Initial work for Heltec Vision Master 213 (#4286)

* Fix for serial monitoring and I2C for Vision Master e213 (#4280)

* Fix for serial monitoring and I2C

The board did not allow serial monitoring while on boot mode, i was able to fix this by adding a board variant. I also corrected the i2c pins. I was able to test it with a cardkb

* oops

I delete some code by mistake, all back now

* Made some adjustments

* Minimize the diff

---------

Co-authored-by: Todd Herbert <herbert.todd@gmail.com>

* Don't redefine board identifier
Suppresses compiler warnings

* Detect Vision Master 213 with PIO serial monitor

* Use outermost button as user-button
Less chance of accidentally hitting reset

* Use 1200bps touch (213)
Allows upload without manually entering bootloader

---------

Co-authored-by: HarukiToreda <116696711+HarukiToreda@users.noreply.github.com>

boards/heltec_vision_master_e213.json

@@ -0,0 +1,42 @@
+{
+  "build": {
+    "arduino": {
+      "ldscript": "esp32s3_out.ld",
+      "partitions": "default_8MB.csv"
+    },
+    "core": "esp32",
+    "extra_flags": [
+      "-DBOARD_HAS_PSRAM",
+      "-DARDUINO_USB_CDC_ON_BOOT=1",
+      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_RUNNING_CORE=1",
+      "-DARDUINO_EVENT_RUNNING_CORE=1"
+    ],
+    "f_cpu": "240000000L",
+    "f_flash": "80000000L",
+    "flash_mode": "qio",
+    "hwids": [
+      ["0x303A", "0x1001"],
+      ["0x303A", "0x0002"]
+    ],
+    "mcu": "esp32s3",
+    "variant": "heltec_vision_master_e213"
+  },
+  "connectivity": ["wifi", "bluetooth", "lora"],
+  "debug": {
+    "openocd_target": "esp32s3.cfg"
+  },
+  "frameworks": ["arduino", "espidf"],
+  "name": "Heltec Vision Master E213",
+  "upload": {
+    "flash_size": "8MB",
+    "maximum_ram_size": 327680,
+    "maximum_size": 8388608,
+    "use_1200bps_touch": true,
+    "wait_for_upload_port": true,
+    "require_upload_port": true,
+    "speed": 921600
+  },
+  "url": "https://heltec.org/project/vision-master-e213/",
+  "vendor": "Heltec"
+}

variants/heltec_vision_master_e213/pins_arduino.h

@@ -3,8 +3,6 @@
 
 #include <stdint.h>
 
-#define HELTEC_VISION_MASTER_E213 true
-
 static const uint8_t LED_BUILTIN = 35;
 #define BUILTIN_LED LED_BUILTIN // backward compatibility
 #define LED_BUILTIN LED_BUILTIN
@@ -12,8 +10,8 @@ static const uint8_t LED_BUILTIN = 35;
 static const uint8_t TX = 43;
 static const uint8_t RX = 44;
 
-static const uint8_t SDA = 41;
+static const uint8_t SDA = 39;
-static const uint8_t SCL = 42;
+static const uint8_t SCL = 38;
 
 static const uint8_t SS = 8;
 static const uint8_t MOSI = 10;

variants/heltec_vision_master_e213/platformio.ini

@@ -1,6 +1,6 @@
 [env:heltec-vision-master-e213]
 extends = esp32s3_base
-board = heltec_wifi_lora_32_V3
+board = heltec_vision_master_e213
 build_flags = 
   ${esp32s3_base.build_flags} 
   -Ivariants/heltec_vision_master_e213 

variants/heltec_vision_master_e213/variant.h

@@ -27,7 +27,7 @@
 
 #define VEXT_ENABLE 18 // powers the oled display and the lora antenna boost
 #define VEXT_ON_VALUE 1
-#define BUTTON_PIN 21
+#define BUTTON_PIN 0
 
 #define ADC_CTRL 46
 #define ADC_CTRL_ENABLED HIGH

variants/heltec_vision_master_e290/variant.h

@@ -27,7 +27,7 @@
 
 #define VEXT_ENABLE 18 // powers the e-ink display
 #define VEXT_ON_VALUE 1
-#define BUTTON_PIN 21
+#define BUTTON_PIN 0
 
 #define ADC_CTRL 46
 #define ADC_CTRL_ENABLED HIGH