Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si If you want to make your wireless communication system with low cost, this Wireless Transceiver module is the suitable module to ! It can achieve a good balance between wireless transition performance and cost! You can easily make it with your own MCU/ARM/PIC/AVR/STM32 system! What's more, this NRF24L01+ module is designed with amplifier and antenna, this allowed you the wireless communication up to 800+ meters! (No barrier) A microcontroller can communicate and configure the nRF24L01+ over a 4-pin Serial Peripheral Interface (SPI). The configuration registers are accessible via the SPI connection. Configurable parameters include channel frequency (125 selectable channels), output , and data rate (data rates: 250kbps, 1Mbps, and 2Mbps). The on-chip voltage regulator accepts supply voltages from 1.9 to 3.6V. The module has 5V tolerant inputs allow for direct connection of SPI pins to the ( with) for arduinoIDE. Internal filtering results in high margins of meeting RF regulatory standards. The module radio uses Gauss Frequency-Shift Keying (GFSK) modulation as as fast Automatic Gain Control (). The module contains an Interrupt Request () pin can be used to wake the microcontroller, (: for ArduinoIDE), from when the module receives a transmission providing great energy savings in battery devices. Range: 800+ meters line of sight Frequency: 2.4GHz ~ 2.5GHz Working Voltage: 3~3.6V Max Max Current: 115mA Multi-frequency: 125 frequency Colour: black Material: PCB+plastic+metal Package Contents: 4 * Wireless Module 4 * Antenna 4 * NRF24L01 Wireless Module Breakout Adapter Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.