RF Link Transceiver 915MHz Sparkfun COM-13909

The RF Link Transceiver 915MHz (SparkFun COM-13909) is the RFM69HCW radio module, a two-way packet radio that can both send and receive data. It connects to a microcontroller over SPI and is built for low-power sensor and control networks, with up to 100 mW of output power and a range of 500 m or more in open air. You need at least two modules to make a link.

RF Link Transceiver 915MHz Specifications

• Radio module: RFM69HCW
• Frequency: 915 MHz
• Output power: programmable from −18 to +20 dBm (up to 100 mW)
• Modulation: FSK, GFSK, MSK, GMSK and OOK
• Data rate: up to 300 kbps
• Sensitivity: down to −120 dBm at 1.2 kbps
• Supply voltage: 1.8–3.6 V (not 5 V tolerant)
• Current: up to 130 mA when transmitting, about 16 mA when receiving
• Interface: SPI
• Packet features: up to 66-byte packets, CRC-16 and AES-128 encryption

RF Link Transceiver 915MHz Applications

• Wireless sensor nodes and home automation
• Two-way remote control and telemetry between microcontrollers
• Long-range, low-data-rate links
• IoT and radio communication projects

What's in the Box

• 1 × RFM69HCW 915 MHz transceiver module (COM-13909)

Tip: Power the module from 3.3 V and use a logic-level converter with 5 V boards such as the Arduino Uno. A simple antenna is a 78 mm wire soldered to the ANT pin. 915 MHz is meant for the Americas and Australia, so check local radio rules before using it.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.