Cleanup old pio envs, fix some compilation issues with compile flags

Removed some legacy platformio envs that are not actively being maintained. But also fixed some bugs with different build flags that caused compilation issues.

Fixes #49

firmware/platformio.ini

@@ -8,6 +8,9 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
+[platformio]
+default_envs = view
+
 [base_config]
 platform = espressif32@3.4
 framework = arduino
@@ -24,50 +27,6 @@ lib_deps =
 build_flags =
   -DCORE_DEBUG_LEVEL=ARDUHAL_LOG_LEVEL_DEBUG
 
-[env:proto]
-extends = base_config
-board = esp32doit-devkit-v1
-lib_deps =
-  ${base_config.lib_deps}
-  bodmer/TFT_eSPI@2.4.25
-
-build_flags =
-  ${base_config.build_flags}
-  -DSK_DISPLAY=1
-
-  -DPIN_UH=27
-  -DPIN_UL=26
-  -DPIN_VH=25
-  -DPIN_VL=33
-  -DPIN_WH=32
-  -DPIN_WL=13
-  -DPIN_BUTTON_NEXT=36
-  -DPIN_BUTTON_PREV=-1
-  -DPIN_SDA=-1
-  -DPIN_SCL=-1
-  -DSENSOR_MT6701=1
-
-  -DDESCRIPTION_FONT=Roboto_Thin_24
-  -DDESCRIPTION_Y_OFFSET=20
-  -DVALUE_OFFSET=30
-  -DDRAW_ARC=0
-
-  -DUSER_SETUP_LOADED=1
-  -DGC9A01_DRIVER=1
-  -DCGRAM_OFFSET=1
-  -DTFT_WIDTH=240
-  -DTFT_HEIGHT=240
-  -DTFT_MISO=-1
-  -DTFT_MOSI=19
-  -DTFT_SCLK=18
-  -DTFT_CS=5
-  -DTFT_DC=16
-  -DTFT_RST=23
-  -DTFT_BL=4
-  -DLOAD_GLCD=1
-  -DLOAD_GFXFF=1
-  -DSPI_FREQUENCY=40000000
-
 [env:view]
 extends = base_config
 ; platform = https://github.com/platformio/platform-espressif32.git#feature/arduino-upstream
@@ -109,8 +68,6 @@ build_flags =
   -DPIN_LED_DATA=7
   -DPIN_LCD_BACKLIGHT=19
 
-  -DLEDC_CHANNEL_LCD_BACKLIGHT=0
-
   -DDESCRIPTION_FONT=Roboto_Thin_24
   -DDESCRIPTION_Y_OFFSET=20
   -DVALUE_OFFSET=30
@@ -147,26 +104,6 @@ build_flags =
   ; (SOC_GPIO_VALID_GPIO_MASK & ~(0ULL | _FL_BIT(34) | _FL_BIT(35) | _FL_BIT(36) | _FL_BIT(37) | _FL_BIT(38) | _FL_BIT(39)))
   -DSOC_GPIO_VALID_OUTPUT_GPIO_MASK=0x30EFFFFFF
 
-
-[env:handheld]
-extends = base_config
-board = tinypico
-
-build_flags =
-  ${base_config.build_flags}
-  -DSK_DISPLAY=0
-
-  -DPIN_UH=25
-  -DPIN_UL=26
-  -DPIN_VH=27
-  -DPIN_VL=15
-  -DPIN_WH=14
-  -DPIN_WL=4
-  -DPIN_BUTTON_NEXT=23
-  -DPIN_BUTTON_PREV=-1
-  -DPIN_SDA=33
-  -DPIN_SCL=32
-  -DSENSOR_TLV=1
   
 [env:handheld_tdisplay]
 extends = base_config
@@ -195,6 +132,7 @@ build_flags =
   -DPIN_MT_DATA=21
   -DPIN_MT_CLOCK=22
   -DPIN_MT_CSN=12
+  -DPIN_LCD_BACKLIGHT=4
 
   -DDESCRIPTION_FONT=FreeSans9pt7b
   -DDESCRIPTION_Y_OFFSET=80
@@ -212,7 +150,7 @@ build_flags =
   -DTFT_CS=5
   -DTFT_DC=16
   -DTFT_RST=23
-  -DTFT_BL=4
+  -DTFT_BL=-1
   -DLOAD_GLCD=1
   -DLOAD_GFXFF=1
   -DSPI_FREQUENCY=40000000