ماژول فرستنده گیرنده NRF24L01+PA+LNA مدل GT-24 Mini
- +25 6 % 132,600 تومان
- +50 9 % 128,500 تومان
- +100 12 % 124,400 تومان
- +300 14 % 120,400 تومان
- +500 17 % 116,300 تومان
Description:
This product can be placed in the form of two kinds of interfaces, such as chip type and pin-in soldering type. So, the pin is shipped as standard and is not soldered. Support 51 STM8S STM32 Arduino and other microcontroller development boards
The GT-24 module is a 2.4GHz, 100mW, high speed (up to 2Mbps airspeed), high stability, industrial-grade wireless transceiver integrated data transmission module. The module comes with a high-performance PCB antenna, accurate impedance matching, and the nRF24L01P RF chip, which has higher reliability, more power levels, and longer transmission distance, and lower power than the nRF24L01. In addition, the RFX2401 power amplifier chip is built-in, and the built-in LNA has a receiving sensitivity of 10dBm and operates in the ISM band from 2.4GHz to 2.5GHz. The module has sufficient transmission power, good spectral characteristics, small harmonics, small channel crosstalk, and ultra-small volume.
A model of industrial standards. And it has a standard spacing of 2.54mm in-line interface and 1.27mm patch interface, which is convenient for users to use with different circuits. In addition, the GT-24 module comes with a built-in PCB antenna and an ipx external antenna, which greatly improves the module's charge characteristics.
Introduction to driving methods:
This module is nRF24L01P + PA + LNA, and its driving method is completely equivalent to nRF24L01P. Users can operate according to the nRF24L01P chip manual.
The CE pin to the LNA enable pin. When CE = 1, the LNA is enabled. When CE = 0, the LNA is disabled. This operation is fully compliant with the transmission and reception mode of the nRF24L01. In other words, users don't have to care about LNA operations at all.
CE can be connected at a high level for a long time, but the module must first be set to POWER DOWN power-down mode when writing the register. It is recommended to connect CE to the IO port of the MCU.
The IRQ can be disconnected, and the SPI query mode can be used to obtain the interrupt status. However, it is recommended to use an external interrupt from the microcontroller.
The module's CE pin timing operation can be as high as 10us listed in the nRF24L01P technical manual, but we recommend changing to: SPI operation pre-high CE, until the transmission interrupt is completed, then maintaining 1mS high time and then lowering the CE. The purpose of this is to immediately switch to receiving mode after the GT-24 has been sent. If CE = 0, the LNA is off, detrimental to the reception sensitivity.
Note that the grounding is good, there is a large area of paving, the power supply ripple is small, and the filter capacitor should be added and as close as possible to the module VCC and GND pins.