Data Sheet

ManualsBrandsRFbeam Microwave ManualsElectronics24GHz digital radar transceiver

Command List

All values are in hexadecimal notation unless other-

wisenoted.

Param. Default Min Max Name Description

S04 02 01 0A Sampling rate Sampling rate = value*1280Hz

Only valid after reset.

S05 10 01 40 Start up learn Number of FFT blocks that are used to learn the noise threshold average at start up.

01: no average at start up, fastest start up time

40: best average at start up, slowest start up time

Only valid after reset.

S06 01 00 03 Function of miscella-

neous output

Conﬁgurable functions of the miscellaneous output pin. The functions directly repre-

sent the detection register.

Value Function Logic Low Logic High

00 Detection No detection Valid detection

01 Direction Backward / receding Forward / approaching

02 Range Low speed range High speed range

03 Micro detection No detection Valid micro detection

Detailed information about the functions can be found in the command description of

the parameter R00.

S07 1E 14 50 Minimum

thresholdoffset

Deﬁnes the minimum threshold offset in dB with the ground line as reference.

S08 0A 01 30 Minimum

thresholdmargin

Deﬁnes the minimum margin between the noise average and the threshold curve.

S09 0A 00 FF Threshold noise

adaption speed

The speed of the noise average threshold adaption can be set with this parameter.

The value deﬁnes after how many FFT blocks the noise threshold average is adapted

again.

S0A 01 00 01 Use FFT average FFT averaging ﬂag to reduce random noise.

00: averaging off

01: averaging on

Doubles the response and reaction time if enabled.

S0B 01 00 01 Use sensitivity

potentiometer

Flag to enable the usage of the analogue input for the sensitivity.

00: use digital sensitivity setting of parameter D01

01: use potentiometer input for sensitivity setting

S0C 01 00 01 Use hold time poten-

tiometer

Flag to enable the usage of the analogue input for the hold time.

00: use digital hold time setting of parameter D00

01: use potentiometer input for hold time setting

S0D 00 00 01 Use micro detection

for retriggering

Flag to enable the usage of the micro detection to retrigger the detection algorithm.

00: micro detection retriggering disabled

01: micro detection retriggering enabled

Table 8: Class S 8-Bit system parameters