40 lines
1.9 KiB
Markdown
40 lines
1.9 KiB
Markdown
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# orbweaver
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This firmware is for a Razer Orbweaver Chroma keypad, modded to replace the stock MCU
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with an Elite Pi RP2040 microcontroller. Mod instructions can be found on [geekhack](https://geekhack.org/index.php?topic=119396.0).
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The firmware controls a 6x5 key matrix (4x5 keypad + 6 additional keys
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on the thumb pad and up to 4 additional keys added by user). It also controls a
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IS31FL3731 RGB Matrix controller (on the Chroma model) via I2C interface. This requires
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a single I2C Driver with 20 common anode RGB LEDs. I found that the I2C clock speed must
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be slowed down to 100 kHz for the IS31 chip to keep up (the default for RP2040 seems to
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be 400 kHz unless specified otherwise).
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The default key map (layer 0) is a generic layer based on the original Razer defaults.
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You can change or add layers as needed, and change static colors in keymap.c
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Many thanks to bomtarnes, Drashna, Dasky, sigprof, and casuanoob for helpful discussions
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and coding suggestions and snippets.
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* Keyboard Maintainer: [a_marmot](https://github.com/a-marmot)
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* Hardware Supported: RP2040 + IS31FL3731
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* Hardware Availability: [https://geekhack.org/index.php?topic=119396.0](https://geekhack.org/index.php?topic=119396.0)
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Make example for this keyboard (after setting up your build environment):
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make handwired/orbweaver:default
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Flashing example for this keyboard:
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make handwired/orbweaver:default:flash
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See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
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## Bootloader
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Enter the bootloader in 2 ways:
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* Press and hold the upper left hand key on the main keyboard while you plug in the USB.
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* Press and release both reset buttons on the top of the RP2040 inside the modded unit.
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