I'm looking for the cheapest AVR chip that I can use to talk to an nrf24 (Nordic wireless module) . My guess from searching is going to be a attiny.
1 Must have SPI for communication.
2 At least two GPIO's
2 1k flash minimum
4 internal or external option to handle 2Mbps SPI speed
Of the requirements above I'm looking simply for the cheapest option and something with availability. Best find so far is the attiny24a. Any advice?