Mortdecai
31 lines
1.0 KiB
Markdown
31 lines
1.0 KiB
Markdown
# googly
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Standalone desk-pet face for Arduino Mega 2560 + 3.5" UNO-form 8-bit ILI9486
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touch shield (MCUFRIEND). See IDEA.md for the concept, DECISIONS.md for
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settled choices.
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## Build / flash
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```bash
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arduino-cli compile -b arduino:avr:mega googly
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arduino-cli upload -b arduino:avr:mega -p /dev/ttyACM0 googly
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```
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Libraries: MCUFRIEND_kbv, Adafruit GFX, Adafruit TouchScreen (all in
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`~/Arduino/libraries`). No SD, no soft-SPI needed here.
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## Hardware notes
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- Display ID 0x9486, 480x320 in rotation 1 (landscape).
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- Touch is resistive, shares LCD pins (XP=6, XM=A2, YP=A1, YM=7). After every
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`ts.getPoint()` the code restores A1/A2 to OUTPUT — do not remove that.
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- Touch is used pressure-only (tap/hold), never calibrated x/y.
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- Full-screen redraws are too slow for animation; only eye/mouth/blush regions
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are redrawn. Keep it that way.
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- Serial 115200 prints state transitions and mood for debugging.
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## Tuning
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All behavior knobs (timings, mood rates, touch pressure window) are constants
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at the top of `googly/googly.ino`.
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