LoRa stands for Long-Range, referring to a modulation technique whose speciality is low power transmission of small data packets perfect for Internet of Things applications. Using either point-to-point radio or LoRaWAN you can send data from a node in a remote location back to your base station to check in on sensors or track equipment. Communication is possible in the other direction as well to send commands or control actuators. This board is based on the Semtech SX1276 transceiver, but the module boasts a whopping 1W output power. All that extra it possible to send small messages up to 9 miles using common rubber-duck type antennas.
In addition to more transmission power the SparkX SAMD21 Pro RF 1W gets more computational power courtesy of the SAMD21 microcontroller running at 48 MHz. We used the additional GPIO pins to permanently enable LoRaWAN signals. This means more pins for you to connect to sensors and actuators, even when connecting to a LoRaWAN network like The Things Network.
Features of SparkX SAMD21 Pro RF 1W LoRa
- Semtech SX1276 transceiver with 1W amplifier
- PTH wire U.FL antenna connections
- Atmel SAMD21 microcontroller with Arduino bootloader
- 4MB flash on separate SPI lines
- 15 IO pins:
- 2x SPI
- 1x UART
- 5x analog
- 2x digital
- Qwiic enabled with 2 ports
- Onboard 5V and 3.3V regulators
- Barrel jack connector or PTH for battery input (up to 15V)
- Battery power on/off switch
- USB connection for programming and serial output
- 1 x SparkX SAMD21 Pro RF 1W LoRa
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