MRF24J40 connection to Arduino Posted on October 18, 2015 by GadgetNate Pin mapping: MRF Arduino GND 1 GND RESET 2 6 INTR 4 2 Interrupt 0 SDI 5 11 MOSI SCK 6 13 SCK SDO 7 12 MISO CS 8 7 VIN 10 3V3 Share this:ShareEmailPrintFacebookTwitter