XXX (no decimal point)
the smallest unit is 1Hz,the range 1Hz-999Hz
XX.X (decimal point in ten)
The minimum unit is 0.1Khz; the range of 0.1KHz-99.9KHz
X.X.X.(there are three decimal point)
the smallest unit is 1Khz; the range 1KHz-150KHz
Duty Cycle in the range
0 to 100
1. XXX ( no decimal point )
The minimum unit is 1Hz , and the value range is 1Hz~999Hz ;
2. XX.X ( decimal point is ten )
The minimum unit is 0.1Khz ; the range is 0.1 K H z~99.9K H z
3. XXX ( three digits have a decimal point )
the minimum unit is 1Khz ; the value range is 1K H z~150K H z
Eg frequency display
100 means PWM output 100Hz pulse;
1. Working voltage
5--12V supports micro USB 5.0V power supply;
2. Frequency range
1Hz~150KHz ;
3. Frequency accuracy
the accuracy in each range is about 2% ;
4. Signal load capacity
the output current can be around 8--30ma ;
5. Output amplitude
default 5V V-pp (can be changed by external power supply);
6. Ambient temperature
-30~+70 °C.
The module has three buttons
Set , Up , Down ;
Communication standard
9600 bps
“ S1FXXXT ”
Set the frequency of PWM1 to XXX HZ ( 00 1~999)
“ S1FXX.XT ”
Set the frequency of PWM1 to XX.X KHZ ( 00. 1~99 . 9)
“ S1DXXXT ”
Set the duty ratio of PWM1 to XXX ; ( 00 1~100)
“ S2DXXXT ”
Set the duty ratio of PWM2 to XXX ; ( 00 1~100)
Set the success to return
DOWN ;
Setting failed to return
FALL .