This is the iNav recommended small GPS/Compass module.  It features the Beitian BN-880 GPS module, with HMC5883l I2C compass module.  This module arrives ready to use with iNav/Betaflight.  Just select the baud rate in the settings to be 38400.

Features

• GPS Module,Dual Module Compass
• With electronic compass IC HMC5883L
• 1.25mm spacing between the 6pins
• patch antenna

Resources

• BN-880 GPS Configuration files (Ucenter)

Specifications

• Model:BN-880
• Power Supply:DC Voltage 2.8V~6.0V,Typical:3.3V or 5.0V
• Consumption:Capture 50mA@5V
• Receiving Format:GPS,GLONASS,Galileo,BeiDou,QZSS and SBAS
• Receiving Channel:72 Searching Channel
• Receiving Sensitivity:
  • Trace -167dBm
  • Capture-148dBm
• Positioning Time:
  • Cold Start:avg26s
  • Warm Start:avg25s
  • Hot Start:avg3s
• Level Positioning Precison:2m At Open Wind
• Output Frequency:1Hz-10Hz,Default 1Hz
• Speed Precison:0.1 m/s (Without Aid)
• Acceleration Precison:0.1 m/s (Without Aid)
• Dynamic Characteristics:
  • Max Height:18000m
  • Max Speed:5153m/s
  • Max Acceleration:4G
• UART Interface:UART Port:TXDA and RXDA
• Support Rate: 4800bps to 115200bps,Default 38400dps
• Working Temperature:-40℃-+85℃
• Storage Temperature:-40℃-+85℃
• Size:28mm x 28mm x 10mm
• Weight:10g
• The Module’s Pins:SDA,GND,TX,RX,VCC,SCL