433MHz LoRa Long Range RF Wireless Transceiver Module

Great for Long Range Wireless Communication projects

This LoRa (Long Range) Module uses the Silicon Labs' Si4432 wireless transceiver chip. It is a complete, compact, low-power wireless transceiver module. Silicon Labs' EZRadioPRO Series SI44322009 works in the range of 433MHZ band, and the maximum output power up to +20 DBm which can reach a range of kilometers. The module integrates all RF related functions and devices and offers reliable performance on wireless-related projects

Feature
1, Frequency range :410-440M (antenna matching optimal range, and the domestic as free ISM band)
2, Sensitivity: up to -120 ~-121dBm (1.2Kbps)
Wireless transmitter maximum output power: 20 ~ 20.5dBm (1.2Kbps, 433M)
4, the data transfer rate :0.123-256kbps
5, the modulation mode: FSK, GFSK and OOK
6, power supply :1.8-3 .6 V
7, ultra-low consumption in power-down mode is 10nA (4.21ms), in the standby mode, 300nA, sleep mode 600nA (1.21ms); receive 
current is 18.5mA, maximumemission current of 80mA (200us).
8, digital received signal strength indication (RSSI)
9 timed wake-up function, wireless wake-up function (WUT)
10, the antenna automatically match and the two-way switch control
11 configurable packet structure
12, the front synchronization signal detector
13, 64 bytes of data transceiver register (FIFO)
14 chip integrated low-battery detection
15, the on-chip temperature sensor and 8-bit analog-to-digital converters
16, operating temperature range: -40 to +80 ° C (temperature characteristics and product consistency is much better!)
17, the integrated regulator
18, frequency hopping function
19, the power-on reset function
20 built-in crystal error adjustment function
21, the chip automatically calculate and check CRC-16, and the support of three 16-bit CRC polynomial

Pin Assignment:
1. GND 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
14. GND antenna

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