물/액체 검출 센서 -MCP606
(WATER DETECT 3 CLICK)
개요
- 본 제품은 물/액체 검출 센서 -MCP606입니다.
- MCP606 op Amp기반으로 디자인된 센서보드와 물 접촉부가 포함된 제품입니다.
- 물 접촉부와 앰프보드는 와이어를 통해 결선이 가능합니다.
특징
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HOW DOES IT WORK?
Water Detect 3 Click is based on the MCP606, a micropower CMOS operational amplifier from Microchip. The way it works is very simple. If the electroconductive water detection area (additional board that comes in the same package as this Click board™) gets wet, it feeds the inverting input of the MCP606 operational amplifier. The MCP606 then compares this voltage to the reference voltage made as a voltage divider, of which one part is a 10K trimmer potentiometer, and the other is MCP1501, a high-precision buffered voltage reference from Microchip. By trimming this potentiometer, you can set the threshold for an MCP606, thus alarming the host MCU when there is enough water conductivity in an electroconductive water detection area.
The MCP606 on this Click board™ functions as a comparator. When the sensory area is dry, its resistance is near infinite, and the voltage applied to the inverting terminal of the comparator equals VCC. The water detection area is actually made of exposed conducting wires - simple but effective technology.
Water Detect 3 Click uses an interrupt INT pin to alarm the host MCU of the water presence. Besides the interrupt, Water Detect 3 Click will also notify you with a DETECT red LED, as it is connected to the INT pin.
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 Miscellaneous Applications Can be used for the development of a household flood alarm sensor, rain detector for smart buildings, or water tanks that act as a limit switch for a pump On-board modules MCP606 - micropower CMOS operational amplifier from Microchip Key Features Separate board for water detection in the same package, detection area made of exposed conducting wires, calibration potentiometer, interrupt output, LED for visual presentation, and more Interface GPIO ClickID Yes Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V