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A comment on I bought 200 Raspberry Pi Model B’s and I’m going to fix them. Parent comment
Let's compare to used laptop:
It has uart and i2c which require a ftdiH dongle or arduino to use on a PC.
Plenty of pwm and motor controller shields not available for PC.
Up to date wifi and Bluetooth on the model 4, which you won't get on a 5 year old laptop.
You can try a couple different OS setups by merely swapping the sd card, or start from scratch in a couple minutes
There are no proprietary batteries that might die; instead you can run off a usb supply or battery brick which you can get anywhere.
Dual HDMI on the 4
Different form factor; can clip on your belt for some sort of wearable Frankenstein project
But yeah, I'd be sure to have a working conventional system first
Edit: forgot i2s digital audio and camera ribbon port
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Let's compare to used laptop:
It has uart and i2c which require a ftdiH dongle or arduino to use on a PC.
Plenty of pwm and motor controller shields not available for PC.
Up to date wifi and Bluetooth on the model 4, which you won't get on a 5 year old laptop.
You can try a couple different OS setups by merely swapping the sd card, or start from scratch in a couple minutes
There are no proprietary batteries that might die; instead you can run off a usb supply or battery brick which you can get anywhere.
Dual HDMI on the 4
Different form factor; can clip on your belt for some sort of wearable Frankenstein project
But yeah, I'd be sure to have a working conventional system first
Edit: forgot i2s digital audio and camera ribbon port