Edge Impulse Example: stand-alone inferencing (Raspberry Pi Pico)

This repository runs an exported impulse on the Raspberry Pi Pico / RP2040. See the documentation at Running your impulse locally. This repository is based off of the Arducam Pico4ML Magic Wand Example.

Requirements

Hardware

Raspberry Pi Pico.

Software

Edge Impulse CLI.
GNU ARM Embedded Toolchain.
CMake.

Rasperry Pi Pico SDK:

git clone -b master https://github.com/raspberrypi/pico-sdk.git
cd pico-sdk
git submodule update --init
export PATH="<Path to Pico SDK>:$PATH"

Building the application

Get the Edge Impulse SDK

Unzip the deployed C++ library from your Edge Impulse project and copy to the source directory of this repository:

example-standalone-inferencing-pico/
├─ source
├─- model-parameters
├─- edge-impulse-sdk
├─- tflite-model
├─- CMakeLists.txt
├─ .gitignore
├─ LICENSE
├─ README.md
└─ pico_sdk_import.cmake

Compile

Create the build folder:
```
mkdir build && cd build
```
Compile:
```
cmake ..
clear && make -j4
```

Flash

Connect the Raspberry Pi Pico to your computer using a micro-USB cable while pressing and holding the BOOTSEL button.

Drag and drop the build/pico_standalone.uf2 file to the RPI-RP2 disk in your file explorer.

Serial connection

Use screen, minicom or Serial monitor in Arduino IDE to set up a serial connection over USB. The following UART settings are used: 115200 baud, 8N1.

EveraertJan/inference-pico