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Review: The Smallest GPS Module – NamelessRC TinyGPS

Review: The Smallest GPS Module – NamelessRC TinyGPS

The TinyGPS module from NamelessRC weighs only 1.6g, and at the size of a fingernail, it’s probably the smallest GPS module for Betaflight and iNav. It’s perfect for light weight long range FPV drones such as the Rekon3 Nano Long Range and Flywoo Nano Hex.

Where to Buy TinyGPS?

RDQ: https://oscarliang.com/product-n97f

The Smallest and Lightest GPS

I thought the BN180 GPS was tiny, now it looks huge!

NamelessRC TinyGPS bn180 gps compare size

Left: BN180; Right: NLRC TinyGPS

Weight confirmed, 1.6g without wires.

NamelessRC TinyGPS weight

Here’s the specs:

  • Input voltage: 5V
  • Ceramic Antenna
  • Receiving Format: GPS,GLONASS,BDS
  • Support Rate: 9600dps
  • Output Protocol: UBLOX NMEA
  • Size: 13mm x 13mm x 5.5mm
  • Weight: 1.6g

There’s no LED indicators, so it’s pretty hard to know whether it’s actually working or not. I guess it’s the lack of physical space.

I wish they dropped the connector and used solder pads instead. That would free up space for the LED’s.

NamelessRC TinyGPS close up bottom

The ceramic antenna is absolutely tiny. Make sure to have it face upward when mounting the Tiny GPS on your quad.

NamelessRC TinyGPS close up top ceramic antenna

This is the GPS antenna and should be pointing upward

How to Use TinyGPS?

The NLRC Tiny GPS connects to the flight controller via UART (TX and RX), it’s exactly the same as other GPS modules like the BN180 / BN220 and Flywoo GoKu Mini GPS.

  • 5V to 5V
  • GND to GND
  • TX to RX
  • RX to TX

To setup Betaflight, follow my tutorial. Note the following settings are different:

  • In Ports tab, set baud rate to 9600 (from 57600)
  • According to the manual, the protocol should be UBLOX, but it didn’t worked for me (wasted an hour of my life waiting), select NMEA and it worked

Slow to Get 3D Fix

NamelessRC TinyGPS module

Yes it’s tiny, but the downside is that it’s very slow to get a 3D fix. That’s to be expected due to the small antenna.

I measured the time it took to get a 3D fix in my backyard (with Betaflight) and compared that with other compact GPS modules:

  • BN180 – 46 seconds
  • Flywoo GoKu GPS – 1:43
  • NLRC TinyGPS – 2:49

It certainly takes longer to get a satellite lock, but it’s not a deal breaker if size and weight are the primary concern: the BN180 is 5.1g while the NLRC TinyGPS is only 1.6g.

Get NLRC GPS here: https://oscarliang.com/product-n97f

If you don’t mind the 3.5g weight difference, I’d recommend the BN180, it’s a lot more sensitive and cheaper too!

Get BN180 here: http://bit.ly/2TWrozB

View the original article at oscarliang.com

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