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Long-term heart rate and blood oxygen monitoring project
HumidityResolution : 0
On-board Button(A/B) ×2
5inch OLED Module 2D drawings_DXF
Digital I/O Pins:21
Gravity: Lab Grade Analog pH Sensor Kit for Arduino IO Expansion Long-term heart rate and bloodNeed to measure water quality and other parameters but haven't got any low cost pH meter? Find it difficult to use with Arduino? DFRobot analog pH meter, specially designed for Arduino controllers and has a convenient and practical "Gravity" connector and a bunch of features. Instant connection to your probe your Arduino to get pH measurements at 0. 1pH (25 ). For most hobbyists, this great accuracy range and its low cost make this a great tool for
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