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Update the retro-ruler target to the latest version (#227)
* replacing the old retro-ruler-V1 by the new retro-ruler I also added a special input type in snes for devices with 12 buttons * enabled backlight control * Update config.h update config.h according to the new specification * snes: default to a special keymap when all keys are physically present
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‎components/retro-go/config.h‎

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#include "targets/mrgc-g32/config.h"
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#elif defined(RG_TARGET_RETRO_ESP32)
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#include "targets/retro-esp32/config.h"
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#elif defined(RG_TARGET_RETRO_RULER_V1)
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#include "targets/retro-ruler-V1/config.h"
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#elif defined(RG_TARGET_RETRO_RULER)
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#include "targets/retro-ruler/config.h"
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#elif defined(RG_TARGET_SDL2)
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#include "targets/sdl2/config.h"
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#elif defined(RG_TARGET_MRGC_GBM)

‎components/retro-go/targets/retro-ruler-V1/config.h‎

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‎components/retro-go/targets/retro-ruler-V1/docs/README.md‎

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‎components/retro-go/targets/retro-ruler-V1/docs/device.png‎

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‎components/retro-go/targets/retro-ruler/config.h‎

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/****************************************************************************
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* Target definition for Rapha-Tech's Retro-ruler, based on the ESP32-S3 *
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* Hardware info: https://github.com/rapha-tech/Retro-Ruler *
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* *
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****************************************************************************/
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#define RG_TARGET_NAME "RETRO-RULER"
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/****************************************************************************
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* Status LED *
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****************************************************************************/
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// #define RG_LED_DRIVER 1 // 1 = GPIO
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// #define RG_GPIO_LED GPIO_NUM_2
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// #define RG_GPIO_LED_INVERT // Uncomment if the LED is active LOW
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/****************************************************************************
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* I2C / GPIO Extender *
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****************************************************************************/
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// #define RG_I2C_GPIO_DRIVER 0 // 1 = AW9523, 2 = PCF9539, 3 = MCP23017, 4 = PCF8575, 5 = PCF8574
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// #define RG_I2C_GPIO_ADDR 0x00
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// #define RG_GPIO_I2C_SDA GPIO_NUM_15
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// #define RG_GPIO_I2C_SCL GPIO_NUM_4
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/****************************************************************************
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* Storage *
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****************************************************************************/
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#define RG_STORAGE_ROOT "/sd"
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#define RG_STORAGE_SDSPI_HOST SPI2_HOST
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#define RG_STORAGE_SDSPI_SPEED SDMMC_FREQ_DEFAULT
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#define RG_GPIO_SDSPI_MISO GPIO_NUM_13
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#define RG_GPIO_SDSPI_MOSI GPIO_NUM_11
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#define RG_GPIO_SDSPI_CLK GPIO_NUM_12
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#define RG_GPIO_SDSPI_CS GPIO_NUM_21
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// #define RG_STORAGE_SDMMC_HOST SDMMC_HOST_SLOT_1
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// #define RG_STORAGE_SDMMC_SPEED SDMMC_FREQ_DEFAULT
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// #define RG_GPIO_SDMMC_CMD GPIO_NUM_15
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// #define RG_GPIO_SDMMC_CLK GPIO_NUM_14
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// #define RG_GPIO_SDMMC_D0 GPIO_NUM_2
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// #define RG_GPIO_SDMMC_D1 GPIO_NUM_NC
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// #define RG_GPIO_SDMMC_D2 GPIO_NUM_NC
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// #define RG_GPIO_SDMMC_D3 GPIO_NUM_NC
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// #define RG_STORAGE_FLASH_PARTITION "vfs"
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/****************************************************************************
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* Audio *
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****************************************************************************/
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#define RG_AUDIO_USE_INT_DAC 0 // 0 = Disable, 1 = GPIO25, 2 = GPIO26, 3 = Both
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#define RG_AUDIO_USE_EXT_DAC 1 // 0 = Disable, 1 = Enable
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#define RG_AUDIO_USE_BUZZER_PIN 0 // See drivers/audio/buzzer.c for details
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#define RG_GPIO_SND_I2S_BCK GPIO_NUM_39
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#define RG_GPIO_SND_I2S_WS GPIO_NUM_40
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#define RG_GPIO_SND_I2S_DATA GPIO_NUM_38
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#define RG_GPIO_SND_AMP_ENABLE GPIO_NUM_41
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// #define RG_GPIO_SND_AMP_ENABLE_INVERT // Uncomment if the mute = HIGH
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/****************************************************************************
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* Video *
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****************************************************************************/
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#define RG_SCREEN_DRIVER 0 // 0 = ILI9341/ST7789
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#define RG_SCREEN_HOST SPI2_HOST
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#define RG_SCREEN_SPEED SPI_MASTER_FREQ_80M
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#define RG_SCREEN_BACKLIGHT 1
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#define RG_SCREEN_WIDTH 320
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#define RG_SCREEN_HEIGHT 240
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#define RG_SCREEN_ROTATE 0
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#define RG_SCREEN_VISIBLE_AREA {20, 0, 20, 0} // Left, Top, Right, Bottom
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#define RG_SCREEN_SAFE_AREA {20, 0, 20, 0} // Left, Top, Right, Bottom
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#define RG_SCREEN_INIT() \
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ILI9341_CMD(0xCF, 0x00, 0xc3, 0x30); \
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ILI9341_CMD(0xED, 0x64, 0x03, 0x12, 0x81); \
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ILI9341_CMD(0xE8, 0x85, 0x00, 0x78); \
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ILI9341_CMD(0xCB, 0x39, 0x2c, 0x00, 0x34, 0x02); \
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ILI9341_CMD(0xF7, 0x20); \
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ILI9341_CMD(0xEA, 0x00, 0x00); \
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ILI9341_CMD(0xC0, 0x1B); /* Power control //VRH[5:0] */ \
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ILI9341_CMD(0xC1, 0x12); /* Power control //SAP[2:0];BT[3:0] */ \
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ILI9341_CMD(0xC5, 0x32, 0x3C); /* VCM control */ \
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ILI9341_CMD(0xC7, 0x91); /* VCM control2 */ \
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ILI9341_CMD(0x36, (0x40 | 0x80 | 0x08)); /* Memory Access Control */ \
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ILI9341_CMD(0xB1, 0x00, 0x10); /* Frame Rate Control (1B=70, 1F=61, 10=119) */ \
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ILI9341_CMD(0xB6, 0x0A, 0xA2); /* Display Function Control */ \
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ILI9341_CMD(0xF6, 0x01, 0x30); \
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ILI9341_CMD(0xF2, 0x00); /* 3Gamma Function Disable */ \
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ILI9341_CMD(0x26, 0x01); /* Gamma curve selected */ \
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ILI9341_CMD(0xE0, 0xD0, 0x00, 0x02, 0x07, 0x0a, 0x28, 0x32, 0x44, 0x42, 0x06, 0x0e, 0x12, 0x14, 0x17); \
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ILI9341_CMD(0xE1, 0xD0, 0x00, 0x02, 0x07, 0x0a, 0x28, 0x31, 0x54, 0x47, 0x0E, 0x1C, 0x17, 0x1b, 0x1e);
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#define RG_SCREEN_DEINIT() \
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/* Nothing to do */
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#define RG_GPIO_LCD_MISO GPIO_NUM_13
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#define RG_GPIO_LCD_MOSI GPIO_NUM_11
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#define RG_GPIO_LCD_CLK GPIO_NUM_12
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#define RG_GPIO_LCD_CS GPIO_NUM_10
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#define RG_GPIO_LCD_DC GPIO_NUM_9
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#define RG_GPIO_LCD_BCKL GPIO_NUM_14
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// #define RG_GPIO_LCD_BCKL_INVERT // Uncomment if the LED is active LOW
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// #define RG_GPIO_LCD_RST GPIO_NUM_NC
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/****************************************************************************
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* Input *
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****************************************************************************/
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// Refer to rg_input.h to see all available RG_KEY_* and RG_GAMEPAD_*_MAP types
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#define RG_GAMEPAD_GPIO_MAP {\
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{RG_KEY_UP, .num = GPIO_NUM_18, .pullup = 1, .level = 0},\
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{RG_KEY_DOWN, .num = GPIO_NUM_16, .pullup = 1, .level = 0},\
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{RG_KEY_RIGHT, .num = GPIO_NUM_17, .pullup = 1, .level = 0},\
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{RG_KEY_LEFT, .num = GPIO_NUM_8, .pullup = 1, .level = 0},\
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{RG_KEY_SELECT, .num = GPIO_NUM_42, .pullup = 1, .level = 0},\
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{RG_KEY_START, .num = GPIO_NUM_1, .pullup = 1, .level = 0},\
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{RG_KEY_MENU, .num = GPIO_NUM_0, .pullup = 1, .level = 0},\
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{RG_KEY_A, .num = GPIO_NUM_5, .pullup = 1, .level = 0},\
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{RG_KEY_B, .num = GPIO_NUM_6, .pullup = 1, .level = 0},\
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{RG_KEY_X, .num = GPIO_NUM_7, .pullup = 1, .level = 0},\
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{RG_KEY_Y, .num = GPIO_NUM_15, .pullup = 1, .level = 0},\
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{RG_KEY_L, .num = GPIO_NUM_48, .pullup = 1, .level = 0},\
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{RG_KEY_R, .num = GPIO_NUM_2, .pullup = 1, .level = 0},\
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}
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/****************************************************************************
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* Battery *
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****************************************************************************/
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#define RG_BATTERY_DRIVER 1 // 1 = ADC, 2 = MRGC
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#define RG_BATTERY_ADC_UNIT ADC_UNIT_1
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#define RG_BATTERY_ADC_CHANNEL ADC_CHANNEL_2
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#define RG_BATTERY_CALC_PERCENT(raw) (((raw) * 2.f - 3500.f) / (4200.f - 3500.f) * 100.f)
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#define RG_BATTERY_CALC_VOLTAGE(raw) ((raw) * 2.f * 0.001f)
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/****************************************************************************
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* Updater *
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****************************************************************************/
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// #define RG_UPDATER_ENABLE 1
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// #define RG_UPDATER_APPLICATION RG_APP_FACTORY
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// #define RG_UPDATER_DOWNLOAD_LOCATION RG_STORAGE_ROOT "/odroid/firmware"
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/****************************************************************************
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* Miscellaneous *
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****************************************************************************/
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#define RG_RECOVERY_BTN RG_KEY_MENU // Keep this button pressed to open the recovery menu
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#define RG_CUSTOM_PLATFORM_INIT() \
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/* Arbitrary code executed very early during retro-go init */
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// See components/retro-go/config.h for more things you can define here!

‎components/retro-go/targets/retro-ruler/docs/README.md‎

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# RETRO-RULER
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- Status: completed
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- Ref: https://github.com/rapha-tech/Retro-Ruler
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This port developed for the Retro-Ruler, based on the ESP32-S3 microcontroller.
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# Hardware info
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- Espressif ESP32-S3-WROOM-1-N16R8 (16MB flash + 8MB PSRAM)
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- ST7789-based 1.69-inch IPS LCD with rounded corners
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- microSD card reader
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- 12 input buttons
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- NS4168 DAC with 0.7W speaker
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- battery charger
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- battery (250 mAh)
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- USB-C connector
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# Images
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![retro-ruler.jpg](retro-ruler.jpg)

‎components/retro-go/targets/retro-ruler/docs/retro-ruler.jpg‎

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‎components/retro-go/targets/retro-ruler-V1/env.py‎ renamed to ‎components/retro-go/targets/retro-ruler/env.py‎

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# For example override python variables or set environment variables with os.putenv
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# Espressif chip in the device
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IDF_TARGET = "esp32"
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IDF_TARGET = "esp32s3"
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# .fw file format, if supported by the device
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FW_FORMAT = "none"
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# # Default apps to build when none is specified (comment to build all)
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DEFAULT_APPS = "launcher retro-core prboom-go gwenesis"
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# Default apps to build when none is specified (comment to build all)
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# DEFAULT_APPS = "launcher prboom-go"

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