You are so proud of your ability to auto update your jammer, and it is a good idea. However you are using a serial connection, last time I checked that stopped being any sort of standard around 5+ years ago.
So for someone to update there unit are they going to also have to buy a 5+ year old laptop? Or are you going to provide a power supply so they can bring it in the house? Also will you have to have drivers? What about the updating software what OS's do you plan on supporting?
Look at this picture:
Why does your board look like it could control a small computer, while LA / Blinder get by with something very basic?
While observing this page for the laser star.
I also notice that you have a Blinder look alike level that I dont see how you would attach to the unit to check to see how level it is. And you are also providing the same exact mounting brackets that are found with a retail lidatek. Just found that a little odd.
And by examaning this picture:
Why is it that you are using a HUGE 12v power plug to power your unit? Honestly that is going to be very easy to break. And on your main board it looks as if there is only ONE connection for a jammer heard.
Just some thoughts.