Hi, I have built the ultrasonic sensor ranger with the help of "2002MAR08_RFD_DA_AN.PDF" but it is not working.
Explanation of the sensor:
Base on the availability of the component I choose,
( I )
- ICM7555 instead of TLC555
- CA3130 instead of CA5160 and
- LM567.
- PIEZO ULTRASONIC SENSOR: Module T40-1601
R40-1601, Center Frequency:
40.0khz, with 1.0 khz variation. Etc.( I I )
- Since the reset pin is remain high after given power on transmitter module, I am adding 10k resistance between ground and reset pin.
- At 5 volt supply [after step ( I I ) . 1 ] to the reset pin, it is generating ultrasonic sound. (Freq of this sound 38.75 khz, because of tolarance of resistor and capacitor)
( I I I )
Nothing happed on receiving end.
Please take look in this issue, and tell me the possible way to solve it.
Thanks
Dibyendu