USER MANUAL
STM 550 / EMSI
–
ENOCEAN MULTISENSOR FOR IOT APPLICATIONS
© 2020 EnOcean | www.enocean.com F-710-017, V1.0
STM 550 / EMSI User Manual | v1.3 | September 2020 | Page 49/97
9.2
Device identification NDEF
The NDEF area contains a device identification string using the NDEF (NFC Data Exchange
Format) standard that is readable by most NFC-capable reader devices (including
smartphones).
An example device identification string from the NDEF area of STM 550 could be:
6PENO+30S000011P000B030PS6221-K516+12Z01234567891234
+3C31+01000000
This NDEF string encodes the parameters shown in Table 9 below.
Identifier
Length of data (excl. identifier) Value
6P
3 characters
Standard:
“ENO”
30S
12 characters
EURID (6 byte, variable)
1P
12 characters
EnOcean Alliance Product ID
STM 550:
„
000B0000004C
“
STM 550U:
„
000B0000004D
“
STM 550J:
„
000B0000004E
“
30P
10 characters
Ordering Code
STM 550:
“
S6201-K516
”
STM 550U:
“
S6251-K516
”
STM 550J:
“
S6261-K516
”
2P
4 characters
Step Code and Revision (
“DA04”
)
12Z
14 characters
NFC UID (14 byte, globally unique)
3C
2 characters
Header Start Address (
“31” = 0x31
)
16S
8 characters
SW Version
Example: 01000000 = 01.00.00.00
Table 9
–
NDEF Parameters
9.3
User information NDEF
The NDEF area allows the user to store a string of up to 64 characters starting at page
0x20 and ending at page 0x2F. The remaining pages in this area (0x1E, 0x1F, 0x30) pro-
vide the required NDEF formatting information and cannot be changed by the user.