mlx90632 work with raspberry pi

[Mitchell1314]

My team is trying to make mlx90632 to work with raspberry pi, shown as in the following pic. When we execute "sudo i2cdetect -y 1" we can not see anything. Did we miss any steps? like installing driver shown here? if so, could you provide detailed installation steps? note: We have tested our circuit board, and there are no issues.

[Letme]

This is not a kernel driver, kernel driver is already included in kernel. I think it is enabled by default in rpi, but you will need to add the sensor to dts/dtb.

[Letme]

Is there still something that you need help with here?

You will need to configure RPI kernel to enable the driver through menuconfig (I saw it is not in its default defconfig): https://www.raspberrypi.com/documentation/computers/linux_kernel.html#menuconfig

DTS for RPI (depending on which i2c you have this connected should be something in line of):

&i2c1_pins {
	mlx90632: mlx90632@3a {
		compatible = "melexis,mlx90632";
		reg = <0x3a>;
	};
};

(assumed from): https://forums.raspberrypi.com/viewtopic.php?t=113425

[karelv]

Another way of looking at it is to see if you can detect any other device, like an IO extender (ex. PCF8574).
It looks like you have pullup resistors for SDA & SCL on the sensor board, so that is good, but make sure they are connected SDA-pi to SDA-sensor (avoid swap).
On raspberry pi, you need to enable the I2C master function:
https://www.raspberrypi-spy.co.uk/2014/11/enabling-the-i2c-interface-on-the-raspberry-pi/
Sorry if I repeat stuff you already know...