2020-01-27 18:34:08 +00:00
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## ST7789 LCD
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https://learn.adafruit.com/adafruit-1-3-and-1-54-240-x-240-wide-angle-tft-lcd-displays/pinouts
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| Identifier | Description | Arduino pin | ATMega328p pin |
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|------------|----------------------------|-------------|----------------|
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| MOSI | SPI master out - slave in | 11 | 15 - PB3 |
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| SCLK | SPI clock | 13 | 17 - PB5 |
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| CS | Chip select | N/C | N/C |
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| RST | Reset | 9 | 13 - PB1 |
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| DC | SPI data / command select | 8 | 12 - PB0 |
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| BL | Backlight PWM | 7 | 11 - PD7 |
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## Polulu G2 motor driver
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https://www.pololu.com/product/2995
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| Identifier | Description | Arduino pin | ATMega328p pin |
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|------------|----------------------------|-------------|----------------|
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2020-02-01 19:54:05 +00:00
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| PWM | Motor PWM | 14 / A0 | 23 - PC0 |
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| DIR | Direction | 15 / A1 | 24 - PC1 |
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2020-01-27 18:34:08 +00:00
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| SLP | Sleep (active low) | 16 | 25 - PC2 |
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2020-01-31 09:36:36 +00:00
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| CS | Current sensing | 17 / A3 | 26 - PC3 |
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2020-01-27 18:34:08 +00:00
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CS has a voltage of 50mV + 20mV per A.
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## VL53L0X time-of-flight sensor
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https://learn.adafruit.com/adafruit-vl53l0x-micro-lidar-distance-sensor-breakout/pinouts
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| Identifier | Description | Arduino pin | ATMega328p pin |
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|------------|----------------------------|-------------|----------------|
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2020-01-28 15:52:18 +00:00
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| SCL | I²C clock | 18 / A4 | 28 - PC5 |
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| SDA | I²C data | 19 / A5 | 27 - PC4 |
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2020-01-27 18:34:08 +00:00
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## Buttons
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| Description | Arduino pin | ATMega328p pin |
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|-------------|-------------|----------------|
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| Up | 3 | 1 - PD3 |
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| Menu | 5 | 9 - PD5 |
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| Down | 6 | 10 - PD6 |
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