Double typing
When I type anything on the top row of the left half or the 2nd row of the left half it will activate both the keys on the top and 2nd row on the corne
9 Replies
It sounds like you might have an issue with one of your rows. This is usually a hardware issue, most likely related to soldering.
You can find troubleshooting steps for this issue in our documentation: https://docs.typeractive.xyz/troubleshooting/rows-columns-not-working
This guide will help you identify which pin on the nice!nano corresponds to the affected rows and how to check the solder joints and for shorts.
If you've gone through these steps and are still experiencing the issue, please let me know by replying to this message or tagging me, and I can try to help further!
Row(s) or Column(s) Not Working | Typeractive.xyz Documentation
Fix row(s) or column(s) not working on your keyboard.
I identified the pins which are being activated together, but I don't see a visual short
Even if you don't see a visual short, there could still be a connection between the pins that shouldn't be there. This can sometimes be caused by a tiny bit of solder you can't easily see.
If you have a multimeter, you can use it to check for continuity between the pins. Put the multimeter in continuity mode (it usually beeps when the probes touch) and touch the probes to the two pins that are activating together. If the multimeter beeps, there is a short. Make sure the keyboard is powered off when you do this.
If you find a short, you can try to carefully remove the excess solder with your soldering iron and some solder wick or a solder pump.
If you don't have a multimeter or are still having trouble, let me know!
I don't have batteries for my multimeter and I tried reworking both sides of the solder and it didn't help
Okay, since you've tried reworking the solder and don't have a multimeter to check for shorts, the next step would be to carefully inspect the pins on both the nice!nano and the PCB where those rows connect.
Look very closely for any tiny strands of solder or debris that might be bridging the pins. Sometimes even a small piece can cause a short.
If you're using hotswap sockets for the nice!nano, you could also try carefully removing the nice!nano and inspecting the sockets on the PCB for any issues.
If you've done a thorough visual inspection and still can't find anything, it might be helpful to see some close-up pictures of the nice!nano pins and the corresponding areas on the PCB.
Let me know if you'd like me to walk you through inspecting those areas more closely or if you're able to share some photos.
I took out the microcontroller and shorting one of those two row pins to a column pin still causes double typing
I took out the microcontroller and shorting one of those two row pins to a column pin still causes double typing
That's interesting. If you're still getting double typing when shorting a row pin to a column pin even with the nice!nano removed, it suggests the issue might be on the PCB itself, specifically with the traces or components related to those rows and columns.
Since you've already reworked the solder and don't have a multimeter, diagnosing this without the nice!nano installed is tricky.
Could you tell me which specific rows and columns are affected? Knowing which ones are shorting together might help narrow down the area on the PCB to inspect more closely.
Also, have you installed the switches yet? If so, are they hotswap or soldered?
it's the top row and the 2nd row on the corne, I have not installed switches yet
I took out the microcontroller and shorting one of those two row pins to a column pin still causes double typing
Thanks for the extra details. Since it's the top two rows and you haven't installed switches, and you're getting double typing when shorting the row pins to column pins even with the nice!nano removed, it strongly suggests there's a short on the PCB itself between the traces for those two row pins.
Looking at the Corne Wireless troubleshooting page, the top row is connected to pin P0.29 and the second row is connected to pin P0.02 on the nice!nano.
With the nice!nano still removed, carefully inspect the area around the pads for P0.29 and P0.02 on the PCB. Look for any solder bridges, stray solder whiskers, or anything that might be connecting those two pads or the traces leading away from them.
If you can't see anything obvious, sometimes a short can be hidden under a component.
Let me know what you find after inspecting that area.