pH 측정 모듈 -pH EZO
(EZO CARRIER CLICK - PH)
개요
- 본 제품은 pH 측정 모듈 입니다.
- pH EZO 모듈을 탑재하고 있는 제품으로 사용하기 쉬운 데이터 프로토콜, 간단한 명령 체계, 유연한 보정 프로토콜을 가지고 있습니다.
- 0-14 pH의 pH값을 측정할 수 있습니다.
- I2C/UART 인터페이스를 가지고 있으며, 솔더 점퍼에 따라 3.3V/5V 시스템과 사용할 수 있습니다.
특징
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HOW DOES IT WORK?
EZO Carrier Click - pH is based on the EZO™ pH, a pH measurement interface circuit board from Atlas Scientific. It allows you to interface a pH measurement probe, which measures the potential of hydrogen, by sinking the probe into the solvent you want to measure the pH. The EZO Carrier Click - pH comes with the BNC connector for interfacing the appropriate probe, which MIKROE also offers. The EZO™ pH needs to be isolated from the host MCU; therefore, this Click™ board comes with the Si8400AB, a bidirectional isolator from Skyworks. The isolator provides a standard bidirectional and I2C communication with a clock frequency of up to 1.7MHz.
The EZO™ pH circuit is a very sensitive device, and the sensitivity is what gives the pH circuit its accuracy. It is capable of reading micro-voltages that are bleeding into the solvent. So, to eliminate the electrical noise, besides the Si8400AB isolator, the power supply voltage is also isolated. For this purpose, this Click™ board is equipped with the ROE-0505S, a DC/DC converter from Recom. The EZO™ pH has a flexible calibration protocol allowing for single-point, two-point, or three-point calibration. The temperature compensation should be taken into account. The EZO™ pH features sleep mode, continuous operation, find function, export/import calibration, on-module status LED, and more.
EZO Carrier Click - pH can use a standard 2-wire UART interface to communicate with the host MCU with the default baud rate of 9600bps. While using the UART interface, you can use the library we provide or a simple ASCII set of commands. You can also choose a standard 2-wire I2C interface over the COMM SEL jumpers.
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 Environmental,Measurements Applications Can be used for the development of food-grade analyzers, chemical products analyzers, water quality measuring devices, and more On-board modules EZO™ pH - pH measurement interface circuit board from Atlas Scientific Key Features High stability and accuracy, easy-to-use data protocol, simple command structure, flexible calibration protocol, works with any off-the-shelf pH probe, noise immunity, completely isolated data and power supply lines, and more Interface I2C,UART ClickID Yes Compatibility mikroBUS™ Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V
문서
연관제품
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