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NP-RID-Sender

Broadcast-mode UAV remote identification transmitter, compliant with GB 46750-2025, supports MAVLink / DroneCAN, broadcasts operating status over WiFi / Bluetooth

¥120

Product Details ​

Overview ​

NP-RID-Sender is a broadcast-mode UAV remote identification transmitter from NextPilot, compliant with the GB 46750-2025 standard. It broadcasts UAV operating status signals over WiFi or Bluetooth to meet UAV flight supervision requirements. It currently supports MAVLink and DroneCAN connections and works with autopilots such as ArduPilot and PX4 — if you need support for other autopilots or protocols, custom development is available.

Features ​

  • Communicates with the autopilot to obtain UAV operating status;
  • WiFi beacon frame broadcast;
  • Bluetooth 5 broadcast;
  • View UAV status through a web page;
  • WiFi telemetry function;
  • Virtual RID simulation function;
  • Parameter configuration — connect to the device with a serial debug assistant and quickly set all parameters through parameter commands!
  • OTA upgrade support;

Specifications ​

  • Supported main control chips: ESP32-S3 / ESP32-C3;
  • Interfaces: 2 serial ports (autopilot serial port and debug serial port), 1 USB, 1 CAN;
  • Supported input protocols: MAVLink, DroneCAN;
  • Supported transmit signal types: WiFi broadcast beacon frames, Bluetooth 5;
  • Transmit power: 20 dBm;
  • Transmit protocol: GB46750;

Hardware Variants ​

The following hardware versions are currently supported:

  • NP-RID-Sender-S3-GH
  • NP-RID-Sender-C3-PinMini
Hardware AppearanceHardware NameDescription
NP-RID-Sender-S3-GHNP-RID-Sender-S3-GHMain control chip: ESP32-S3
All features available, can be mounted directly on the UAV
External antenna supported
Debug serial port is UART2
NP-RID-Sender-C3-PinMiniNP-RID-Sender-C3-PinMiniMain control chip: ESP32-C3
No external antenna; Bluetooth only, no WiFi broadcast; generally used for testing
Debug serial port is UART0

Specifications Table ​

NP-RID-Sender-S3-GH ​

The external interfaces of each hardware variant are described below:

InterfacePin AssignmentRemarks
USBUSB, Type-CAfter plugging into a computer, two USB devices appear: the first is JTAG (program download and debug), the second is USB-to-serial (UART0), which requires a serial driver
UART1RX: GPIO17
TX: GPIO18
Autopilot serial port
Default baud rate 115200
Connector J6
UART2RX: GPIO44
TX: GPIO43
Debug serial port
Used for debugging and parameter configuration, accessed through the second USB serial port
Default baud rate 115200
Connector J4
CANRX: GPIO38
TX: GPIO47
Connect directly to the autopilot CAN bus

NP-RID-Sender-C3-PinMini ​

The external interfaces of each hardware variant are described below:

InterfacePin AssignmentRemarks
USBUSB, Type-CProgram download and debug, JTAG
UART0RX: GPIO20
TX: GPIO21
Debug serial port
Used for debugging and parameter configuration
Default baud rate 115200
UART1RX: GPIO2
TX: GPIO3
Autopilot serial port
Default baud rate 115200
CANRX: GPIO4
TX: GPIO5
Requires an external CAN transceiver

Downloads ​

BoardCurrent Firmware VersionClick to Download
NP-RID-Sender-S3-GHV1.1OTA app firmware
NP-RID-Sender-C3-PinMiniV1.0OTA app firmware

FAQ ​

Changelog ​

v1.0 ​

Initial version, completing the basic RID functions.

v1.2 ​

Fixed protocol assignment errors, optimized WiFi broadcast, and added time synchronization.

This documentation is licensed under CC BY 4.0. You are free to share, adapt, and use it commercially, provided you give appropriate credit.