Chosen Solution
The Logitech MX Keys keyboard has a feature that will light the backlit keys when your hand is in proximity to it. I can’t see any sensors and wondering if it’s some kind of magnetic field detection?
Harrison Davies the MX Keys keyboard uses two proximity sensors. One is a proximity sensor that uses a magnetic field to turn on the backlighting and number two is a ambient light sensor, which adjusts the brightness to match the ambient light
To anyone curious, there is a brown wire which wraps along the edges of the keyboard and attaches to the board using a screw labeled “PROXY” near the power switch.
Avoid taking this keyboard apart, as the whole backside is not only glued, but tampering with the wire in the slightest confuses the device which will cause the backlight to keep coming on and off constantly with no hands present nearby. I had no choice as I opened it up to clean out a spill, ideally it would need to be recalibrated, but good luck with that. I love this keyboard, but the lack of an always-on backlight mode despite countless customer complaints and Logitech acknowledging the issue is just disappointing. The constant misfiring of the backlight drove me crazy as well so I just ended up disconnecting the wire, it still lights up but only while typing.
Ugh, no joke! When I purchased this, I loved the feel. And figured the software wouldn’t be super high-end, but do what I needed. For the most part it does, except for this annoying lack of options throughout! Though to stay on topic, I have never had a backlit keyboard (besides Apple’s built-in models on the laptops) that do not allow any backlight adjustment! The proximity sensor stuff looks cool, but with a feature such as that, it NEEDS options. Give us 5, 10, 30 mins, an hour, whatever, and the option to keep it on. For creators when doing a video shoot, it’s nice to be able to control every lighting aspect, and this one piece is sorely lacking… GREAT feeling keyboard, and if they listen to these improvements, could make it punch that much higher with some minor programming changes to allow tweak-ability.
Does any one know where is the light sensor on the keyboard? I think if I can cover it with opaque tape I can keep the board back-lit at all times at the sim of your choice. I can live with the proximity one if it turns off while I am not active.
