eBay

The JSN-SR20-Y1 dual-probe ranging module can provide a non-contact distance sensing function of 2cm-500cm, and the ranging accuracy can reach as high as 3mm; the module includes a transceiver integrated ultrasonic sensor and a control circuit. The usage of mode one is similar to our HC-SR04 module.

This product adopts industrial-grade dual waterproof ultrasonic probe design, waterproof type, stable performance, and humility to work with all MCUs on the market.

Super close range, the blind zone is only 2CM. Stable ranging is a powerful basis for this product to successfully enter the market.

Features:

1. Small size and convenient to use;

2. Ultra-small blind area measurement.

3. High measurement accuracy;

4. Strong anti-interference;

5. Integrated enclosed waterproof tape probe, suitable for wet and harsh measurement occasions

Specifications and parameters:

	pulse output	the serial output
working voltage	DC:3.0-5.5V
working current	less8mA
the probe frequency	40kHz
the farthest range	500cm
recently range	2cm
long-distant accuracy	± 1cm
resolution	3mm
to measure the angle	60the degree
the input trigger signal	1,20uSthe aboveTTLpulse 2and the serial port to send instructions0X55
the output of the echo signal	output pulse width level signal, orTTL
connection mode	3-5.5V (the positive pole) Trig (the control terminal)RX Echo(Output)TX GND(The negative pole of the power supply
product Size	L48W23H10 mm
operating temperature	-20℃-+ 70℃
part color	PCBboard is blue

functionoutput modedescription:

serial Number	output mode	mode-bit electronic resistance resistance	note
the mode 0	PWM output	suspended	the factory default
mode 1	UART auto output	47kΩ
mode 2	UARTcontrolledoutput	120kΩ	directive 0X55
mode 3	PWM auto output	200kΩ	cycle 200MS
mode 4	low-power PWM output	360kΩ
the Mode 5	switch output	470kΩ

with line probe: The standard line length is 1 meter

mode 0:Moode = open that is no welding. The mode as follows

1, basic working principle:

(1)use IO port TRIG to trigger ranging, and present high-power level signals with a minimum of 20US.

(2)the module automatically sends 8 square waves of 40kHz to automatically detect whether there is a signal return;

(3)if there is a signal, ECHO outputs a high level through the IO port. The duration of the high level is the time when the ultrasonic wave returns from sending it. Test distance = (high level Time * sound velocity (348M/S))/2;

(4) after the module is triggered for distance measurement, if no ECHO is received (the reason is beyond the measured range or the probe does not face the measured object), the ECHO Port will automatically become low after 40ms, marks the end of this measurement, whether successful or not.

2Ultrasonic timing diagram:

figure II,ultrasonic timing

12:Mode=47KUARTautomatic output

UARTthe automatic output mode outputs the distance value (hexadecimal number) according to UART Communication Format. This mode does not need additional trigger signal, and the module can automatically measure once every 100ms, each measurement is completed at the TX pin output to measure the distance value.

(1) pin definition

serial Number	cement grade	pin description	note
2	TX	UARToutput pins
3	RX	no

(2) communication protocol

UART	the baud rate	check bits	data bits	stop
TTL	9600 bps	N	8	1

(3) Format Description

the frame data	description	byte
the frame header	fixed0XFF	1byte
H_DATA	the distance data of the high8bit	1byte
L_DATA	the distance data of low8bit	1byte
SUM	data verification	1byte

note: the checksum only retains the low 8 bits of the cumulative value

for example:

product response FF 07 A1 A7

where check code SUM = A7 =(0x07 0x1 0Xff)& 0x00ff

0x07high data of distance;

0xA1low data for distance;

distance value is 0 x07A1; Converted to decimal is 1953; Unit is: MM

note: If the module cannot measure the data or outputs 0 beyond the distance range. After the Led is powered on, it enters the working mode and automatically flashes by 100ms.

mode2:Mode=120KUARTthe controlled output

UARTthe controlled output mode outputs the measured distance value (hexadecimal number) according to UART Communication Format. This mode needs to add trigger 0x 55 signal to RX foot, and measures it every time the module receives an instruction, each measurement is completed at the TX pin output to measure the distance value. The instruction trigger cycle is larger than 60ms

(1) pin definition

serial Number

cement grade

pin description

note

UARToutput pins

UARTcontrolled to receive a foot

(Command 0X55)

(2) communication protocol

UART	the baud rate	check bits	data bits	stop
TTL	9600 bps	N	8	1

(3) Format Description

the frame data	description	byte
the frame header	fixed0XFF	1byte
H_DATA	the distance data of the high8bit	1byte
L_DATA	the distance data of low8bit	1byte
SUM	data verification	1byte

note: the checksum only retains the low 8 bits of the cumulative value

for example:

product response FF 07 A1 A7

where check code SUM = A7 =(0x07 0x1 0Xff)& 0x00ff

0x07high data of distance;

0xA1low data for distance;

distance value is 0 x07A1; Converted to decimal is 1953; Unit is: MM

note: If the module cannot measure the data or outputs 0 beyond the distance range. After the Led is powered on, the command light will be on every time it is triggered. The frequency is the same as the trigger cycle.

mode3:Mode=200Khigh level (PWM) pulse width automatic output

pulse widthPWMwith automatic output, the module automatically measures at the interval of 200ms, and outputs the high level of pulse width corresponding to the distance after the test. Calculation distance mode reference mode 1

(1) pin definition

serial Number	cement grade	pin description	note
2	Trig	-
3	Echo	high-level pulse width output

Ømode4:Mode=360Klow Power (PWM) high level pulse width controlled output

in the mode of low power consumption, the closing dog of the module is disabled, and this mode is suitable for users powered by batteries. The static electricity consumption is less than 70UA, and the working ranging method is the same as that of Mode 1.

(1) pin definition

serial Number	cement grade	pin description	note
2	Trig	the trigger control pin
3	Echo	high-level pulse width output

Ømode5:Mode=470Kswitch output

the job description module will set a threshold value at the factory, which defaults to 1.5 meters. The module conducts ranging once every 200ms, when the distance value of the detected target is less than the set threshold value,Echopin output high level, the current detected distance value is greater than the set threshold value,Echopin output low level, in order to improve the stability, the factory default is to detect the distance value of the target twice in a row is less than the set threshold value to determine the range to target of detection is less than the set threshold value; ModuleEchothe PIN only outputs high and low level signals without drive capability. Triode drive relay should be added during application. If there are special requirements to modify the threshold value or other settings, special instructions are required when purchasing.

(1) pin definition

serial Number	cement grade	pin description	note
2	Trig	-
3	Echo	switch the High Level Output pin	the obstacle is H, otherwise L

size

Waterproof Ultrasonic Reversing Radar Probe Cable

Parameter:

1.Center frequency kHz:40.0±1.0

2.Output sound pressure dB@30cm/10V sine wave:≥105

3.Receive sensitivity dB / v / μbar:≥-82

4.-6dB Directivity deg:75±10

5.Ringing Time ms:≤0.8

6.Capacitance pf @ 120Hz 25℃:2000±10%

7.Input voltage Vp-p:140

8.Operating Temperature℃:-40~+80

9.Storage Temperature℃:-40~+85

10.Materials of the case:Aluminum

11.Type of the terminal:Connector

12.Length of the lead wire mm:2500±50

JSN-SR04T

Product introduction:

The new version of SR04T-V3.0 recently released solves the problem of blind data jumps and improves the stability of the product. JSN-SR0T4-V3.0 ultrasonic ranging module can provide 21cm-600cm non-contact distance sensing Function, ranging accuracy can be as high as 3mm; the module consists of an ultrasonic sensor and control circuit integrated with transceiver. The usage of mode one is compatible with our HC-SR04 module

Features:

1. Small size and easy to use:

2. Low voltage and low power consumption:

3. High measurement accuracy;

4. Strong anti-interference;

5. Integrated closed waterproof probe with wire, suitable for wet and harsh measurement occasions

Product parameters:

Working voltage: DC: 3.0V-5.5V

Working current: less than 8mA

Probe frequency: 40kHz

The longest range: 600cm

Recent range: 20cm

Long range accuracy: ±1cm

Resolution: 1mm

Mileage angle: 75 degrees

Input trigger signal: 1. TTL pulse above 10uS; 2. Serial port sending command 0X55

Output echo signal Output pulse width level signal, or TTL

Wiring:

3-5. 5V (power +)

Trig (Control) RX

Echo (output) TX

GND (power-)

Working temperature: -20-+70 degree

Function description: 6 modes

Mode 2: M2 short connection is serial port controlled output

Mode 1: M1 short connection is automatic serial output

Mode 0: Mode floating = trigger pulse width output (factory default mode)

Mode 3: Mode welding 200K = automatic distance pulse width output

Mode 4: Mode welding 360K = low power pulse width mode output

Mode 5: Mode welding 470K = switch mode output

Mode 1: Mode=open means no welding. The mode is explained as follows

Basic working principle:

(1) Adopt IO port TRIG to trigger ranging. Present a high level signal of at least 10us.

(2) The module automatically sends eight 40khz square waves and automatically detects whether a signal returns;

(3) When a signal returns, a high level is output through the IO port ECH0. The duration of the high level is the time from the transmission of the ultrasonic wave to the return. Test distance height = (high level time * speed of sound (348M/S))/2.

(4) After the module is triggered for ranging, if the echo cannot be received (the reason exceeds the measured range or the probe does not face the measured object), the ECHO port will automatically become low after 40MS, marking this time The measurement ends, regardless of success.

Mode 2: Mode=47K (or directly short M1 bit) UART automatic output

The UART automatic output mode outputs the measured distance value (hexadecimal number) according to the UART communication format. This mode does not require an external trigger signal. The module can automatically measure every 100ms. The TX pin outputs the measured distance value after each measurement is completed.

Mode 3: Mode=120K (or short M2 bit directly) UART controlled output

The UART controlled output method outputs the measured distance value (hexadecimal number) according to the UART communication format. In this method, the trigger command oX55 signal needs to be added to the RX pin. The module measures once every time the command is received. The foot outputs the measured distance value. The command trigger cycle should be greater than 60ms.

Mode 4: Mode=200K high level (PWM) pulse width automatic output

Under the pulse width PWM automatic output, the module automatically measures at a period of 200ms, and outputs a pulse width high level corresponding to the distance after the measurement. Calculating distance mode reference mode 1.

Mode 5: Mode=360K low power consumption (PWM) high level pulse width controlled output

In low-power mode, the module's shut-down dog is disabled. This module is suitable for battery-powered users. The static power consumption is less than 70UA. The working distance measurement method is the same as mode 1.

Mode 6: Mode=470K switch output

The module will set a threshold value at the factory, the default is 1.5 meters. The module performs ranging every 200ms. When the detected distance value of the target is less than the set threshold, the Echo pin outputs a high level. The currently detected distance value is greater than the set threshold, and the Echo pin outputs a low power. In order to improve the stability, the factory defaults that the distance detected by the target for two consecutive times is less than the set threshold. Signal, no driving ability. Transistor drive relays should be added during application. If there are special requirements, you need to modify the threshold or other settings, you need to specify when purchasing.

Product features:

JSN-SR04T-V3.0 ultrasonic ranging module can provide 21cm-600cm non-contact distance sensing function, ranging accuracy up to 3mm; the module includes a transceiver integrated ultrasonic sensor and control circuit. The usage of mode 0 is similar to our HC-SR04 module. This product adopts an industrial-grade integrated ultrasonic probe design, is waterproof, has stable performance, and can easily work with all MCUs on the market.

1. Small size and easy to use

2. Wide power supply range and low power consumption

3. High measurement accuracy and high resolution

4. Small detection blind area, longer distance

5. Diversified output modes, pulse width output, serial port output, switch output.

Product parameters:

Working voltage: DC: 3.0-5.5V

Working current: less than 8mA

Probe frequency: 40kHz

The farthest range: 600cm

Closest range: 21cm

Long distance accuracy: ±1cm

Resolution: 3mm

Measuring angle: 75 degrees

Input trigger signal: 1. TTL pulse above 20uS 2. Serial port sending command 0X55

Output echo signal: output pulse width level signal, or TTL

Wiring mode: 3-5.5V (power supply positive) Trig (control terminal) RX Echo (output terminal) TX GND (power supply negative)

Working temperature: -20℃—+70℃