MAX187 12-bit ADC with 3v external reference provided a sufficient resolution for the altimeter. To make the calculation accurate, a temperature sensor (DS18S20) is also attached to the microcontroller. The following picture shows the Altimeter in action displaying pressure, height, temperature and output voltage of the pressure sensor.
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good morning my name is Hernan searching the web found your blog and I found very interesting about your project Altimeter and I'm trying to make a pressure gauge but with a motorola MPX2200DP but I had trouble it would be possible I would appreciate you collaborate your help and I could not do anything about this and no longer do
excuse the inconvenience and thanking your help
ATT Hernan G e-mail Dcgaman@gmail.com
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