Edge Impulse

💡

https://docs.edgeimpulse.com/docs/sony-spresense

Installing Edge Impulse CLI Tool

Install Python

Install Node

⚠️ IMPORTANT STEP IN NODE INSTALLATION ⚠️

Use this automatic installer script to grab all the tools [Approximately 3GB internet required]

Automatic script will start like this:

When tested this automatic script, it will stop at some point [This is background download of visual studio and C++ dependencies ~ 3GB download]

It might get stuck after download and do not install at its own!

You have to manually retry/install dependency with visual studio installer

It will look like this and will contain options of restart/retry option to install

If there is no option showing up, manually install C++ dependency.

Check python installation [output may vary according to version installed]


python --version
Python 3.10.0

Check node installation


node --version
v16.13.1

If you are getting errors, install again with PATH enabled.

Install CLI Tool:


npm install -g edge-impulse-cli --force

If you are getting any error, repeat all the steps!

Flashing firmware on your sony spresense

Connect sony spresense main board.

Download latest firmware and unzip it.

Open flash script. Example - For windows start flash_windows.bat

Select COM port of spresense board.

If you are facing Not ACK, Not NAK issue on command line, lower down baudrate 115200 using this command


python3 -u flash_writer.py -s -d -b 115200 -n edge_impulse_firmware.spk

Once flashed, it will get to 100%

To connect edgeimpulse platform, use edge-impulse-daemon in command line.

Enter your account details

Once connected, verify your device is connected.

Congrats 🎉

Installing Edge Impulse CLI Tool on Raspberry Pi

Installing CLI tool on 32bit OS is easy to install and do not require any extra steps:


curl -sL https://deb.nodesource.com/setup_14.x | sudo -E bash -
sudo apt-get install -y nodejs
node -v

npm config get prefix

// it will return usr/ or usr/local/

mkdir /.npm-global
npm config set prefix '/.npm-global'
echo 'export PATH=/.npm-global/bin:$PATH' >> /.profile

npm install -g edge-impulse-cli

Installing on 64bit OS is tricky as there is no pre-compiled binary of serialport for ARM64, so there is workaround:


curl -sL https://deb.nodesource.com/setup_14.x | sudo -E bash -
sudo apt-get install -y nodejs
node -v

npm config get prefix

// it will return usr/ or usr/local/

mkdir /.npm-global
npm config set prefix '/.npm-global'
echo 'export PATH=/.npm-global/bin:$PATH' >> /.profile

sudo apt install -y gcc g++ make build-essential nodejs sox gstreamer1.0-tools gstreamer1.0-plugins-good gstreamer1.0-plugins-base gstreamer1.0-plugins-base-apps

npm config set user root && sudo npm install edge-impulse-cli -g --unsafe-perm