some interesting microcontrollers and peripherals. each of these are affordable and could support a productive and engaging computing environment.
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ATmega644:
https://www.aliexpress.com/item/1005010119032713.html
(4K RAM)
ATmega1284:
https://www.aliexpress.com/item/1005010509665052.html
(16K RAM)
ILI9341 TFT Display
https://www.aliexpress.com/item/1005003152078101.html
(~6 cm x 10 cm)
