Analog sonar support on pixhawk

@scostic wrote:

Hello, I am trying to have an analog sonar MB1240 working with pixhawk and Copter 3.4.3 with no success. I change the following parameters but I cannot receive any distance measurements. I have checked the cable and the sensor and ar ok. Can you provide some guidance

RNGFND_PIN = “15” # although wiki mentions 14
RNGFND_MAX_CM = “700” (i.e. 7m max range) if using EZ0 or EZ4, “1000” if using EZL0
RNGFND_SCALING = “2.04” (i.e. 7m / 5v) if using EZ0 or EZ4, “4.08” (i.e. 10m / 5v) if using EZL0
RNGFND_TYPE = “1” (Analog)

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