Teensy Human Motion and Presence Alarm Tutorial

Required Materials

Here are the parts used in this build:

• SparkFun Human Presence and Motion Sensor - STHS34PF80 (Qwiic) or
• SparkFun Mini Human Presence and Motion Sensor - STHS34PF80 (Qwiic)
• Teensy 4.0 or Teensy 4.0 (Headers)
• 3D-printed breadboard fixtures
• Red LED
• Green LED
• 470-ohm Resistors (2)
• Mini speaker
• Jumper wires
• Flexible Qwiic Cable - Breadboard Jumper (4-pin)
• Micro-USB cable

Teensy 4.0

DEV-15583

Teensy 4.0 is the latest Teensy, offering the fastest microcontroller and powerful peripherals in the Teensy 1.4 by 0.7 inch …

$23.80

Teensy 4.0 (Headers)

DEV-16997

Teensy 4.0 with Headers offers the fastest microcontroller and powerful peripherals in the Teensy 1.4 by 0.7 inch form factor…

$26.80

SparkFun Mini Human Presence and Motion Sensor - STHS34PF80 (Qwiic)

SEN-23253

The Qwiic Mini Human Presence and Motion Sensor is built around the STHS34PF80 low-power, high-sensitivity IR sensor for pres…

$17.95

Resistor Kit - 1/4W (500 total)

COM-10969

Nothing stops a project dead in its tracks faster than not having the right resistor. These components are arguably the most …

$9.95

Jumper Wire Kit - 140pcs

PRT-00124

This is a time saving kit of 140 jumper wires - cut, stripped, and pre-bent for your prototyping pleasure.

$8.95

Flexible Qwiic Cable - Breadboard Jumper (4-pin)

PRT-17912

This polarized I2C cable insulation is made from silicon making it more flexible than our original Qwiic cable particularly i…

$1.95

SparkFun Human Presence and Motion Sensor - STHS34PF80 (Qwiic)

SEN-22494

The SparkFun Qwiic Human Presence and Motion Sensor is built around the STHS34PF80 low-power, high-sensitivity IR sensor for …

$16.95

Mini Speaker - PC Mount 12mm 2.048kHz

COM-07950

We drove it directly from a 5V PIC to generate the tones for our Simon demonstration game.

$2.50

LED - Basic Red 5mm

COM-09590

LEDs - those blinky things. A must have for power indication, pin status, opto-electronic sensors, and fun blinky displays. …

$0.50

LED - Basic Green 5mm

COM-09592

LEDs - those blinky things. A must have for power indication, pin status, opto-electronic sensors, and fun blinky displays. …

$0.50

*Note, although this project uses the STHS34PF80, we have a range of presence and distance sensors worth checking out for similar projects, like this Human Presence Sensor Breakout!

Components listed are suggested, but can be adjusted to suit. Optionally, a Qwiic Shield for Teensy can further simplify wiring.