If you want to build a cost-effective wireless communication system, this Wireless Transceiver module is an excellent choice! It offers a reliable balance between performance and affordability. You can integrate it with your own MCU/ARM/PIC/AVR/STM32 system. This NRF24L01+ module features a power amplifier and SMA antenna, supporting wireless communication up to 800+ meters in line-of-sight conditions. A host microcontroller can communicate with and configure the nRF24L01+ via a 4-pin Serial Peripheral Interface (SPI). The configuration registers are accessible through the SPI connection. Configurable parameters include channel frequency (125 selectable channels), output power, and data rate (250kbps, 1Mbps, and 2Mbps). The on-chip voltage regulator supports supply voltages from 1.9 to 3.6V. The module has 5V tolerant inputs, allowing direct connection of SPI pins to compatible controllers such as Arduino. Internal filtering helps meet RF regulatory standards. The module uses Gauss Frequency-Shift Keying (GFSK) modulation and includes fast Automatic Gain Control. The module has an Interrupt Request (IRQ) pin that can wake the host microcontroller (e.g., for Arduino) from sleep mode when a transmission is received, enabling significant energy savings in battery-powered devices. Range: 800+ meters line of sight Frequency: 2.4GHz ~ 2.5GHz Working Voltage: 3–3.6V Max Max Current: 115mA Multi-frequency: 125 channels Color: Black Material: PCB + Plastic + Metal Package Contents: 4 x Wireless Module 4 x Antenna 4 x NRF24L01 Wireless Module Breakout Adapter Note: Light and display settings may cause slight color differences between the image and actual item. Measurement error is +/- 1–3cm.