Juli
f238cfc9bf
BAT_ADC (GPIO4) sits between two 100k resistors on the switched supply rail, so it reads the cell on battery and ~4.4 V on USB; above 4.25 V is reported as USB power. On battery the caption shows a glyph + percentage from a LiPo OCV table; the menu shows voltage and source. Menu lists now wrap at both ends.
33 lines
1.3 KiB
C
33 lines
1.3 KiB
C
#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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// Pin map for the two LilyGO T-Embed variants, taken from LilyGO's own
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// examples/factory/pin_config.h (2022 board) and examples/utilities.h (CC1101).
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typedef enum { BOARD_TEMBED = 0, BOARD_TEMBED_CC1101 = 1 } board_variant_t;
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typedef struct {
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board_variant_t variant;
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const char *name;
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int pwr_en; // must be driven high or the board powers down on battery
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// 1.9" ST7789 170x320, SPI
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int lcd_mosi, lcd_miso, lcd_sclk, lcd_cs, lcd_dc, lcd_rst, lcd_bl;
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bool lcd_bgr; // colour order the panel wants (TFT_eSPI setups differ per variant)
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// rotary encoder + its push button (GPIO0), optional extra key
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int enc_a, enc_b, enc_btn, user_key;
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// LED ring: APA102 (SPI, clk+data) on the original, WS2812 (one wire) on the CC1101
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bool led_ws2812;
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int led_clk, led_data, led_count;
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// battery voltage divider (original board only; -1 = none)
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int bat_adc;
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// I2C, used only to tell the two boards apart
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int i2c_sda, i2c_scl;
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// chip selects sharing the LCD SPI bus on the CC1101 board; parked high
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int spi_other_cs[3];
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} board_t;
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extern const board_t *board;
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// Latches power, picks the variant (probe or Kconfig) and parks unused chip selects.
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void board_init(void);
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