P1010 - Camera Remote Shutter Project V2

Rev 2

This is an open-source camera remote shutter.

This was the second revision of the original project, but is now treated as a seperate project due to scope creep.

Currently working on Rev 2, which is smaller and fixed some issues with V1

Directory Structure

• CAD: FreeCAD enclosure and models
  • C1013: Bottom half of enclosure
  • C1014: Top half of enclosure
• Firmware: Firmware. Currently contains the main and misc test firmwares
• PCB: KiCAD PCB Files
  • E1011: PCB
• Release: Locked in "released" files, such as Schematics, Gerbers, etc
• SimTest: A simulation I did in KiCAD for the trans-impedance amplifier

Erratas

All hardware erratas and potential work-arounds are documented in ERRATA.md

Firmware

The firmware, located in Firmware/F1012_Main, is the firmware for this project.

The firwmare requires stm32-cmake by ObKo to be installed somewhere in your system, as well as stm32's G0's firmware package. The paths CMAKE_TOOLCHAIN_FILE and STM32_CUBE_G0_PATH must be set to the path of the installed dependencies above, respectivally. Eventually I plan on having them be easily configured, but need to figure out the best way of approaching that.

It can be build with cmake as follows in the firmware directory:

mkdir -p build; cd build
cmake ../
make

The firmware can then be flashed with the custom command

make flash

Setup

This project uses stm32-cmake in the build process, so you must set it up and change the CMAKE_TOOLCHAIN_FILE variable in each firmware's CMAKE file. You must also download STM32G0's MCU Package and set the STM32_CUBE_G0_PATH variable to the download location. Optionally if you have stm32cubeide installed, setup STM32_TOOLCHAIN_PATH in the CMAKE file, or remove it

Compiling

To build any of the test or main applications, go into that directory and run the following:

mkdir -p build
cd build
cmake ../
make

Programming

To upload the program, run the following stlink command

st-flash write <file_to_flash>.bin 0x08000000

Where the <file_to_flash> is the bin file inside of the build folder. 0x08000000 is the starting flash address for the STM32G0 family.

Tools/Generators

Some things in the firmware, such as font and image bitmap generation, where created from python scripts in Firmware/tools. See README.md in that directory for more info

Useful tools and resources

The following tools and I found useful when developing this firmware, and thus deserves a shoutout

• RGB656 Color Picker by rgbcolorpicker.com, which I found useful when picking colors for the RGB565 format I set the LCD to.

KiCAD 3D Models

The 3D models for some components in the directory PCB/3d_model/ are not included due to licensing reasons. You can grab the step files yourself and put it in that directory from the manufacturer. The models are

• CUI_DEVICES_SJ-2509N.step
• 615006138421_Download_STP_615006138421_rev1.stp
• c-1-1478035-0-b-3d.stp
• pec12r-4025f-n0024.stp

License

This project is licensed under GPLv3. See LICENSE.md for details.