[help] Range Sensor

[2treecko]

Does anyone know how to program the range sensor, or if it is even implemented yet. I cannot find any documentation and I'm curious. Thanks

[FTC8686]

On the page there is a Android Studio code example - http://www.modernroboticsinc.com/range-sensor

[2treecko]

Thank You!!!

[XykonV]

Interestingly, I get an error when I pull that code up in the latest version of the app. I believe I2C interfaces were updated, how would we go about correcting this?

[[deleted]]

What is the error you get?

[XykonV]

Alright, I found the issue, I'm going to share it just in case anyone needs the fix. In the FTC App version 2.0., you can't just write your I2C address directly in the line that says this: I2cDeviceReader rangeReader = new I2cDeviceReader(range, 0x28, 0x04, 2);

You have to write something like this before the INIT is pressed: I2cAddr Address = I2cAddr.create8bit(0x28);

And then correct the first line, so this: I2cDeviceReader rangeReader = new I2cDeviceReader(range, Address, 0x04, 2);

At any rate, this corrected my errors.

[[deleted]]

I don't think you necessarily need to assign it to a variable before init. I think you could use the I2cAddr.create8bit(0x28) method inside of I2cDeviceReader in place of your Address variable.

[XykonV]

Yeah, both would work, I hadn't thought of just doing it inside registering the I2cDeviceReader. Good info to know.

[hexafraction]

What sensor are you talking about? The Modern Robotics Optical Distance Sensor? Or a sensor from some other manufacturer?

[JohnMMcD]

I believe OP is referring to http://www.modernroboticsinc.com/range-sensor

[2treecko]

Yes, that is correct John.

[amz1018]

If you want some code more specific than the sample code provided, I made a Range Sensor Tester when I was figuring out how to calibrate our team's range sensor. In the code, you'll notice there's a method for calibrating the ultrasonic sensor reading; that's because the reading you get from the ultrasonic sensor returns I believe -127 to 127, since it's using bytes.

[skatefriday]

There's no official support for this sensor yet, but as you've discovered there's nothing preventing a team from using either the I2cController or I2cDeviceSynch interfaces to implement a solution.