This module is a compact surface mount dev board for the Si24R1 2.4GHz RF transceiver chip – a cheaper alternative to Nordic’s popular nRF24L01+. Looking to compete directly with Nordic, the Si24R1 is also an ultra low power (ULP) 2Mbps RF transceiver IC for the 2.4GHz band with many similar specs and features.
Features / Specs
- RF Transceiver Chip: Nanjing Zhongke Microelectronics Si24R1
- Operating Voltage: 1.9V – 3.6VDC
- Operating Frequency Range: 2400 – 2525MHz
- Modulation: GFSK / FSK
- Channels: 126 1MHz spaced channels
- Data Rates: 2Mbps / 1Mbps / 250kbps
- Receive Sensitivity (2Mbps): -83dBm
- Transmit Power (Max): +7dBm
- Receive Current (2Mbps): 15mA
- Transmit Current (2Mbps, 0dBm): 12mA
- Standby Current: 15μA
- Shutdown Current: 1μA
- Communication Interface: SPI
- Antenna: 2.4GHz PCB Antenna
- Header Pin Pitch: 1.27mm
- Dimensions: ~(18mm x 12mm x 1.8mm)