18 lines
873 B
Markdown
18 lines
873 B
Markdown
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This is the firmware for a simple thermocromic selfie camera based on
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- A OV7670 camera module (without FIFO),
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- A STM32F103C8T6 microcontroller, and
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- A LTP1245 thermal printer module.
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Apart from that, only a level shifter for the thermal printer (which needs 5 V signals), a motor driver for its stepper, a pullup for its thermistor, and a MOSFET for turning all power off are needed.
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If an SD-card is connected, all photos are also stored there as 2-colour (dithered) BMP files.
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More details can be found [here](https://25120.org/post/inverse_thermal_camera/).
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## Licence
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The device header files in the `third_party` directory are provided by ARM Limited and ST Microelectronics and contain their own licence information. FatFs, also located in `third_party`, contains its own licence information as well. Everything else is ISC licenced.
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