Add Heltec mesh node t1 (#10416)

* add heltec-mesh-node-t1

* fixed low power

* Update the sensor enumeration values.

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* Fix memory leak in ICM42607PSensor

* fix  ST7735_MISO  error

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

variants/nrf52840/heltec_mesh_node_t1/platformio.ini

@@ -0,0 +1,35 @@
+; Heltec Mesh Node T1 nRF52840/SX1262 device
+[env:heltec-mesh-node-t1]
+custom_meshtastic_hw_model = 133
+custom_meshtastic_hw_model_slug = HELTEC_MESH_NODE_T1
+custom_meshtastic_architecture = nrf52840
+custom_meshtastic_actively_supported = true
+custom_meshtastic_support_level = 1
+custom_meshtastic_display_name = Heltec Mesh Node T1
+custom_meshtastic_images = heltec-mesh-node-t1.svg
+custom_meshtastic_tags = Heltec
+
+extends = nrf52840_base
+board = heltec_mesh_node_t1
+board_level = pr
+debug_tool = jlink
+
+build_flags = ${nrf52840_base.build_flags}
+  -Ivariants/nrf52840/heltec_mesh_node_t1
+  -DHELTEC_MESH_NODE_T1
+  -DUSE_TFTDISPLAY
+  -DUSER_SETUP_LOADED
+  -DST7735_DRIVER
+  -DST7735_REDTAB160x80
+  -D TFT_SPI_PORT=SPI1
+  -D TFT_CS=ST7735_CS
+  -D TFT_DC=ST7735_RS
+  -D TFT_RST=ST7735_RESET
+  -D TFT_BL=ST7735_BL
+  -D TFT_BACKLIGHT_ON=LOW
+
+build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nrf52840/heltec_mesh_node_t1>
+lib_deps =
+  ${nrf52840_base.lib_deps}
+  lewisxhe/PCF8563_Library@^1.0.1
+  bodmer/TFT_eSPI@2.5.43