A12 Narrow Beam Angle High Accuracy Ultrasonic Range Finder
Adopting waterproof transducer, IP67 suitable for harsh environments.
Build in high-precision distance sensing algorithm and power consumption procedure.
High ranging accuracy, low power, long distance and small angle.
Narrow Beam Angle High Accuracy Ultrasonic Range Finder
Module : DYP-A12
A12 module is a kind of module which uses ultrasonic sensor technology to measure distance. The module adopts high-performance processor and high-quality components, and the product is stable and reliable with long service life. The module uses waterproof ultrasonic transducer, which has strong adaptability to working environment. The module has built-in high-precision ranging algorithm and power management program, with high ranging accuracy, low power consumption, long measurement distance and small measurement angle.
Here comes the detailed specifications of DYP-A12 :
Parameters | A12A series | A12B series | Unit | Remarks |
Operating Voltage | 3.3~24 | V | DC | |
Static Current | <15 | uA | / | |
Operating Current | <10 | mA | / | |
Measuring Continue Duration | ≤50 | ms | / | |
Blind Spot Distance | 25 | cm | / | |
Flat Object Measurement Range | 25~500 | cm | / | |
Reference Angle | ≈21° | - | / | |
Measurement Accuracy | ±(1+s*0.3%) | cm | / | |
Temperature Compensation | Compensate | - | / | |
Remarks:
(1) The temperature is 25 ± 5 °C, the measured object is a 50cm × 60cm flat carton, and the transducer should be perpendicular to the measured object as much as possible.
(2) The test object is the reference data of the white PVC pipe with a distance of 100 cm and the diameter of 75 mm × 100 cm.
(3) The temperature is 25 ± 5 °C, the measured object is 50cm x 60cm flat carton, s is the measurement distance.
Product Features
DYP-A12ultrasonic sensor enables long-distance measurement with a small detection angle, leveraging an intelligent signal processing circuit to minimize the blind area. Featuring a high-precision ranging algorithm, it ensures a minimum error of <5mm. The controllable measurement angle, combined with high sensitivity and robust anti-interference capability, enhances detection reliability. A built-in true target recognition algorithm delivers accurate target identification, while the configurable professional mode supports targeted measurement of human bodies or planar objects.
With versatile output options—high-level pulse width, UART, or switching values—it offers strong interface adaptability. The onboard temperature compensation function automatically corrects deviations, ensuring stable ranging from -15°C to +60°C. Supporting a wide voltage range (3.3~24V), the sensor integrates electrostatic protection on output leads, complying with IEC61000-4-2 standards, and operates reliably within -15°C to +60°C.



Scope of Application



Model Selection
The output format of this series of ranging modules is divided into 10 formats. If there are special requirements that need to modify the response time, angle, communication agreement etc., you need to communicate with our FAE engineers during purchasing.
| No. | Application | Main Spec. | Output interface | Model No. |
| A12A Series | Flat object | Plane object range25cm~500cm;Small angle | UART AUTO | DYP-A12ANYUW-V1.0 |
| UART CONTROLLED | DYP-A12ANYTW-V1.0 | |||
| PWM | DYP-A12ANYMW-V1.0 | |||
| SWITCH | DYP-A12ANYGDW-V1.0 | |||
| RS485 | DYP-A12ANY4W-V1.0 | |||
| A12B Series | People detection | Plane object range25cm~500cm;Stable measurement within 350cm Measure the upper body of the human body | UART AUTO | DYP-A12BNYUW-V1.0 |
| UART CONTROLLED | DYP-A12BNYTW-V1.0 | |||
| PWM | DYP-A12BNYMW-V1.0 | |||
| SWITCH | DYP-A12BNYGDW-V1.0 | |||
| RS485 | DYP-A12BNY4W-V1.0 |
Matters Needing Attention
1. The module will assemble the net cover by default. If the net cover cannot be used or is not needed in the application scenario, special instructions are required when placing an order.
2. When two or more modules are used in the application scenario, it is recommended to use the module with controlled output (high-level pulse width output and UART controlled output) and adopt time-sharing mode to prevent mutual interference between modules.
3. Please pay attention to EMC evaluation during design. Improper system design may cause abnormal function of module.
4. When the boundary application of module limit parameters is involved, the FAE of our company can be contacted to confirm the relevant precautions.
Module Connecting and Using Instruction
The VCC lead of the module is the power supply lead, which is connected to the positive pole of 3.3-24 V power supply. The GND lead of the module is the grounding lead, which is connected to the negative pole of the power supply. Module RX and TX are function leads, which can be connected to the user's equipment as signal input or output. The output modes of modules (high-level pulse width output, UART automatic output, UART controlled output and switch output) are different, and the lead functions are also different.
After the module is connected to the power supply correctly, it is necessary to input a trigger signal in Rx lead (trigger signal is falling edge pulse under high-level pulse width output and UART controlled output; trigger signal is not required under UART automatic output and switch output, and the lead is defined as other functions) to make the module work once. After measurement, TX lead outputs corresponding measurement junction Result (high level pulse or hexadecimal value corresponding to width and distance).