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Adafruit EdgeBadge - TensorFlow Lite for Microcontrollers

Adafruit EdgeBadge - TensorFlow Lite for Microcontrollers

The Adafruit EdgeBadge is a compact, credit-card-sized development board built for experimenting with TensorFlow Lite for Microcontrollers. Based on the popular PyBadge platform with an added PDM microphone, it provides everything you need to get started with on-device machine learning — from speech recognition to sensor-based inference.

Powered by the ATSAMD51J19 running at 120 MHz with 512 KB flash and 192 KB RAM, plus 2 MB of QSPI flash for storing TensorFlow Lite models, images, and other assets. The built-in microphone enables micro speech recognition demos out of the box, with Arduino library examples for recognising word pairs like "yes/no" and "up/down".

Key Features

  • ATSAMD51J19 @ 120 MHz – 32-bit Cortex-M4F with 512 KB flash and 192 KB RAM
  • 2 MB QSPI Flash – Storage for TensorFlow Lite models, images, sounds, and fonts
  • PDM Microphone – Front-mounted digital microphone for speech recognition and audio input
  • 1.8" Colour TFT Display – 160×128 pixel screen on a dedicated SPI port
  • 8 Game/Control Buttons – With silicone button caps for comfortable input
  • 5× NeoPixels – Addressable RGB LEDs for visual feedback
  • Triple-Axis Accelerometer – Built-in motion sensing for gesture-based ML models
  • Light Sensor – Forward-facing ambient light sensor
  • Built-in Buzzer – Onboard mini speaker for audio feedback
  • Mono Class-D Speaker Driver – Drives 4–8 Ω speakers up to 2 W
  • LiPo Battery Port – JST connector with built-in charging
  • Feather-Compatible Headers – Two female header strips for plugging in FeatherWings
  • JST Ports – Connectors for NeoPixels, sensor input, and I2C

Also Available

Ideal For

  • TensorFlow Lite for Microcontrollers experimentation
  • On-device speech recognition and audio ML models
  • MakeCode Arcade and CircuitPython game development
  • Wearable conference badges with interactive features

Package Contents

  • 1× Adafruit EdgeBadge (fully assembled)
Note: TensorFlow Lite for Microcontrollers is actively evolving — expect frequent updates to code and processes. LiPo battery and speakers are sold separately.

The Adafruit EdgeBadge - TensorFlow Lite for Microcontrollers appears in the following collections:

SKU AF-4400
by Adafruit