2PCS NRF24L01 2.4GHz 2Mbit/s Wireless Data nsmission RF nsceiver Module Board 1.9-3.6V For DIY

NRF24L01 is a single-chip nsceiver chip that works in the 2.4-2.5GHz world-wide ISM frequency band. The wirele nsceiver includes: frequency , enhanced SchockBurstTM mode controller, power amplifier, crystal amplifier, modulator, demodulator, output power, selection and protocol The settings can be set through the interface. Very low current consumption. When working in nsmit mode, when the nsmit power is 6dBm, the current consumption is 9.0mA, and the receive mode is 12.3mA. The current consumption mode is lower in power-down mode and standby mode.

The ball is open to the ISM frequency band, the maximum nsmit power is 0dBm, and it can be used without a .Supports data reception of six s

1. Low operating voltage: 1.9~3.6V low voltage operation2. High speed: 2Mbps, because the air nsmiion time is very short, the collision phenomenon in wirele nsmiion is greatly reduced ( sets the air nsmiion rate of 1Mbps or 2Mbps)3. Multi-frequency points: 125 frequency points, meeting the needs of multi-point communication and frequency hopping communication4. Ul-small: built-in 2.4GHz , small size, 15x29mm (including )5. Low power consumption: When working in response mode communication, fast air nsmiion and startup time greatly reduce current consumption.6. Low application cost: NRF24L01 integrates all high-speed signal proceing parts related to RF protocols, such as: automatic rensmiion of lost data packets and automatic generation of response signals, etc. The interface of NRF24L01 can be connected by using the hardware port of the microcontroller or using the microcontroller. The I/O port is simulated, and the internal FIFO can interface with various high and low speed microproceors, which is convenient for using low-cost single-chip microcomputers.7. Ease of development: Since the link layer is fully integrated on the module, it is very easy to develop. Automatic rensmiion function, automatic and rensmiion of lost data packets, rensmiion time and rensmiion times can be controlled by to automatically store data packets that have not received a response signal. Automatic response function, after receiving valid data, the module automatically sends a response Signal, no need for additional prograng Carrier - fixed frequency Built-in hardware CRC error and point-to-multipoint communication addre control Data packet nsmiion error counter and carrier function can be used for frequency hopping settings Can set six receiving addrees at the same time, optional The standard pin of the open receiving is Dip2.54MM pitch interface, which is convenient for embedded applications.

The voltage range of the VCC pin is between 2.0V and 3.6V. It cannot be outside this range. If it exceeds 3.6V, the module will be ed. The recommended voltage is about 3.3V. Except for the power supply VCC and the ground terminal, the rest of the pins can be directly connected to the IO port of an ordinary 5V microcontroller without level conversion. Of course, it is more suitable for microcontrollers with about 3V.

Precautions:1. When connecting with the P0 port of the 51 series microcontroller, a 10K pull-up needs to be added, and it is not neceary to connect with other ports. For other series of microcontrollers, if it is 5V, please refer to the output current of the IO port of this series of microcontrollers. If it exceeds 10mA, a series is required to divide the voltage, otherwise it is easy to the module! If it is 3.3V, it can be directly connected to the IO port of the nRF24l01 module. Line connection, such as AVR series microcontroller. The rate of the module can support up to 10M, and it is generally recommended to use an rate of 1M or several hundred K.2. The wirele module is an electrostatic sensitive device. Please pay attention to electrostatic protection when using it, especially in dry winter. Try not to remove the devices on the touch module to avoid unneceary damage.3. It is recommended to use a DC power supply with small ripple for the wirele module, and the working voltage is recommended to work at 3.3V. The grounding of the module should be stable and reliable, and the ground wire should be as close as poible to the general ground of the power supply. If a switching power supply is used, the decoupling must be strengthened to prevent the ripple and peak of the switching power supply from affecting the working characteristics of the module.4. The module uses a , which is easily affected by external lines. When using it, please do not route lines or p devices under and around the . If poible, it is best to hollow it out. The frequency of 2.4G is relatively high, and various materials have certain influences. Generally, plastics have little influence. If there are metal objects, it will have a relatively obvious influence. At this time, it is recommended to use SMA feeder to connect an external SMA .