"But unlike all the other Compute Modules, the CM0 has castellated edges like a Pico. That way, a company integrating this into their product can just pick and place it and solder it onto their main PCB, instead of working with more delicate board-to-board connectors."
But wasn't the board-to-board slide-in connection the whole point with other CM models?
geerlingguy and simonw really amaze me at how well and consistently they cover their respective spaces of interest. Great content, easy to read, and thorough! I'm sure there are others doing deep reporting like this on their own subjects. I'd love to read them too.
Jean-Louis Gassée's Monday Notes about tech and Apple. He's been in the business since the 60's, worked at Apple in the 80's, founded BeOS: https://mondaynote.com/
Raymond Chen's The Old New Thing. He's an engineer at Microsoft that has been blogging about maintaining legacy systems, Windows and MS-DOS for over 2 decades. https://devblogs.microsoft.com/oldnewthing/
Hackaday is a good blog too, there's many authors so it can be hit or miss but it's full of curious folks. https://hackaday.com/
So it could be possible to make a small portable screen device with this, or maybe not because (I think) the RPI is not optimized to work on a battery.
I would prefer a touchscreen with it.
I am not talking about a smartphone, because smartphones are often more powerful, more expensive. I would just prefer a device to do simple computing, with full access to the OS.
Smartphones tend to have android and powerful hardware, and a 4G or 5G antenna. I would just be happy with wifi and enough power to run some C or python code.
I am just curious what is the cheapest screen device that is possible to make with this, as long as it has wifi, a touch screen and be completely open. So far RPI is nice, but it's not really what I want.
Castellations also enable use in a "burning fixture" like the below. The fixture has bent pins that hold the PCB physically and connect electrically to the PCB's leads.
"But unlike all the other Compute Modules, the CM0 has castellated edges like a Pico. That way, a company integrating this into their product can just pick and place it and solder it onto their main PCB, instead of working with more delicate board-to-board connectors."
But wasn't the board-to-board slide-in connection the whole point with other CM models?
Looks like you can buy one through the usual suspect - https://www.aliexpress.us/item/3256810106029551.html
geerlingguy and simonw really amaze me at how well and consistently they cover their respective spaces of interest. Great content, easy to read, and thorough! I'm sure there are others doing deep reporting like this on their own subjects. I'd love to read them too.
Jean-Louis Gassée's Monday Notes about tech and Apple. He's been in the business since the 60's, worked at Apple in the 80's, founded BeOS: https://mondaynote.com/
Raymond Chen's The Old New Thing. He's an engineer at Microsoft that has been blogging about maintaining legacy systems, Windows and MS-DOS for over 2 decades. https://devblogs.microsoft.com/oldnewthing/
Hackaday is a good blog too, there's many authors so it can be hit or miss but it's full of curious folks. https://hackaday.com/
I miss Gassée's the Monday Note, it seems he hasn't published one since 2023.
So it could be possible to make a small portable screen device with this, or maybe not because (I think) the RPI is not optimized to work on a battery.
I would prefer a touchscreen with it.
I am not talking about a smartphone, because smartphones are often more powerful, more expensive. I would just prefer a device to do simple computing, with full access to the OS.
Smartphones tend to have android and powerful hardware, and a 4G or 5G antenna. I would just be happy with wifi and enough power to run some C or python code.
I am just curious what is the cheapest screen device that is possible to make with this, as long as it has wifi, a touch screen and be completely open. So far RPI is nice, but it's not really what I want.
You buy any cheap Android phone and run Termux on it.
I didn't know that castellated holes on a PCB were to facilitate SMT.
Sure makes it look like a stamp though… ;-)
Castellations also enable use in a "burning fixture" like the below. The fixture has bent pins that hold the PCB physically and connect electrically to the PCB's leads.
https://www.amazon.com/DIYmall-ESP32-WROOM-32-Programming-Fi...
I it would be great if some company put these into a small 7in tablet. Thats a very underserved form factor in the maker space.