Make a PoV Display With ATtiny13 for $1: I was browsing through AliExpress sometime back and this particular listing caught my attention. 5 Pcs of ATtiny13 microcontrollers for ₹124, that's like $1.5. That's like $0.3 (₹25) per MCU. Isn't that amazing, a programmable microcontroller! for ₹…