This program activates the MAX2837 transceiver to transmit an unmodulated carrier. It also configures the RFFC5071 to downconvert the carrier to a lower frequency. Required Lemondrop -> Jellybean connections: SCK: Lemondrop P3 pin 2 -> Jellybean P9 2 MOSI: Lemondrop P3 pin 4 -> Jellybean P9 4 MISO: Lemondrop P3 pin 6 -> Jellybean P9 6 SSEL: Lemondrop P3 pin 3 -> Jellybean P9 3 SCL: Lemondrop P7 pin 3 -> Jellybean P6 pin 3 SDA: Lemondrop P7 pin 5 -> Jellybean P6 pin 5 SDA: Lemondrop P7 pin 6 -> Jellybean P6 pin 6 VCC: Lemondrop P4 pin 2, 4, or 6 -> Jellybean P17 pin 2, 4, or 6 1V8: Lemondrop P11 pin 2, 4, or 6 -> Jellybean P16 pin 2, 4, or 6 GND: Lemondrop P5 -> Jellybean P13 Required Lollipop -> Jellybean connections: GND: Lollipop P8 pin 1, 3, or 5 -> Jellybean P17 pin 1, 3, or 5 VCC: Lollipop P8 pin 2, 4, or 6 -> Jellybean P17 pin 2, 4, or 6 ENX: Lollipop P4 pin 5 -> Jellybean P5 pin 1 SCLK: Lollipop P4 pin 3 -> Jellybean P5 pin 3 DATA: Lollipop P4 pin 1 -> Jellybean P5 pin 5 Also RF connectors, and you're on your own to get the RF switches configured properly.