MarkusPL0

Hi, thx for your instant answer! I think the assumption that all 40bit tags begins with 33 is wrong! I've got 5 RFID cards with me that begins with 61...

Hi, unfortunately changing uint32_t to uint64_t did not help ; there must be something else

Hi, now it works fine! take a look at examples below. the difference is clear :) 92a6d7-> 330092a6d7 928ee4 -> 3800928ee4 5c1f3d -> 61005c1f3d thanks a lot! PS maybe it...

> @MarkusPL0 can you help me on this? I just want the modified files rdm6300.cpp and rdm6300.h > as I understood you have them already modified and working, so please...

have you tried casting it directly to String -> String(rdm6300.get_tag_id(), HEX)

I was testing it using Wemos D1 board (based on ESP8266). When you change your board to Wemos D1 (or whatever based on ESP8266) this program will compile without problems....