SparkFun Distance Sensor Breakout - RFD77402 (Qwiic)
SEN-14539 ROHS
The SparkFun Distance Sensor Breakout utilizes the RFD77402 3D ToF (Time of Flight) sensor
module from Simblee to give you the most accurate measurements at short range. The RFD77402
uses an infrared VCSEL (Vertical Cavity Surface Emitting Laser) module to measure the amount of
time it takes to bounce off a target. This allows low-cost millimeter readings up to two meters! To
make it even easier to use this breakout, all communication is enacted exclusively via I
2
C, utilizing
our handy Qwiic system. However, we still have broken out 0.1" spaced pins in case you prefer to
use a breadboard.
Thanks to the RFD77402’s 850nm VCSEL and electronic driver and optical receiver sensor, this
breakout is ideal for distance measurements ranging from 100mm to 2000mm, 1D gesture
recognition, obstacle detection and avoidance in robotics applications, and more! The RFD77402
utilizes an I
2
C interface that supports a direct 8-bit addressing scheme to access the module user’s
register set and an additional 16-bit indirect addressing scheme that is mainly used for debugging
purpose or special operations.
The SparkFun Qwiic Connect System is an ecosystem of I
2
C sensors, actuators, shields and cables
that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm
pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized
connections mean you can’t hook it up wrong.
