Actual Detection Range and FOV of STHS34PF80?

[mobaid]

Hello everyone,

I’ve been working with the STHS34PF80 sensor and would appreciate some insights regarding its detection range and field of view (FOV). In my tests, I’ve observed that the sensor detects presence effectively up to a range of about 1 meter when I set the presence threshold to 100 LSB. Additionally, the FOV seems to be around 30 degrees.

I’m wondering if these results align with what others have experienced. Is this the typical range and FOV for this sensor under similar conditions, or could there be some optimization or calibration that I’m missing? Any feedback or suggestions would be greatly appreciated!

Thanks in advance!

Note

sensor config:

lpf_m: 04, lpf_p: 04, lpf_p_m: 02, lpf_a_t: 00

sths34pf80_gain_mode_get 7
sths34pf80_tobject_sensitivity_get 2000
sths34pf80_odr_get 8
sths34pf80_block_data_update_get 1
sths34pf80_one_shot_get 0
sths34pf80_presence_abs_value_get 1
sths34pf80_tobject_algo_compensation_get 1
sths34pf80_presence_hysteresis_get 25
sths34pf80_motion_hysteresis_get 25
sths34pf80_tambient_shock_threshold_get 10
sths34pf80_motion_threshold_get 100
sths34pf80_presence_threshold_get 150

[Federica Bossi]

Hi @mobaid ,

We see no problem in the used configuration.

The expected FOV and detection range are much larger.

Can you give us more information about the test environment and conditions?

[mobaid]

Hi @Federica Bossi ,
Here are the test environment conditions :

T ambient	23’C ~ 25’C (Air conditioner)
Application	Indoor office
Sensor to Wall distance	3m
Sensor Hight	1m
Lens	N/A
AVG_TMOS : Number of averaged samples for object temperature	32
AVG_T : Number of averaged samples for ambient temperature	8
Interrupt source	Presence
Presence and motion detection setting
Presence threshold	150
Presence hysteresis	25
Motion threshold	100
Motion hysteresis	25

Thank you .