Features

• Description
• This is not your normal Passive Infrared(PIR)sensor! The SparkFun AK9753 Human Presence Sensor Breakout is a Qwiic-enabled, 4-channel Nondispersive Infrared(NDIR)sensor. Each channel has a different field of view, so not only can the AK9753 detect a human, but it can also tell which direction the person is moving. To make it even easier to *** this breakout, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system. However, we still have broken out 0.1" spaced pins in case you prefer to *** a breadboard.
• The onboard AK9753 is a digital sensor giving you a 16-bit digital value over I2C. Each of the four sensors outputs the IR current in pico-amps. A PIR reading can vary from roughly -200(no human present)to 1500 when a human is detected standing in front of a given channel, but it varies due to environmental factors and other heat sources in view. We've written a full library to control the sensor and included examples showing how to output the sensor readings you need, making this breakout even easier to handle!
• Note:The I2C address of the AK9753 is 0x64 and is jumper selectable to 0x65 or 0x67. A multiplexer/Mux is required to communicate to multiple AK9753 sensors on a single bus. If you need to *** more than one AK9753 sensor consider using the Qwiic Mux Breakout.
• The SparkFun Qwiic connect system is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards *** 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.
• Get Started with the Human Presence Sensor Breakout Guide
• Features
• Qwiic-Connector Enabled
• Quad infrared sensor module
• 16-bit reading on all four channels
• Digital I2C Interface
• Voltage:1.7V to 3.3V
• Extremely low current:100μA