We use cookies to provide our visitors with an optimal site experience. View our privacy notice and cookie notice to learn more about how we use cookies and how to manage your settings. By proceeding on our website you consent to the use of cookies.
The Hall effect sensor in this keyboard only reacts to one magnetic pole, the south pole.
I’d like to make it bipolar, or reverse the polarity to make it compatible with north pole, so I’m looking for parts that will allow me to change the Hall effect sensor.
In the end, the A1304ELHLX-T made this possible.
However, a keyboard would require quite a few sensor ICs, so I’m hesitant due to the cost.
One candidate is the DRV5053VAQDBZR, which seems like a sensor that supports both poles.
However, the 49E’s sensor also seems to be bipolar, and this keyboard only recognizes the south pole unidirectionally.
So, although the DRV5053VAQDBZR is bipolar, I’m concerned that it may also be unipolar, so I haven’t bought either one.
It does appear that the DRV5053 is listed as a bipolar hall effect sensor. They also provide some information on how it will react on page 8 of the datasheet.
When I purchased the DRV5032FADBZR, which has a similar model number, it didn’t work at all.
Is it likely that the DRV5053VAQDBZR won’t work either?
The datasheet is difficult and I don’t really understand it.
The DRV5053 is an “analog out” hall effect sensor. It’s unlikely that is what your keyboard needs. You likely need one with the internal comparator that results in a digital on/off output. The DRV5032 series would do that for you.
When you say the DRV5032FA didn’t work… please explain. Certainly, if you just take a magnet and place it on the sensor, it should change state.
