Bee Motion S3 is a feature rich ESP32-S3 with a built-in PIR motion sensor that makes building your motion detection based projects easy. This compact board is feature packed with PIR sensor, light sensor, RGB LED, 2 LDOs, LiPo charging circuitry, battery voltage monitoring and a Stemma connector for easily adding Adafruit or Sparkfun sensor boards to your project.

Bee Motion S3 gives you full control of your hardware, with no cloud services that store or sell your sensor data.

What kind of projects can you make with the Bee Motion S3?

• Put one in front your pet's food dish to be notified when they're eating and track their eating habits.
• Make a night light using the built in motion sensor, light sensor and RGB LED.
• Control a soldering iron to shut off when it no longer detects motion in case you forget to turn it off manually (external relay required).

The possible use cases are endless.

Compatible with Arduino, CircuitPython, MicroPython, and ESPhome

The Bee Motion S3 supports many different programming languages so you can use it with your favorite programming language. Not only are multiple languages supported, I also provide many example sketches in each language along with helper libraries to help make getting your project up and running as easy as possible. Check out the project’s GitHub repo for all the code examples.

Features & Specifications

• ESP32-S3 embedded, Xtensa® dual-core 32-bit LX7 microprocessor, up to 240 MHz
• 8 Mb flash
• 512 KB SRAM
• 384 KB ROM
• Wi-Fi & Bluetooth
• PIR Motion Sensor
• Trim pot to adjust PIR sensitivity
• Ambient Light Sensor
• Dual LDOs
• < 100 uA deep sleep quiescent current
• RGB LED
• LiPo Charging
• Stemma/Qwiic Connector
• USB Type-C
• Arduino, CircuitPython, MicroPython & ESPHome

Comparison Table

Support & Documentation

The Bee Motion S3 is fully open source which you can find all the relevant documentation in our GitHub repo.