Overview
The RCWL-0516 is particularly suitable as an alternative to using a PIR motion sensor.
When it detects a moving object, the output changes from a low logic level to a high level (3.3 volts). Appropriately interfaced (Arduino, Fishino or other), it can be used for the automatic opening of electric doors and gates, automatic lighting.
Detection range is about 9 meters.
Tech specs
- Power supply: from 4 volts to 28 volts
- Consumption: typical 2.8 mA; max. 3 mA
- Detection distance: from 5 to 9 meters
- Transmission power: typical 20 mW; max. 30 mW
- Output voltage and current: 3.2-3.4 volts - 100 mA
- Operating temperature: from -20°C to +80°C
- Pin definition: 3V3: 3.3 volt output voltage
- GND: negative power supply
- OUT: when it detects a moving object, it changes from a low level to a high level (3.3 volts)
- VIN: positive power supply from 4 volts to 28 volts
- CDS: if kept low, less than 0.7 volts, the output will always be low even in the presence of motion
Conformities
Get Inspired
Combine the Alvik, Modulinos, Nano ESP32 and the Nicla Vision to create a robot that can respond to your greeting!
Shortly after attending a recent tinyML workshop in Sao Paolo, Brazil, Joao Vitor Freitas da Costa was looking for a way to incorporate some of the technologies and techniques he learned into a useful project. Given that he lives in an area which experiences elevated levels of pickpocketing and automotive theft, he turned his attention to a smart car security system. His solution to a potential break-in or theft of keys revolves around the incorporation of an Arduino Nicla Vision board running a facial recognition model that only allows the vehicle to start if the owner is sitting in the driver’s seat. The beginning of the image detection/processing loop involves grabbing the next image from the board’s camera and sending it to a classification model where it receives one of three labels: none, unknown, or Joao, the driver. Once the driver has been detected for 10 consecutive seconds, the Nicla Vision activates a relay in order to complete the car’s 12V battery circuit, at which point the vehicle can be started normally with the ignition. Through this project, da Costa was able to explore a practical application of vision models at-the-edge to make his friend’s car safer to use. To see how it works in more detail, you can check out the video below and delve into the tinyML workshop he attended here.
