Description
Description
HC-SR04 (2020 version) is an open ultrasonic ranging module with a size fully compatible with the old version and adding UART and IIC functions. By default, the software and hardware are fully compatible with the old version of HC-SR04; it can be set to UART or IIC mode through a resistor. 2CM blind zone, 4.5M typical longest distance measurement, 2.2mA working current. Using the upgraded demodulation chip RCWL-9206, MCU with UART and IIC functions; make the peripherals more concise, the working voltage is wider (3-5.5V), and the interface functions are more.
Specification:
Professional demodulation and ranging chip RCWL-9206
Support GPIO, UART and IIC three mode interfaces
3V-5. 5V wide voltage power supply
2. 2mA working current
2cm minimum blind area
The default software and hardware are fully compatible with the old version HC-SR04
Ultra-wide measuring range of 2cm-450cm (measuring flat walls)
The periphery is more concise
Working temperature: -10°C-70°C
Technical Parameters:
| Parameter name | Remarks | Minimum value | Typical value | Maximum value | Unit |
| Operating Voltage | 3 | 5. 5 | V | ||
| Working current | 2.2 | 3 | mA | ||
| Maximum detection distance | Smooth the wall | 350 | 450 | 600 | CM |
| Working frequency | 40 | KHz | |||
| Blind spot | Random value in blind zone | 2 | 4 | CM | |
| Detection accuracy | Same temperature | ±2 | % | ||
| Resolution | theory | 1 | mm | ||
| Detection angle | Maximum direction angle | ±15 | ±20 | ° | |
| Measuring cycle time | 200 | mS | |||
| Output interface mode | GPIO/UART/IIC | ||||
| Operating temperature | Plastic probe | -10 | 60 | °C | |
| Operating temperature | Aluminum probe | -10 | 70 | °C | |
Package includes:
1 x Sensor Module
1 x Sensor Module
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