Board Overview; Pin Descriptions; Setting The Jumpers - sparkfun ZX Distance and Gesture Sensor Hook-Up Manual

• How to Install FTDI Drivers – If you are programming an Arduino or
using the ZX Sensor demo app, chances are you will need to use an
FTDI

Board Overview

The ZX Sensor works by bouncing infrared (IR) beams of light from the two
LEDs on either side off of an object above the sensor. The bounced light
returns to the receiver in the center of the sensor, and a microcontroller on
the back of the sensor interprets the data. We can read the results using an
I C or UART connection.
2

Pin Descriptions

The ZX Sensor gives us two ports to connect to: I C and UART. You can
see both ports are broken out to the 0.1" thru holes. See the table below for
a list of each pin and its function.
Pin Label
GRN
TXO UART transmit out from the ZX Sensor
RXI UART receive. Not used at this time.
VCC 3.3 - 5 V power supply
GND
BLK Not used, but connected to GND
DR Data Ready. High when there is data to be read via I C
CL
DA

Setting the Jumpers

The ZX Sensor has a couple of jumpers on the back of the board that can
be opened or closed with a soldering iron.
I2C Pullups
The ZX Sensor, by default, comes with 4.7 kΩ pull-up resistors on the SDA
and SCL I C lines. Remove the solder on this jumper using solder wick to 2
disconnect the pull-ups.
I2C Addr
By default, this jumper is open. Close it to change the I C address of the
sensor.
Jumper I C Address
2
Description
Not used
Connect to ground
I C clock 2
I C data
2
2
2
2
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