Require a teeny tiny personal computer that may run Android or Linux? Only have $20? Properly you’re in luck. When we 1st met the Orange Pi (get it?) the corporation was marketing a pleasant Raspberry Pi clone for $15. Now they are promoting a souped up model with every one of the trimmings.
The board involves an Ethernet port and 3 USB ports. It has 1GB of memory, H5 Substantial Functionality Quad-core 64-bit Cortex-A53, and a standalone graphics chip. It supports camera input too as HDMI out and in many cases includes a physical electrical power switch and IR blaster. In quick it is a mini laptop which can likely perform some games, show some HD video, and normally be used in all sorts of home-brew projects.
You could examine out the specs here and order on line. If you only have $5 you'll be able to pick up an Orange Pi Zero with Wi-Fi and Ethernet built-in. It is no Raspberry but who does not like oranges?