I am going to design a project that read the RFID and return it through USB. i have tried this via arduino uno and nano. But I need implement this with the smallest development board. When I am going, I found that arduino pico and digispark attiny 85 can be use. I want a circuit diagram of connecting 8 pins of RC522 with digispark or pico
Check to be sure that the tiny85 allows sketches to communicate over USB. I recall that being an “upload only” thing...
How about a DFRobots “beetle”? Beetle Board - Compatible with Arduino Leonardo - ATmega32U4 - DFRobot
KasunKNB:
I want a circuit diagram of connecting 8 pins of RC522 with digispark or pico
Considering that the ATTiny85 only has 8 pins total, you'll be struggling to manage that.
You could consider using an ATTiny84 or Attiny841, which have 14 pins each.
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BJHenry:
Considering that the ATTiny85 only has 8 pins total, you'll be struggling to manage that.
You could consider using an ATTiny84 or Attiny841, which have 14 pins each.
But if there's inbuilt usb/micro-usb supporting, it is very easy to get and connect it to the comuputer and get the id reading