User's Manual
Material
PET, heat-resistance, water-proof
Dimension
87mm*55*mm5.5mm
Weight
20g
Battery
2 pcs 3.3V built-in button lithium
Use life
3 years
5 Tag memory
Address
Storage content
Addr0~3
store the tag’s ID
Addr4~7
store the working parameters of tag
Addr4
store the interval time of tag automatically detect (automatically sending signal), 0x10,0x11,
0x12,0x13,0x14 are separately related to 0.25s,0.5s,1s,2s,4s(sending time interval);the
default is 1s
Addr5
the sending power of tag, 0x10 , 0x11 , 0x12 , 0x13 are separately related to
-18dBm,-12dBm,-6dBm,0dBm; the default is 0dBm.
Addr6
setting the tag’s sending mode (passive or active, 0xAA is active, others values are for locating
tag)
Addr7
reserved
Addr8~15
reserved
Addr16~255
user data
6. Usage of MR3820A tags
In real application, the system need MR3001A reader and MR3820A tags, and also a switch and PC is needed to
exchange the data. See following picture, reader wake up the sleepy tags, and then tag will automatically send its
ID and status information to reader. One tag will mark one person or goods. It can tell us the position of person or
goods by the reading procedure. If the tag is stayed within the reader’s reading range, it will be identified by the
reader.