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--- soft-robotics:sensors:mps-20n004d0d [2019/02/16 17:38]
avnerus
+++ soft-robotics:sensors:mps-20n004d0d [2021/12/15 16:11] (current)
avnerus
@@ Line 20: / Line 20: @@
 {{:soft-robotics:sensors:mps-pinout.png?400|}}
-=== Circuit ===
+==== Circuit ====
 The circuits I have seen online use two connections to the LM358, first as a differential amplifier and then as a normal amplifier.
 I believe that I can manage with just differential amplification, because it provides both amplification to the signal and eliminating the 2.5v offset of the output.
+**The following setup is for 3.3v on the Teensy**
 {{:soft-robotics:sensors:pressure_sensor_connection_avner.png?800|}}
@@ Line 28: / Line 30: @@
 *Based on the image in "The answer is 42"
-=== Breadboard image ===
+==== Breadboard image ====
 {{:soft-robotics:sensors:breadboard_pressure_sensor.jpg?400|}}
 * I also added 100Uf capacitors because seems like that was recommended.
+==== Raspberry Pi Circuit ====
+To connect the pressure sensor to a Raspberry Pi, the ADS1115 board may be used.
+Below is a Fritzing image of the circuit:
+{{:soft-robotics:sensors:mps20n0040d_pressure_sensor_-_raspberry_pi_bb.png?400|}}
+The pressure is measured as a differential pressure, counting the difference between A0 and A1.
+The Fritzing sketch is available [[https://version.aalto.fi/gitlab/peleda1/puppetbots/-/blob/439b3ef9cbe7f46207e2e06fb6bcbe6fcdbf993c/prototype/fritzing/MPS20N0040D%20Pressure%20Sensor%20-%20Raspberry%20Pi.fzz|here]].