470MHz 1000m SI4432 Wireless Module 470M 433mhz Wireless Communication Module

1 CND power supply 2 GPIO0 internal module, launch control foot 3 GPI01 internal access module to accept control foot 4 GPIO2 directly connected to the chip GIIO2 pin 5 VCC positive supply 3.3V 6 SDO 0-VDD V digital output provides a serial readback function of the internal control register 7 SDI serial data input. 0-VDD V digital input, this pin for 4-wire serial data clock function 8 SCLK serial clock input. 0-VDDV last month set of inputs. This pin provides a 4-wire serial data clock function 9 NSEL serial interface select input pin,0-VDDV digital input. This pin to 4-wire serial data bus select / enable function, this signal is also used, said the burst read / write mode. 10 NIRQ interrupt output pin 11 SDN Close the input pin. Input 0-VDDV digital. SDN = 0 in shutdown mode, so mode 12 GND access power ground 13 ANT 50 ohm coaxial antenna