Hi, I'm currently using a Teensy 3.6 with an external ADC to read an analog pressure sensor. I'm curious if there's any hope of reading the pressure sensor directly using differential ADC on the Teensy 3.6? (Pins A10 and A11.)
If I got 6 bits of accuracy at around 60hz using the Teensy I'd be happy. (I'm unhappy with the data rate for my current ADC because it's intended for a digital scale and only runs at about 10Hz.)
The ADC is an HX711 and the sensor is a MPX10GP. Currently the HX711 provides power to the sensor at around 2.4 volts and the sensor voltages are about halfway between at around 1.2 volts. (I am guessing it might be a Wheatstone bridge?) The voltage range for the measurements I'm interested in seems to be 13 to 18mV. I'm using the external ADC with its preamp set to 64x gain but that's actually a bit too high since it starts at around 75% and goes to max.
Also, if you know of any alternate parts that might work well with a Teensy I'd be happy to hear it. This is for a breath sensor for a musical instrument.
If I got 6 bits of accuracy at around 60hz using the Teensy I'd be happy. (I'm unhappy with the data rate for my current ADC because it's intended for a digital scale and only runs at about 10Hz.)
The ADC is an HX711 and the sensor is a MPX10GP. Currently the HX711 provides power to the sensor at around 2.4 volts and the sensor voltages are about halfway between at around 1.2 volts. (I am guessing it might be a Wheatstone bridge?) The voltage range for the measurements I'm interested in seems to be 13 to 18mV. I'm using the external ADC with its preamp set to 64x gain but that's actually a bit too high since it starts at around 75% and goes to max.
Also, if you know of any alternate parts that might work well with a Teensy I'd be happy to hear it. This is for a breath sensor for a musical instrument.