마이크로웨이브 도플러 모션 센서 -PD-V12
(MICROWAVE 4 CLICK)
개요
- 본 제품은 마이크로웨이브 도플러 모션 센서 -PD-V12입니다.
- 24.1Ghz 마이크로웨이브 트랜시버 PD-V12 를 기반으로 디자인된 제품입니다.
- 물체 검출 거리에 따라 센서 출력 강도가 변하는 제품입니다.
특징
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HOW DOES IT WORK?
Microwave 4 Click is based on the PD-V12, a miniature high-frequency microwave transceiver from Ningbo Pdlux Electronic Technology. This motion sensor is a K-band Bi-Static Doppler transceiver module. It is housed in a metal can and features a built-in resonator oscillator (CRO), providing a stable operation as it improves its front signal-receiving ability and reduces its flank blind area. The Microwave 4 Click detects the frequency shift between a transmitted and a received signal reflected from a moving object within the field of view of the transceiver.
The radiated power (EIRP) emissions of <3mW at maximum meet the FCC and CE rules. The noise voltages at the output port inside an anechoic chamber are measured from 10Hz to 100Hz. The received signal strength (RSS) is measured at the total 1 Ways path loss of 70dB. The module uses two antennas (for RX and TX) with a maximum gain of 0dBi and is designed to be installed in such a way that allows it to operate at closer than 20cm to users or nearby persons.
The produced low-level output is amplified over the MCP6022, a rail-to-rail input/output 10MHz operational amplifier from Microchip. The amplified output goes to the ADC SEL jumper, which allows you to read the data over an analog pin of the mikroBUS™ socket or the MCP3221, a low-power 12-bit A/D converter from Microchip. The jumper is set to an analog pin by default. If the option is the ADC, you can count up to 22.3ksps in I2C fast mode.
As mentioned, the Microwave 4 Click uses an analog AN pin of the mikroBUS™ socket or a standard 2-Wire I2C interface of the MCP3221 to communicate with the host MCU. The I2C of the ADC supports standard (100KHz) and fast (400KHz) modes. Depending on the ADC of the host MCU, the onboard 12-bit ADC could be a better choice.
This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
Type Motion Applications Can be used for the development of intrusion alarms, automatic door openers, presence-sensing applications, and more On-board modules PD-V12 - miniature high-frequency microwave transceiver from Ningbo Pdlux Electronic Technology Key Features Low power consumption, low cost, high sensitivity, plain antenna, additional 12-bit analog-to-digital converter, up to 22.3ksps, uses Doppler shift phenomenon to "sense" motion, and more Interface Analog,I2C ClickID Yes Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V