ML Image Classification Example for Pico W

Report the occupany status of an EV Charger with a Raspberry Pi Pico W, Himax HM01B0 based camera module board, and the Slack API.

Requires a Slack Bot token.

Hardware

• Raspberry Pi Pico
• Arducam HM01B0 Monochrome QVGA SPI Camera Module for Raspberry Pi Pico

Default Pinout

HM01B0	Raspberry Pi Pico W
VCC	3V3
SCL	GPIO5
SDA	GPIO4
VSYNC	GPIO6
HREF	GPIO7
PCLK	GPIO8
D0	GPIO9
GND	GND

Software

Cloning

git clone --recurse-submodules https://github.com/ArmDeveloperEcosystem/ml-image-classification-example-for-pico-w.git

Building

1. Set up the Pico C/C++ SDK
2. Set PICO_SDK_PATH

export PICO_SDK_PATH=/path/to/pico-sdk

3. Change directories:

ml-image-classification-example-for-pico-w

4. Create build dir, run cmake and make:

mkdir build

cd build

cmake .. \
    -DPICO_BOARD=pico_w \
    -DWIFI_SSID="<WIFI SSID>" \
    -DWIFI_PASSWORD="<Wi-Fi Password>" \
    -DSLACK_BOT_TOKEN="<Slack Bot Token>" \
    -DSLACK_CHANNEL="<Slack Channel>"


make

5. Copy example ml-image-classification-example-for-pico-w.uf2 to Pico W when in BOOT mode.

License

MIT

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Disclaimer: This is not an official Arm product.