The screen resolution can not be too big but the sampling function for the screen to act as a monitor need some clever user interface and robust function for displaying lower resolutions with the whole screen. This cleverness ought to add much more deleopment cost then the additional unit cost for a higher resolution screen.
Passive cooling will work but it sets a limit on the ambient temperature, especially when put on a thermally insulating table. Wonder what a heat pipe capable of efficiently getting thermal load to two of the chassis edges would cost?
This reminds me about leg scalding consumer laptops and the «pillows» with a fan sold as burn protection.
I have never had to much laptop battery capacity. As the design is right now I would leave the power supply in my service van or even at home and rely on the battery and some complemental USB charging from the charger I anyway need for the mobile phones and other tools. If the laptop has to much battery capacity it would still be useful as a replacement for that charger.
As far as I can see has no one asked for GSM/3G/4G/5G wich I find wise since getting it right is a major design effort. Myself I carry multiple smartphones that use different carrier network to be able to almost allways find some internet service at various locations and the I connect the laptop via Wifi.
Having two ethernet connectors in the laptop is realy nice for making it easy to lend a connection at a site while using the laptop as a pass thru switch. For this to allways work it needs to be able to handle 10/100/1000 Mbit/s and not only 100/1000.
I realy love your project but I would of course buy two of them to have a spare tool for my toolbox. Please do not make it simpler with less I/O ports. Myself I would love to ask for wired m-bus but it is electrically awkward and as far as I know there are no volume efficent implementations of m-bus drivers suitable for this project.
Please pay attention to reasonable moisture resistance with component coatings etc and gracfull failures if I/O connectors get soaked with conductive fluid. I would also realy like some ruggedness in hinges etc and having it fully screw driver dissassembleable(is that an english word?) to aid reapirs and cleaning after unfortunate soaks.
This reminds me about leg scalding consumer laptops and the «pillows» with a fan sold as burn protection.
As far as I can see has no one asked for GSM/3G/4G/5G wich I find wise since getting it right is a major design effort. Myself I carry multiple smartphones that use different carrier network to be able to almost allways find some internet service at various locations and the I connect the laptop via Wifi.
Having two ethernet connectors in the laptop is realy nice for making it easy to lend a connection at a site while using the laptop as a pass thru switch. For this to allways work it needs to be able to handle 10/100/1000 Mbit/s and not only 100/1000.
Please pay attention to reasonable moisture resistance with component coatings etc and gracfull failures if I/O connectors get soaked with conductive fluid. I would also realy like some ruggedness in hinges etc and having it fully screw driver dissassembleable(is that an english word?) to aid reapirs and cleaning after unfortunate soaks.