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Add support for esp32 board "Heltec wifikit 32 v2" #8713

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Add support for esp32 board "Heltec wifikit 32 v2" #8713

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bf5eaa6
Initial support for Heltec WifiKit 32 v2
szsoftware Dec 9, 2023
9549949
Fix Console output.
szsoftware Dec 11, 2023
ab02ecb
Fix Oled init.
szsoftware Dec 12, 2023
03a27be
Prepare next pull request, finished tasks.
szsoftware Dec 12, 2023
b089c96
Merge branch 'adafruit:main' into heltec-wifikit-32-v2
szsoftware Dec 12, 2023
f3dd7b8
Revert merge of main branch. Minor changes.
szsoftware Dec 12, 2023
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111 changes: 111 additions & 0 deletions ports/espressif/boards/heltec_esp32_wifikit_32_v2/board.c
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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/

#include "supervisor/board.h"
#include "mpconfigboard.h"
#include "shared-bindings/microcontroller/Pin.h"
#include "shared-bindings/board/__init__.h"
#include "shared-bindings/i2cdisplaybus/I2CDisplayBus.h"
#include "shared-module/displayio/__init__.h"
#include "shared-module/displayio/mipi_constants.h"
#include "shared-bindings/busio/I2C.h"
#include "supervisor/shared/board.h"
#include "shared-bindings/board/__init__.h"

uint8_t display_init_sequence[] = { // SSD1306
0xAE, 0, // DISPLAY_OFF
0x20, 1, 0x00, // Set memory addressing to horizontal mode.
0x81, 1, 0xcf, // set contrast control
0xA1, 0, // Column 127 is segment 0
0xA6, 0, // Normal display
0xc8, 0, // Normal display
0xA8, 1, 0x3F, // Mux ratio is height-1
0xd5, 1, 0x80, // Set divide ratio
0xd9, 1, 0xf1, // Set pre-charge period
0xda, 1, 0x12, // 0x12 cause 64 height, but 0x02 if it's 32 height
0xdb, 1, 0x40, // Set vcom configuration
0x8d, 1, 0x14, // Enable charge pump
0xAF, 0, // DISPLAY_ON
};

digitalio_digitalinout_obj_t display_on;

static void display_init(void) {
// Need to bring GPIO4 high or the screen doesn't get power : TODO: This is GPIO21 (OLED_RST) on Heltec Lora V3 on ESP32-S3, right?
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Could you address this to-do?

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Done.

// & the board can't see the i2c bus at all.
common_hal_digitalio_digitalinout_construct(&display_on, &pin_GPIO16);
common_hal_digitalio_digitalinout_switch_to_output(&display_on, true, DRIVE_MODE_PUSH_PULL);
common_hal_digitalio_digitalinout_never_reset(&display_on);
busio_i2c_obj_t *i2c = common_hal_board_create_i2c(0);
i2cdisplaybus_i2cdisplaybus_obj_t *bus = &allocate_display_bus()->i2cdisplay_bus;
bus->base.type = &i2cdisplaybus_i2cdisplaybus_type;

common_hal_i2cdisplaybus_i2cdisplaybus_construct(
bus,
i2c,
0x3c,
NULL
);

busdisplay_busdisplay_obj_t *display = &allocate_display()->display;
display->base.type = &busdisplay_busdisplay_type;
common_hal_busdisplay_busdisplay_construct(display,
bus,
128, // Width
64, // Height
0, // column start
0, // row start
0, // rotation
1, // Color depth
true, // grayscale
false, // pixels in byte share row. Only used with depth < 8
1, // bytes per cell. Only valid for depths < 8
false, // reverse_pixels_in_byte. Only valid for depths < 8
true, // reverse_pixels_in_word
0x21, // Set column command
0x22, // Set row command
44, // Write ram command
display_init_sequence,
sizeof(display_init_sequence),
NULL, // no backlight pin
0x81, // brightness command
1.0f, // brightness
true, // single_byte_bounds
true, // data as commands
true, // auto_refresh
60, // native_frames_per_second
true, // backlight_on_high
false, // SH1107_addressing
0); // backlight pwm frequency


}

void board_init(void) {
display_init();
}

// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.
44 changes: 44 additions & 0 deletions ports/espressif/boards/heltec_esp32_wifikit_32_v2/mpconfigboard.h
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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Scott Shawcroft for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/

// Micropython setup

#define MICROPY_HW_BOARD_NAME "Heltec ESP32-WIFIKIT-32-V2"
#define MICROPY_HW_MCU_NAME "ESP32"

#define MICROPY_HW_LED_STATUS (&pin_GPIO25) // Pulled from schematic

// I2C
#define CIRCUITPY_BOARD_I2C (1)
#define CIRCUITPY_BOARD_I2C_PIN {{.scl = &pin_GPIO15, .sda = &pin_GPIO4}}

// UART definition for UART connected to the CP210x
#define DEFAULT_UART_BUS_RX (&pin_GPIO3)
#define DEFAULT_UART_BUS_TX (&pin_GPIO1)

// Serial over UART
#define CIRCUITPY_CONSOLE_UART_RX DEFAULT_UART_BUS_RX
#define CIRCUITPY_CONSOLE_UART_TX DEFAULT_UART_BUS_TX
47 changes: 47 additions & 0 deletions ports/espressif/boards/heltec_esp32_wifikit_32_v2/mpconfigboard.mk
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# Product URL: disappeared/discontinued
# Datasheet: https://resource.heltec.cn/download/WiFi_Kit_32/WiFi%20Kit32.pdf
# There is apparently a typo with TX/RX (and other) GPIO descriptions
# in the Pin Description table: It should be GPIO1 / GPIO3 and all above 39 seem not to be available on esp32
#
# Schematic: https://resource.heltec.cn/download/WiFi_Kit_32/WIFI_Kit_32_Schematic_diagram_V2.pdf
# https://resource.heltec.cn/download/WiFi_Kit_32/WIFI_Kit_32_Schematic_diagram_V2.1.PDF
# (same as V2, but V2.1 is better readable)
# Pinout: https://resource.heltec.cn/download/WiFi_Kit_32/WIFI_Kit_32_pinoutDiagram_V2.pdf
# https://resource.heltec.cn/download/WiFi_Kit_32/WIFI_Kit_32_pinoutDiagram_V2.1.pdf
# (exactly same as V2 [md5sum of pdf is 9ee18bb5abe0a41fe98825cc756e8e3e])

CIRCUITPY_CREATOR_ID = 0x148E173C
# TODO: What value should it be?
CIRCUITPY_CREATION_ID = 0x00000000
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You can go here: https://github.com/creationid/creators/blob/main/creations/heltec.md and propose a PR with a new creation ID. It doesn't matter much what it is - if there's a stock number you could use that.

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Done.


USB_PRODUCT = "ESP32-WIFIKIT-32-V2"
USB_MANUFACTURER = "Heltec"

IDF_TARGET = esp32

DEBUG = 0
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I am not sure if this affects the global CP build settings, but if it does, it should absolutely not be done.

ESPTOOL_FLAGS = --before=default_reset --after=hard_reset --baud 921600

# This board doesn't have USB by default, it
# instead uses a CP2102 USB-to-Serial chip
CIRCUITPY_USB = 0
CIRCUITPY_ESP_USB_SERIAL_JTAG = 0
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# Todo: qio or dio?
CIRCUITPY_ESP_FLASH_MODE = dio
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You should be able to tell this from the module or the schematic.

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It has no influence to flashing process nor what debug output at startup reports: It's always mentioned "dio".

I set it to dio for now. Done.

# esp-idf-config/sdkconfig-flash-26m.defaults does not exist in main branch
CIRCUITPY_ESP_FLASH_FREQ = 26m
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Is this actually the flash frequency, or just the crystal frequency? You can choose the flash frequency.

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Honestly, I have no clue. This is what the flashing tool reports and I don't know where else to get the info from:

esptool.py v4.7.dev3
Serial port /dev/ttyUSB0
Connecting....
Chip is ESP32-D0WDQ6 (revision v1.0)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
Crystal is 26MHz
MAC: 24:0a:c4:5c:11:d8
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Configuring flash size...
Flash will be erased from 0x00000000 to 0x00155fff...
Compressed 1399360 bytes to 952771...
Wrote 1399360 bytes (952771 compressed) at 0x00000000 in 19.5 seconds (effective 575.6 kbit/s)...
Hash of data verified.

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Most espressif boards that I know of run their flash chips at 40m or 80m.
You can try different settings and see what works.
Unless it's using a unique or absolutely ancient chip, it will probably work at 40m.


# it's 64mBit = 8MB, right? The datasheet says 64mBit = 4MB
CIRCUITPY_ESP_FLASH_SIZE = 8MB

CIRCUITPY_ESPCAMERA = 0

CIRCUITPY_DISPLAYIO = 1
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I don't think this should be added.
Displayio is enabled by default.

The compile should fail if the user tries to disable displayio, not ignore the settings and succeed.


# This has something to do with XTAL Config support?:
CIRCUITPY_CANIO = 0

FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_Display_Shapes
FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_Display_Text
FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_RFM9x
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154 changes: 154 additions & 0 deletions ports/espressif/boards/heltec_esp32_wifikit_32_v2/pins.c
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#include "shared-bindings/board/__init__.h"

#include "shared-module/displayio/__init__.h"

/**
Todo: There are copy/paste typos in the Datasheet:
https://resource.heltec.cn/download/WiFi_Kit_32/WiFi%20Kit32.pdf
There is apparently a typo with TX/RX (and other) GPIO descriptions
in the Pin Description table: It should be GPIO1 / GPIO3 and all above 39 seem not to be available on esp32

esp pin definitions: ports/espressif/peripherals/esp32/pins.c
*/

STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS

{ MP_ROM_QSTR(MP_QSTR_IO0), MP_ROM_PTR(&pin_GPIO0) },
{ MP_ROM_QSTR(MP_QSTR_IO1), MP_ROM_PTR(&pin_GPIO1) },
{ MP_ROM_QSTR(MP_QSTR_IO2), MP_ROM_PTR(&pin_GPIO2) },
{ MP_ROM_QSTR(MP_QSTR_IO3), MP_ROM_PTR(&pin_GPIO3) },
{ MP_ROM_QSTR(MP_QSTR_IO4), MP_ROM_PTR(&pin_GPIO4) },
{ MP_ROM_QSTR(MP_QSTR_IO5), MP_ROM_PTR(&pin_GPIO5) },
{ MP_ROM_QSTR(MP_QSTR_IO6), MP_ROM_PTR(&pin_GPIO6) },
{ MP_ROM_QSTR(MP_QSTR_IO7), MP_ROM_PTR(&pin_GPIO7) },
{ MP_ROM_QSTR(MP_QSTR_IO8), MP_ROM_PTR(&pin_GPIO8) },
{ MP_ROM_QSTR(MP_QSTR_IO9), MP_ROM_PTR(&pin_GPIO9) },
{ MP_ROM_QSTR(MP_QSTR_IO10), MP_ROM_PTR(&pin_GPIO10) },
{ MP_ROM_QSTR(MP_QSTR_IO11), MP_ROM_PTR(&pin_GPIO11) },
{ MP_ROM_QSTR(MP_QSTR_IO12), MP_ROM_PTR(&pin_GPIO12) },
{ MP_ROM_QSTR(MP_QSTR_IO13), MP_ROM_PTR(&pin_GPIO13) },
{ MP_ROM_QSTR(MP_QSTR_IO14), MP_ROM_PTR(&pin_GPIO14) },
{ MP_ROM_QSTR(MP_QSTR_IO15), MP_ROM_PTR(&pin_GPIO15) },
{ MP_ROM_QSTR(MP_QSTR_IO16), MP_ROM_PTR(&pin_GPIO16) },
{ MP_ROM_QSTR(MP_QSTR_IO17), MP_ROM_PTR(&pin_GPIO17) },
{ MP_ROM_QSTR(MP_QSTR_IO18), MP_ROM_PTR(&pin_GPIO18) },
{ MP_ROM_QSTR(MP_QSTR_IO19), MP_ROM_PTR(&pin_GPIO19) },
{ MP_ROM_QSTR(MP_QSTR_IO20), MP_ROM_PTR(&pin_GPIO20) },
{ MP_ROM_QSTR(MP_QSTR_IO21), MP_ROM_PTR(&pin_GPIO21) },
{ MP_ROM_QSTR(MP_QSTR_IO22), MP_ROM_PTR(&pin_GPIO22) },
{ MP_ROM_QSTR(MP_QSTR_IO23), MP_ROM_PTR(&pin_GPIO23) },
/* Not available on esp32:
{ MP_ROM_QSTR(MP_QSTR_IO24), MP_ROM_PTR(&pin_GPIO24) },
*/
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Take out the commented-out pins.

Also only include pins that are accessible. If some are not connected at all to any accessible pads, take them away also.

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Done.

{ MP_ROM_QSTR(MP_QSTR_IO25), MP_ROM_PTR(&pin_GPIO25) },
{ MP_ROM_QSTR(MP_QSTR_IO26), MP_ROM_PTR(&pin_GPIO26) },
{ MP_ROM_QSTR(MP_QSTR_IO27), MP_ROM_PTR(&pin_GPIO27) },
/* Not available on esp32:
{ MP_ROM_QSTR(MP_QSTR_IO28), MP_ROM_PTR(&pin_GPIO28) },
{ MP_ROM_QSTR(MP_QSTR_IO29), MP_ROM_PTR(&pin_GPIO29) },
{ MP_ROM_QSTR(MP_QSTR_IO30), MP_ROM_PTR(&pin_GPIO30) },
{ MP_ROM_QSTR(MP_QSTR_IO31), MP_ROM_PTR(&pin_GPIO31) },
*/
{ MP_ROM_QSTR(MP_QSTR_IO32), MP_ROM_PTR(&pin_GPIO32) },
{ MP_ROM_QSTR(MP_QSTR_IO33), MP_ROM_PTR(&pin_GPIO33) },
{ MP_ROM_QSTR(MP_QSTR_IO34), MP_ROM_PTR(&pin_GPIO34) },
{ MP_ROM_QSTR(MP_QSTR_IO35), MP_ROM_PTR(&pin_GPIO35) },
{ MP_ROM_QSTR(MP_QSTR_IO36), MP_ROM_PTR(&pin_GPIO36) },
{ MP_ROM_QSTR(MP_QSTR_IO37), MP_ROM_PTR(&pin_GPIO37) },
{ MP_ROM_QSTR(MP_QSTR_IO38), MP_ROM_PTR(&pin_GPIO38) },
{ MP_ROM_QSTR(MP_QSTR_IO39), MP_ROM_PTR(&pin_GPIO39) },

{ MP_ROM_QSTR(MP_QSTR_GPIO0), MP_ROM_PTR(&pin_GPIO0) },
{ MP_ROM_QSTR(MP_QSTR_GPIO1), MP_ROM_PTR(&pin_GPIO1) },
{ MP_ROM_QSTR(MP_QSTR_GPIO2), MP_ROM_PTR(&pin_GPIO2) },
{ MP_ROM_QSTR(MP_QSTR_GPIO3), MP_ROM_PTR(&pin_GPIO3) },
{ MP_ROM_QSTR(MP_QSTR_GPIO4), MP_ROM_PTR(&pin_GPIO4) },
{ MP_ROM_QSTR(MP_QSTR_GPIO5), MP_ROM_PTR(&pin_GPIO5) },
{ MP_ROM_QSTR(MP_QSTR_GPIO6), MP_ROM_PTR(&pin_GPIO6) },
{ MP_ROM_QSTR(MP_QSTR_GPIO7), MP_ROM_PTR(&pin_GPIO7) },
{ MP_ROM_QSTR(MP_QSTR_GPIO8), MP_ROM_PTR(&pin_GPIO8) },
{ MP_ROM_QSTR(MP_QSTR_GPIO9), MP_ROM_PTR(&pin_GPIO9) },
{ MP_ROM_QSTR(MP_QSTR_GPIO10), MP_ROM_PTR(&pin_GPIO10) },
{ MP_ROM_QSTR(MP_QSTR_GPIO11), MP_ROM_PTR(&pin_GPIO11) },
{ MP_ROM_QSTR(MP_QSTR_GPIO12), MP_ROM_PTR(&pin_GPIO12) },
{ MP_ROM_QSTR(MP_QSTR_GPIO13), MP_ROM_PTR(&pin_GPIO13) },
{ MP_ROM_QSTR(MP_QSTR_GPIO14), MP_ROM_PTR(&pin_GPIO14) },
{ MP_ROM_QSTR(MP_QSTR_GPIO15), MP_ROM_PTR(&pin_GPIO15) },
{ MP_ROM_QSTR(MP_QSTR_GPIO16), MP_ROM_PTR(&pin_GPIO16) },
{ MP_ROM_QSTR(MP_QSTR_GPIO17), MP_ROM_PTR(&pin_GPIO17) },
{ MP_ROM_QSTR(MP_QSTR_GPIO18), MP_ROM_PTR(&pin_GPIO18) },
{ MP_ROM_QSTR(MP_QSTR_GPIO19), MP_ROM_PTR(&pin_GPIO19) },
{ MP_ROM_QSTR(MP_QSTR_GPIO20), MP_ROM_PTR(&pin_GPIO20) },
{ MP_ROM_QSTR(MP_QSTR_GPIO21), MP_ROM_PTR(&pin_GPIO21) },
{ MP_ROM_QSTR(MP_QSTR_GPIO22), MP_ROM_PTR(&pin_GPIO22) },
{ MP_ROM_QSTR(MP_QSTR_GPIO23), MP_ROM_PTR(&pin_GPIO23) },
/*
{ MP_ROM_QSTR(MP_QSTR_GPIO24), MP_ROM_PTR(&pin_GPIO24) },
*/
{ MP_ROM_QSTR(MP_QSTR_GPIO25), MP_ROM_PTR(&pin_GPIO25) },
{ MP_ROM_QSTR(MP_QSTR_GPIO26), MP_ROM_PTR(&pin_GPIO26) },
{ MP_ROM_QSTR(MP_QSTR_GPIO27), MP_ROM_PTR(&pin_GPIO27) },
/*
{ MP_ROM_QSTR(MP_QSTR_GPIO28), MP_ROM_PTR(&pin_GPIO28) },
{ MP_ROM_QSTR(MP_QSTR_GPIO29), MP_ROM_PTR(&pin_GPIO29) },
{ MP_ROM_QSTR(MP_QSTR_GPIO30), MP_ROM_PTR(&pin_GPIO30) },
{ MP_ROM_QSTR(MP_QSTR_GPIO31), MP_ROM_PTR(&pin_GPIO31) },
*/
{ MP_ROM_QSTR(MP_QSTR_GPIO32), MP_ROM_PTR(&pin_GPIO32) },
{ MP_ROM_QSTR(MP_QSTR_GPIO33), MP_ROM_PTR(&pin_GPIO33) },
{ MP_ROM_QSTR(MP_QSTR_GPIO34), MP_ROM_PTR(&pin_GPIO34) },
{ MP_ROM_QSTR(MP_QSTR_GPIO35), MP_ROM_PTR(&pin_GPIO35) },
{ MP_ROM_QSTR(MP_QSTR_GPIO36), MP_ROM_PTR(&pin_GPIO36) },
{ MP_ROM_QSTR(MP_QSTR_GPIO37), MP_ROM_PTR(&pin_GPIO37) },
{ MP_ROM_QSTR(MP_QSTR_GPIO38), MP_ROM_PTR(&pin_GPIO38) },
{ MP_ROM_QSTR(MP_QSTR_GPIO39), MP_ROM_PTR(&pin_GPIO39) },

/* Todo: check and confirm */
{ MP_ROM_QSTR(MP_QSTR_BAT_ADC), MP_ROM_PTR(&pin_GPIO1) },
{ MP_ROM_QSTR(MP_QSTR_USER_BUTTON), MP_ROM_PTR(&pin_GPIO0) },

{ MP_ROM_QSTR(MP_QSTR_TOUCH0), MP_ROM_PTR(&pin_GPIO4) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH1), MP_ROM_PTR(&pin_GPIO0) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH2), MP_ROM_PTR(&pin_GPIO2) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH3), MP_ROM_PTR(&pin_GPIO15) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH4), MP_ROM_PTR(&pin_GPIO13) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH5), MP_ROM_PTR(&pin_GPIO12) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH6), MP_ROM_PTR(&pin_GPIO14) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH7), MP_ROM_PTR(&pin_GPIO27) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH8), MP_ROM_PTR(&pin_GPIO33) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH9), MP_ROM_PTR(&pin_GPIO2) },

/** Todo: ADC1 + ADC2
{ MP_ROM_QSTR(MP_QSTR_ADC2_CH9A), MP_ROM_PTR(&pin_GPIO19) },
{ MP_ROM_QSTR(MP_QSTR_ADC1_CH9B), MP_ROM_PTR(&pin_GPIO20) },
*/

{ MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_GPIO25) },

// UART that's connected to CP210x over USB
{ MP_OBJ_NEW_QSTR(MP_QSTR_DEBUG_TX), MP_ROM_PTR(&pin_GPIO1) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_DEBUG_RX), MP_ROM_PTR(&pin_GPIO3) },

{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },

// LORA SPI, Reset, and More
/** Todo: Adapt for the Lora Version of the WifiKit 32 V2 board
{ MP_ROM_QSTR(MP_QSTR_LORA_NSS), MP_ROM_PTR(&pin_GPIO8) },
{ MP_ROM_QSTR(MP_QSTR_LORA_SCK), MP_ROM_PTR(&pin_GPIO9) },
{ MP_ROM_QSTR(MP_QSTR_LORA_MOSI), MP_ROM_PTR(&pin_GPIO10) },
{ MP_ROM_QSTR(MP_QSTR_LORA_MISO), MP_ROM_PTR(&pin_GPIO11) },
{ MP_ROM_QSTR(MP_QSTR_LORA_RST), MP_ROM_PTR(&pin_GPIO12) },
{ MP_ROM_QSTR(MP_QSTR_LORA_BUSY), MP_ROM_PTR(&pin_GPIO13) },
*/
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Remove from this board.

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Done.


// OLED I2C & Reset
{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },

{ MP_ROM_QSTR(MP_QSTR_OLED_RST), MP_ROM_PTR(&pin_GPIO16) },
{ MP_ROM_QSTR(MP_QSTR_OLED_SDA), MP_ROM_PTR(&pin_GPIO4) },
{ MP_ROM_QSTR(MP_QSTR_OLED_SCL), MP_ROM_PTR(&pin_GPIO15) },

{ MP_ROM_QSTR(MP_QSTR_DISPLAY), MP_ROM_PTR(&displays[0].display) },
};
MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
27 changes: 27 additions & 0 deletions ports/espressif/boards/heltec_esp32_wifikit_32_v2/sdkconfig
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#
# Espressif IoT Development Framework Configuration
#
#
# Component config
#
#
# LWIP
#
CONFIG_ESP_PHY_ENABLE_USB=n
CONFIG_LWIP_LOCAL_HOSTNAME="HELTEC-ESP32-V2"
# end of LWIP

CONFIG_XTAL_FREQ_26=y
CONFIG_XTAL_FREQ=26

CONFIG_ESP_CONSOLE_UART_CUSTOM=y
CONFIG_ESP_CONSOLE_UART=y
CONFIG_ESP_CONSOLE_UART_CUSTOM_NUM_1=y
CONFIG_ESP_CONSOLE_UART_NUM=1
CONFIG_ESP_CONSOLE_UART_TX_GPIO=1
CONFIG_ESP_CONSOLE_UART_RX_GPIO=3
CONFIG_ESP_CONSOLE_UART_BAUDRATE=115200

# end of Component config

# end of Espressif IoT Development Framework Configuration