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si4432-playground's Introduction

si4432-playground

Arduino UNO as a playground for SI4432 RF transmitter chip.

Wiring

  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       |
+----------+                                 +-----------+

Commands

reg-get ADDR [MSB:LSB]
reg-set ADDR VALUE
power [ON/OFF]
freq 433.92
recv [LENGTH]
send DATA
jam
listen

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