HM01B0 Library for Pico

Capture monochrome images on your Raspberry Pi Pico with a Himax HM01B0 based camera module.

Learn more in the Raspberry Pi "Real-time monochrome camera input on Raspberry Pi Pico" guest blog post.

Hardware

• RP2040 board
  • Raspberry Pi Pico
  • Arducam HM01B0 Monochrome QVGA SPI Camera Module for Raspberry Pi Pico
• SparkFun Micromod
  • SparkFun MicroMod RP2040 Processor
  • SparkFun MicroMod Machine Learning Carrier Board
  • Himax CMOS Imaging Camera - HM01B0

Default Pinout

HM01B0	Raspberry Pi Pico / RP2040
VCC	3V3
SCL	GPIO5
SDA	GPIO4
VSYNC	GPIO6
HREF	GPIO7
PCLK	GPIO8
D0	GPIO9
RESET	-
MCLCK	-
GND	GND

GPIO pins are configurable in examples or API.

Examples

See examples folder.

Cloning

git clone https://github.com/ArmDeveloperEcosystem/hm01b0-library-for-pico.git 

Building

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

export PICO_SDK_PATH=/path/to/pico-sdk

3. Create build dir, run cmake and make:

mkdir build
cd build
cmake .. -DPICO_BOARD=pico
make

For SparkFun MicroMod RP2040 use: cmake .. -DPICO_BOARD=sparkfun_micromod

4. Copy example .uf2 to Pico when in BOOT mode.

License

MIT

Acknowledgements

The TinyUSB library is used in the usb_camera example.

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Disclaimer: This is not an official Arm product.