opentags

opentag one

Know where your robots are.

Open ultra-wideband tags for centimeter-precise indoor position — in real time.

From $249

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opentag one pair running two-way ranging

How it works

TWR Two-way ranging. One tag pings, the other replies. Distance from round-trip time.
A B
TDOA Time-difference of arrival. One tag pings, many anchors listen. Position from arrival deltas.
A1 A2 A3 A4 T

Flash from the browser

Flash, log, plot, and calibrate over WebUSB and Web Serial. No toolchain to install, no vendor IDE.

/firmware →