Introduction:
USB to nRF24L01+ module realizes 2.4G wireless module SPI interface to TTL serial port and then converts to USB interface communication through USB to TTL serial port chip. That is, USB interface 2.4G wireless module = 2.4G wireless module SPI interface + STM32 microcontroller + USB to serial chip CH340. The customer does not need to know the communication protocol of the 2.4G wireless module in detail. It only needs to know how to use the serial port to operate. The serial communication assistant can configure the wireless communication parameters through several AT commands. The system parameter setting is not lost when power is off. After the power, keep the last state. Built-in watchdog anti-crash program for stable operation in harsh industrial control environments. Shorten the development cycle and quickly verify and test your own wireless communication system. The RFX2401C RF front-end amplifier chip can amplify the wireless signal up to 22dBm, effectively increasing the distance of signal communication.
Parameter:
1. The number of valid bytes for a single transmission: 1-31 bytes
2. Communication format with other wireless modules: the 0th bit is the byte length of the transmitted data.
3. Open communication distance: theoretical maximum 500m (250Kbps)
4. Support 32/64 bit Windows version system
Instructions:
Use USB to TTL serial board to connect this module, TX and RX cross wiring, the onboard indicator will be on after the USB is plugged in, and the indicator will flash when there is data. Install the USB to serial port driver CH340 to the computer, and open the serial port assistant to send the AT command configuration parameters.
Note:
1. This module has no schematic and onboard MCU source code available.
2. All commands are in uppercase, punctuation must be half-width punctuation in English, no spaces
3. Unchangeable parameters:
4. The address must be 5 digits in length
5. The data length must be 32 bytes
6. Transmitting power is 0dbm
