CR03 – LoRa with Uno Core (868 MHz) (RFM96W/RFM96, ATmega328P/ATmega328)
This xChip is a core radio module, based on the ATmega328P, which is a single-chip microcontroller. This xChip also features an on-board RFM96W LoRa module. The ATmega328P is the same architecture as Arduino Uno, allowing users to program in the Arduino IDE and other IDEs supporting the Arduino Uno, such as PlatformIO and Mbed.
The ATmega328P is Atmels 8-bit AVR RISC-based microcontroller that combines 32 kB flash memory, 1 kB EEPROM and 2 kB internal SRAM, running at 16 MHz. This xChip can communicate using I2C, and UART.
This xChip also features an on-board RFM96W LoRa™ module that provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
The LoRa™ module on this xChip is the 915 MHz version, which forms part of the license-free ISM band for ITU region 2 (North and South America).
Product Features
● 915 MHz center frequency (Software Selectable Center Frequency)
● ATmega328P CPU
● LoRa modem
● Fully static operation
● Built-in temperature sensor with low battery indicator
Applications
● Remote sensing
● Home automation
● Satellite telemetry
Product Specifications
● 168 dB maximum link budget
● +20 dBm – 100 mW constant RF output vs. V supply
● +14 dBm high efficiency PA
● Programmable bit rate up to 300 kbps
● High sensitivity: down to -148 dBm
● Bullet-proof front end: IIP3 = -12.5 dBm
● Excellent blocking immunity
● Low RX current of 10.3 mA 200 nA register retention
● Fully integrated synthesizer with a resolution of 61 Hz
● FSK, GFSK, MSK, GMSK, LoRa™ and OOK modulation
● Built-in bit synchronizer for clock recovery
● Preamble detection
● 127 dB dynamic range RSSI
● Automatic RF Sense and CAD with ultra-fast AFC
● Packet engine up to 256 bytes with CRC
