMT60<![CDATA[Reply to how to readblock from rfid on Fri, 07 Mar 2025 07:35:45 GMT]]>Use a compatible RFID reader, authenticate if necessary, and send read commands via software or microcontroller in order to read a block from an RFID tag. Make sure that proper protocols are followed (LF, HF, UHF) and that data is retrieved securely. Integration of identification and access control systems enhances their efficiency.

]]>https://community.m5stack.com/post/28422https://community.m5stack.com/post/28422Fri, 07 Mar 2025 07:35:45 GMT<![CDATA[Reply to how to readblock from rfid on Fri, 28 Feb 2025 15:15:05 GMT]]>Hello @taunushexe

please find an M5Dial RFID example reading UID and data in the UIFlow2 Project Zone: M5Dial_RFID_ReadUID_ReadData_UIFlow2.2.2

Thanks
Felix

]]>https://community.m5stack.com/post/28362https://community.m5stack.com/post/28362Fri, 28 Feb 2025 15:15:05 GMT<![CDATA[Reply to how to readblock from rfid on Fri, 28 Feb 2025 12:49:47 GMT]]>@robski said in how to readblock from rfid:

have you checked m5Dial Project Zone examples for rfid part?

Sure - only versions found with uid

old Issue
https://community.m5stack.com/topic/2535/rfid-unit-reading-and-writing-do-not-work-in-uiflow
but readBlockStr whith key option not exist

]]>https://community.m5stack.com/post/28359https://community.m5stack.com/post/28359Fri, 28 Feb 2025 12:49:47 GMT<![CDATA[Reply to how to readblock from rfid on Fri, 28 Feb 2025 12:09:29 GMT]]>have you checked m5Dial Project Zone examples for rfid part?

]]>https://community.m5stack.com/post/28358https://community.m5stack.com/post/28358Fri, 28 Feb 2025 12:09:29 GMT