MPX5010 pressure sensor pin diagram is how, and how to connect the microcontroller?
MPX5010 comes in two packages: SOP and unibodyUsing SOP package: pin 2 connected to power, pin 3 ground, pin 4 for the output, and then the MCU A/D conversion input pin can be.If the unibody package is used:The pin 3 is connected with the power supply, the pin 2 is grounded, and the pin 1 is output, and then the input switch of the singlechip A/D can be switched on.
MPX5010DP pinDevices have 6 pinsPin is the 1 foot gapAre1 Vout analog output (0.2-4.7V)2 GND3 VCC (5V)4 NC5 NC6 NC2. microcontrollerMPX5010DPFilter capacitor VCC is connected to a 100uF and 10uFFilter capacitor Vout 470pF and then received a single chip A/D pin
MPX5010 has a variety of packages (867B-04, 867C-05, 867E-03, 867F-03), and the order of the pins in different packages is different.MPX5010 uses a single 5V power supply, its working principle is the change of current signal through the film pressure acquisition unit weak, after the film temperature compensation unit complementary temperature compensation, the first stage, after the second stage of realizing potential alignment with supply voltage reference end, and the output pin output.In simple terms, MPX5010 useful pins only three: power input Vs, ground input GND, analog voltage output Vout. Where the Vout output voltage represents the induced pressure, the nominal sensitivity is about 450mV/mm hg.So, if you use a single 5V microcontroller, you can use the built-in or external ADC voltage sampling conversion, by the microcontroller through linear calculation of pressure sensor. If you use 3.3V microcontroller, you need to collect through the external ADC, or first through a more precise amplification adjustment, and then through the built-in ADC acquisition.Specific content, you can go to the official website of NXP, check MPX5010 data book, application notes, and reference design.