Feature: 1. Support 51 STM8S STM32 and other microcontroller development boards. 2. The module is nRF24L01P + PA + LNA and its driving method is exactly the same as nRF24L01P. Users can operate according to the nRF24L01P chip manual. 3. The CE pin is connected to the LNA enable pin. When CE = 1, the LNA is turned on. When CE = 0, the LNA is turned off. This operation is identical to the transmit and receive modes of the nRF24L01. In other words, the user does not need to care about the operation of the LNA at all. 4. The CE can be connected high for a long time, but the module must first be set to the POWER DOWN power-down mode when writing to the register. It is recommended to connect the CE to the IO port of the MCU. The IRQ can be disconnected and the interrupt status can be obtained using the SPI polling mode. However, it is recommended to use an external interrupt from the microcontroller. 5. The module's CE pin timing operation can reach the 10us mentioned in the nRF24L01P technical manual, but we recommend changing it to: SPI operation until CE goes high until the transmit interrupt is completed, then keep 1ms high time, then Lower the CE. The purpose is to switch to receive mode immediately after sending the GT-24. If CE = 0, the LNA is turned off, which will adversely affect the receiving sensitivity. Specification: Item Type:Wireless ModuleType:Direct Insert/Patch Mounting(Optional) Serial number product name parameter Summary 1 model GT-24 ———— 2 RF solution nRF24L01P ———— 3 Module size 30.3 x 14.5mm / 1.19 x 0.57in PCB antenna included 4 Working frequency 2.4GHz-2.525GHz Adjustable, 1MHz step 5 Production Process Lead-free environmentally friendly process Machine stickers, products must be machine-mounted to ensure consistent batch reliability 6 Interface mode 1*8*1.27mm/2*4*2.54mm The patch can also be used with the universal board and line. 7 Supply voltage DC: 2.0-3.6V Note: Voltages above 3.6V will cause permanent damage to the module. 8 Communication level 0.7VCC-3.3V VCC refers to the module supply voltage 9 Measured distance 1000m Clear and empty, maximum power, height 2m, 250K air speed 10 Transmit power 4 levels adjustable up to 20dBm About 100mW at maximum power 11 Air speed 250K-2Mbps Level 3 adjustable (250Kbps, 1Mbps, 2Mbps) 12 Shutdown current About 30uA Test conditions: CE=0, power down mode, VCC=3.0V 13 Emission current About 90mA Power supply capacity must be greater than 250mA 14 Receiving current About 20mA CE=1 15 Antenna form PCB antenna / ipex carrier antenna ———— 16 Communication Interface SPI High speed power up to 10Mbps 17 Launch length Single packet 1-32 bytes 3-level FIFO 18 Receiving length Single packet 1-32 bytes 3-level FIFO 19 RSSI support not support Only simple packet loss statistics are supported 20 Receiving sensitivity -B2294dBm@250Kbp ———— 21 Operating temperature -40~+85°C Industrial grade 22 Working humidity 10%-90% Relative humidity, no condensation 23 Storage temperature -40~+125°C --- . Package List: 1 x Module1 x Pin Header Note: Notice the grounding is good, the paving area is large, and the power supply ripple is small. The filter capacitor should be added as close as possible to the VCC and GND pins of the module.