Arduino UNO as a playground for SI4432 RF transmitter chip.
Arduino XL4432-SMT
Uno Transmitter
+----------+ +-----------+
| 3.3V |--------------------------+------| VDD ANT |>-----))))))
| | | | |
| | Sparkfun | | |
| | BOB-12009 | | |
| | +-----------+ | | |
| 5V |----------| HV LV |---+ | |
| SCK 13 |>---------| 5V 3.3V |>-------->| SCLK |
| MOSI 11 |>---------| 5V 3.3V |>-------->| SDI |
| SS 10 |>---------| 5V 3.3V |>-------->| NSEL |
| DOUT 7 |>---------| 5V 3.3V |>-------->| SDN |
| | | | | |
| | | GND |---+ | |
| | +-----------+ | | |
| | | | |
| GND |--------------------------+------| GND |
| | | | |
| 8 |>----STNDBY-LED----220Ω---+ | |
| | | | |
| DOUT 9 |>-----BUSY-LED-----220Ω---+ | |
| | | |
| INT0 2 |<-------------------------------<| NIRQ |
| MISO 12 |<-------------------------------<| SDO |
+----------+ +-----------+
reg-get ADDR [MSB:LSB]
reg-set ADDR VALUE
power [ON/OFF]
freq 433.92
recv [LENGTH]
send DATA
jam
listen