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AShar.18
Visitor II
April 2, 2023
Solved

Config for reading weakest tags with ST25RU3993 using C code base

  • April 2, 2023
  • 1 reply
  • 900 views

We are working with ST25RU3993 eval board and controlling it from linux based STUHFL C code base.

Could you please suggest best config for reading weakest tags with ST25RU3993 using C code base.

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Best answer by Nick K

Hello,

Reading "weak" tags depends on different factors. Its not possible to have one configuration setup for all possible application/HW setups. The following list gives an overview of the most important factors that may influence the read performance. 

- Tag population

- Distance between antenna and tag

- Location of tag in field

- Field propagation

- Used frequency

- Used Antenna. 

- Tuning state

- Noise or crosstalk

- ..

In general to have the best possible reading performance the following settings should be optimized for the given HW setup

- Before scan run exact tuning and during scan use automatic retuning

- Mute found tags by using sessions and targets or Select commands.

- Try optimized antennas for the setup

- If possible move tags

- Use different frequencies, that are allowed in the region

- Try to increase output power and sensitivity

- Use adaptive Q adjustment for faster anti-collision

- ..

BR

1 reply

Nick K
Nick KBest answer
ST Employee
April 18, 2023

Hello,

Reading "weak" tags depends on different factors. Its not possible to have one configuration setup for all possible application/HW setups. The following list gives an overview of the most important factors that may influence the read performance. 

- Tag population

- Distance between antenna and tag

- Location of tag in field

- Field propagation

- Used frequency

- Used Antenna. 

- Tuning state

- Noise or crosstalk

- ..

In general to have the best possible reading performance the following settings should be optimized for the given HW setup

- Before scan run exact tuning and during scan use automatic retuning

- Mute found tags by using sessions and targets or Select commands.

- Try optimized antennas for the setup

- If possible move tags

- Use different frequencies, that are allowed in the region

- Try to increase output power and sensitivity

- Use adaptive Q adjustment for faster anti-collision

- ..

BR