USB to nRF24L01+ module enables conversion of the 2.4G wireless module SPI interface to a TTL serial port, then to USB interface communication via a USB to TTL serial chip. This USB interface 2.4G wireless module consists of a 2.4G wireless module SPI interface, STM32 microcontroller, and USB to serial chip CH340. Users do not need in-depth knowledge of the 2.4G wireless module communication protocol, only basic serial port operation. Using a serial port assistant, simple AT commands can configure wireless communication parameters. System settings are retained after power-off and restored upon power-on. Integrated watchdog program ensures stable operation in industrial environments with harsh conditions, shortening development cycles and enabling rapid verification and testing of custom wireless communication systems. The built-in RFX2401C RF front-end amplifier boosts wireless signal output up to 22dBm, significantly extending transmission range. [Product Parameters] - Number of valid bytes per single transmission: 1–31 bytes - Communication format with other wireless modules: First byte indicates data length - Open-field communication distance: Up to 500m (at 250Kbps) - Compatible with 32/64-bit Windows systems - Color: Transparent shell - Material: Plastic - Note: Product appearance and printed text may vary slightly between batches, but functionality remains unaffected Package Contents: 1 x Wireless USB Dongle (Other accessories not included) Note: Lighting and display differences may cause slight color variations between image and actual item. Measurement tolerance: ±1–3 cm.