topic Re: Trouble using the MPX10GP when connecting it to my Arduino in Sensors https://community.nxp.com/t5/Sensors/Trouble-using-the-MPX10GP-when-connecting-it-to-my-Arduino/m-p/282743#M594 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">The MPX10GP is of the differential output type with </SPAN><SPAN lang="CS" style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">output voltage in the mV range. To read the output with any useful resolution, you will need to increase the gain of the </SPAN><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">MPX10GP using a differential amplifier. You can build one yourself (many circuits available online), but I would strongly recommend buying a single chip version of the most generally useful variety, called an "instrumentation amplifier".</SPAN></P><P></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">TI makes a bunch of these in 8-pin DIPS and the only thing you need to do to set the gain is choose a gain resistor. For instance, the INA122 <SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">instrumentation amplifier</SPAN> is inexpensive, widely available and suitable for operation from a single +5V supply.</SPAN></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';"><BR /></SPAN></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">I hope it helps.</SPAN></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';"><BR /></SPAN></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">Regards,</SPAN></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">Tomas<BR /></SPAN></P></BODY></HTML> Wed, 01 Jan 2014 10:32:49 GMT TomasVaverka 2014-01-01T10:32:49Z Trouble using the MPX10GP when connecting it to my Arduino https://community.nxp.com/t5/Sensors/Trouble-using-the-MPX10GP-when-connecting-it-to-my-Arduino/m-p/282742#M593 <HTML><HEAD></HEAD><BODY><P>I am having trouble getting usable values from the MPX10GP when connecting it to my Arduino.&nbsp; The values hover around 520 and can be influenced only 15 in either direction (analog values should range form 0-1023).&nbsp; Does anyone know how to wire this up correctly or if I am doing something else wrong?</P></BODY></HTML> Tue, 03 Feb 2026 23:08:02 GMT https://community.nxp.com/t5/Sensors/Trouble-using-the-MPX10GP-when-connecting-it-to-my-Arduino/m-p/282742#M593 admin 2026-02-03T23:08:02Z Re: Trouble using the MPX10GP when connecting it to my Arduino https://community.nxp.com/t5/Sensors/Trouble-using-the-MPX10GP-when-connecting-it-to-my-Arduino/m-p/282743#M594 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">The MPX10GP is of the differential output type with </SPAN><SPAN lang="CS" style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">output voltage in the mV range. To read the output with any useful resolution, you will need to increase the gain of the </SPAN><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">MPX10GP using a differential amplifier. You can build one yourself (many circuits available online), but I would strongly recommend buying a single chip version of the most generally useful variety, called an "instrumentation amplifier".</SPAN></P><P></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">TI makes a bunch of these in 8-pin DIPS and the only thing you need to do to set the gain is choose a gain resistor. For instance, the INA122 <SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">instrumentation amplifier</SPAN> is inexpensive, widely available and suitable for operation from a single +5V supply.</SPAN></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';"><BR /></SPAN></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">I hope it helps.</SPAN></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';"><BR /></SPAN></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">Regards,</SPAN></P><P><SPAN style="font-size: 10.0pt; font-family: 'Arial','sans-serif';">Tomas<BR /></SPAN></P></BODY></HTML> Wed, 01 Jan 2014 10:32:49 GMT https://community.nxp.com/t5/Sensors/Trouble-using-the-MPX10GP-when-connecting-it-to-my-Arduino/m-p/282743#M594 TomasVaverka 2014-01-01T10:32:49Z