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HaloKeymind/variants/heltec_tracker_v2/platformio.ini
T
agessaman 75d4656e59 chore(variants): drop the dead MAX_MQTT_BROKERS build flag 
Nothing has ever read it. The slot count comes from two other places: the
persisted array size (MAX_MQTT_SLOTS / RUNTIME_MQTT_SLOTS in MQTTPresets.h) and
the runtime cap MQTTBridge::getMaxActiveSlots(), which answers 5 with PSRAM and
2 without. A flag reading MAX_MQTT_BROKERS=3 sitting in every observer env
implies a third, lower limit that does not exist — it cost me a wrong answer
about how many MQTT slots a Heltec V4 exposes.

36 lines across 15 variants, all of them =3. Removing an unread -D cannot change
code: heltec_v4_repeater_observer_mqtt builds to a byte-identical size before and
after (1647744). The image checksum does differ, but so does it between two
clean builds of untouched source — ESP-IDF stamps the app descriptor with the
build time — so size is the meaningful comparison here.

All 606 envs still parse; heltec_v4, heltec_v3, station_g2, rak3112 and
xiao_s3_wio observer targets all build.
2026-08-08 08:28:18 -07:00

427 lines
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[Heltec_tracker_v2]
extends = esp32_base
board = heltec_tracker_v2
build_flags =
${esp32_base.build_flags}
${sensor_base.build_flags}
-I variants/heltec_tracker_v2
-D HELTEC_TRACKER_V2
; meshcore-dev uses 160MHz; 240MHz here for WiFi/MQTT bridge headroom
-D ESP32_CPU_FREQ=240
-D USE_SX1262
-D RADIO_CLASS=CustomSX1262
-D WRAPPER_CLASS=CustomSX1262Wrapper
-D P_LORA_TX_LED=18
-D P_LORA_DIO_1=14
-D P_LORA_NSS=8
-D P_LORA_RESET=12
-D P_LORA_BUSY=13
-D P_LORA_SCLK=9
-D P_LORA_MISO=11
-D P_LORA_MOSI=10
-D P_LORA_PA_POWER=7 ;VFEM_Ctrl -LDO power enable
-D P_LORA_KCT8103L_PA_CSD=4
-D P_LORA_KCT8103L_PA_CTX=5
-D LORA_TX_POWER=9 ; 9dBm + ~13dB KCT8103L gain = ~22dBm output
-D MAX_LORA_TX_POWER=22 ; Max SX1262 output -> ~28dBm at antenna
-D SX126X_DIO2_AS_RF_SWITCH=true
-D SX126X_DIO3_TCXO_VOLTAGE=1.8
-D SX126X_CURRENT_LIMIT=140
-D SX126X_RX_BOOSTED_GAIN=1
-D SX126X_REGISTER_PATCH=1
-D PIN_BOARD_SDA=6
-D PIN_BOARD_SCL=17
-D PIN_USER_BTN=0
-D PIN_TFT_SDA=42 ; SDIN
-D PIN_TFT_SCL=41 ; SCLK
-D PIN_TFT_DC=40 ; RS (register select)
-D PIN_TFT_RST=39 ; RES
-D PIN_TFT_CS=38
-D USE_PIN_TFT=1
-D PIN_VEXT_EN=3 ; Vext is connected to VDD which is also connected to OLED & GPS
-D PIN_VEXT_EN_ACTIVE=HIGH
-D PIN_TFT_LEDA_CTL=21 ; LEDK (switches on/off via mosfet to create the ground)
-D DISPLAY_ROTATION=1
-D PIN_GPS_RX=34
-D PIN_GPS_TX=33
-D PIN_GPS_RESET=35
-D PIN_GPS_RESET_ACTIVE=LOW
-D GPS_BAUD_RATE=115200
-D ENV_INCLUDE_GPS=1
-D PIN_ADC_CTRL=2
-D PIN_VBAT_READ=1
build_src_filter = ${esp32_base.build_src_filter}
+<../variants/heltec_tracker_v2>
+<helpers/sensors>
lib_deps =
${esp32_base.lib_deps}
${sensor_base.lib_deps}
bodmer/TFT_eSPI @ ^2.4.31
[Heltec_tracker_v1_1]
extends = Heltec_tracker_v2
board = heltec_tracker_v1_1
build_flags =
${esp32_base.build_flags}
${sensor_base.build_flags}
-I variants/heltec_tracker_v2
-D HELTEC_TRACKER_V1_1
-D ESP32_CPU_FREQ=240
-D USE_SX1262
-D RADIO_CLASS=CustomSX1262
-D WRAPPER_CLASS=CustomSX1262Wrapper
-D P_LORA_TX_LED=18
-D P_LORA_DIO_1=14
-D P_LORA_NSS=8
-D P_LORA_RESET=12
-D P_LORA_BUSY=13
-D P_LORA_SCLK=9
-D P_LORA_MISO=11
-D P_LORA_MOSI=10
-D LORA_TX_POWER=22
-D SX126X_DIO2_AS_RF_SWITCH=true
-D SX126X_DIO3_TCXO_VOLTAGE=1.8
-D SX126X_CURRENT_LIMIT=140
-D SX126X_RX_BOOSTED_GAIN=1
-D SX126X_REGISTER_PATCH=1
-D PIN_BOARD_SDA=6
-D PIN_BOARD_SCL=17
-D PIN_USER_BTN=0
-D PIN_TFT_SDA=42 ; SDIN
-D PIN_TFT_SCL=41 ; SCLK
-D PIN_TFT_DC=40 ; RS (register select)
-D PIN_TFT_RST=39 ; RES
-D PIN_TFT_CS=38
-D USE_PIN_TFT=1
-D PIN_VEXT_EN=3 ; Vext is connected to VDD which is also connected to OLED & GPS
-D PIN_VEXT_EN_ACTIVE=HIGH
-D PIN_TFT_LEDA_CTL=21 ; LEDK (switches on/off via mosfet to create the ground)
-D DISPLAY_ROTATION=1
-D PIN_GPS_RX=34
-D PIN_GPS_TX=33
-D PIN_GPS_RESET=35
-D PIN_GPS_RESET_ACTIVE=LOW
-D GPS_BAUD_RATE=115200
-D ENV_INCLUDE_GPS=1
-D PIN_ADC_CTRL=2
-D PIN_VBAT_READ=1
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
lib_deps = ${Heltec_tracker_v2.lib_deps}
[env:heltec_tracker_v2_repeater]
extends = Heltec_tracker_v2
build_flags =
${Heltec_tracker_v2.build_flags}
-D DISPLAY_CLASS=ST7735Display
-D ADVERT_NAME='"Heltec Repeater"'
-D ADVERT_LAT=0.0
-D ADVERT_LON=0.0
-D ADMIN_PASSWORD='"password"'
-D MAX_NEIGHBOURS=50
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
+<helpers/ui/ST7735Display.cpp>
+<../examples/simple_repeater>
lib_deps =
${Heltec_tracker_v2.lib_deps}
${esp32_ota.lib_deps}
bakercp/CRC32 @ ^2.0.0
[env:heltec_tracker_v2_repeater_bridge_espnow]
extends = Heltec_tracker_v2
build_flags =
${Heltec_tracker_v2.build_flags}
-D DISPLAY_CLASS=ST7735Display
-D ADVERT_NAME='"ESPNow Bridge"'
-D ADVERT_LAT=0.0
-D ADVERT_LON=0.0
-D ADMIN_PASSWORD='"password"'
-D MAX_NEIGHBOURS=50
-D WITH_ESPNOW_BRIDGE=1
; -D BRIDGE_DEBUG=1
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
+<helpers/bridges/ESPNowBridge.cpp>
+<helpers/ui/ST7735Display.cpp>
+<../examples/simple_repeater>
lib_deps =
${Heltec_tracker_v2.lib_deps}
${esp32_ota.lib_deps}
[env:heltec_tracker_v2_room_server]
extends = Heltec_tracker_v2
build_flags =
${Heltec_tracker_v2.build_flags}
-D DISPLAY_CLASS=ST7735Display
-D ADVERT_NAME='"Heltec Room"'
-D ADVERT_LAT=0.0
-D ADVERT_LON=0.0
-D ADMIN_PASSWORD='"password"'
-D ROOM_PASSWORD='"hello"'
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
+<helpers/ui/ST7735Display.cpp>
+<../examples/simple_room_server>
lib_deps =
${Heltec_tracker_v2.lib_deps}
${esp32_ota.lib_deps}
[env:heltec_tracker_v1_1_repeater_observer_mqtt]
extends = Heltec_tracker_v1_1
extra_scripts =
${esp32_base.extra_scripts}
pre:scripts/generate_cert_bundle.py
board_ssl_cert_source = adafruit-full
board_build.embed_files = src/certs/x509_crt_bundle.bin
build_flags =
${Heltec_tracker_v1_1.build_flags}
-D DISPLAY_CLASS=ST7735Display
-D ADVERT_NAME='"MQTT Observer"'
-D ADVERT_LAT=0.0
-D ADVERT_LON=0.0
-D ADMIN_PASSWORD='"password"'
-D MAX_NEIGHBOURS=50
-D WITH_MQTT_BRIDGE=1
; Non-PSRAM board: neighbors table costs ~4 KB of internal DRAM (see MQTTBridge.h).
-D MQTT_NEIGHBORS_WITHOUT_PSRAM=1
-D MQTT_MAX_PACKET_SIZE=1024
-D MQTT_DEBUG=1
-D CONFIG_MBEDTLS_CERTIFICATE_BUNDLE=y
-D MQTT_WIFI_TX_POWER=WIFI_POWER_11dBm
build_src_filter = ${Heltec_tracker_v1_1.build_src_filter}
+<helpers/bridges/MQTTBridge.cpp>
+<helpers/MQTTMessageBuilder.cpp>
+<helpers/JWTHelper.cpp>
+<helpers/ui/ST7735Display.cpp>
+<../examples/simple_repeater>
lib_deps =
${Heltec_tracker_v1_1.lib_deps}
${esp32_ota.lib_deps}
elims/PsychicMqttClient@^0.2.4
bblanchon/ArduinoJson @ 7.4.3
arduino-libraries/NTPClient
JChristensen/Timezone
paulstoffregen/Time@1.6.1
[env:heltec_tracker_v2_repeater_observer_mqtt]
extends = Heltec_tracker_v2
extra_scripts =
${esp32_base.extra_scripts}
pre:scripts/generate_cert_bundle.py
board_ssl_cert_source = adafruit-full
board_build.embed_files = src/certs/x509_crt_bundle.bin
build_flags =
${Heltec_tracker_v2.build_flags}
-D DISPLAY_CLASS=ST7735Display
-D ADVERT_NAME='"MQTT Observer"'
-D ADVERT_LAT=0.0
-D ADVERT_LON=0.0
-D ADMIN_PASSWORD='"password"'
-D MAX_NEIGHBOURS=50
-D WITH_MQTT_BRIDGE=1
; Non-PSRAM board: neighbors table costs ~4 KB of internal DRAM (see MQTTBridge.h).
-D MQTT_NEIGHBORS_WITHOUT_PSRAM=1
-D MQTT_MAX_PACKET_SIZE=1024
-D MQTT_DEBUG=1
-D CONFIG_MBEDTLS_CERTIFICATE_BUNDLE=y
-D MQTT_WIFI_TX_POWER=WIFI_POWER_11dBm
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
+<helpers/bridges/MQTTBridge.cpp>
+<helpers/MQTTMessageBuilder.cpp>
+<helpers/JWTHelper.cpp>
+<helpers/ui/ST7735Display.cpp>
+<../examples/simple_repeater>
lib_deps =
${Heltec_tracker_v2.lib_deps}
${esp32_ota.lib_deps}
elims/PsychicMqttClient@^0.2.4
bblanchon/ArduinoJson @ 7.4.3
arduino-libraries/NTPClient
JChristensen/Timezone
paulstoffregen/Time@1.6.1
[env:heltec_tracker_v1_1_room_server_observer_mqtt]
extends = Heltec_tracker_v1_1
extra_scripts =
${esp32_base.extra_scripts}
pre:scripts/generate_cert_bundle.py
board_ssl_cert_source = adafruit-full
board_build.embed_files = src/certs/x509_crt_bundle.bin
build_flags =
${Heltec_tracker_v1_1.build_flags}
-D DISPLAY_CLASS=ST7735Display
-D ADVERT_NAME='"Heltec Tracker Room Observer"'
-D ADVERT_LAT=0.0
-D ADVERT_LON=0.0
-D ADMIN_PASSWORD='"password"'
-D ROOM_PASSWORD='"hello"'
-D WITH_MQTT_BRIDGE=1
; Non-PSRAM board: neighbors table costs ~4 KB of internal DRAM (see MQTTBridge.h).
-D MQTT_NEIGHBORS_WITHOUT_PSRAM=1
-D MAX_NEIGHBOURS=50
-D MQTT_MAX_PACKET_SIZE=1024
-D MQTT_DEBUG=1
-D CONFIG_MBEDTLS_CERTIFICATE_BUNDLE=y
-D MQTT_WIFI_TX_POWER=WIFI_POWER_11dBm
build_src_filter = ${Heltec_tracker_v1_1.build_src_filter}
+<helpers/bridges/MQTTBridge.cpp>
+<helpers/MQTTMessageBuilder.cpp>
+<helpers/JWTHelper.cpp>
+<helpers/ui/ST7735Display.cpp>
+<../examples/simple_room_server>
lib_deps =
${Heltec_tracker_v1_1.lib_deps}
${esp32_ota.lib_deps}
elims/PsychicMqttClient@^0.2.4
bblanchon/ArduinoJson @ 7.4.3
arduino-libraries/NTPClient
JChristensen/Timezone
paulstoffregen/Time@1.6.1
[env:heltec_tracker_v2_room_server_observer_mqtt]
extends = Heltec_tracker_v2
extra_scripts =
${esp32_base.extra_scripts}
pre:scripts/generate_cert_bundle.py
board_ssl_cert_source = adafruit-full
board_build.embed_files = src/certs/x509_crt_bundle.bin
build_flags =
${Heltec_tracker_v2.build_flags}
-D DISPLAY_CLASS=ST7735Display
-D ADVERT_NAME='"Heltec Tracker Room Observer"'
-D ADVERT_LAT=0.0
-D ADVERT_LON=0.0
-D ADMIN_PASSWORD='"password"'
-D ROOM_PASSWORD='"hello"'
-D WITH_MQTT_BRIDGE=1
; Non-PSRAM board: neighbors table costs ~4 KB of internal DRAM (see MQTTBridge.h).
-D MQTT_NEIGHBORS_WITHOUT_PSRAM=1
-D MAX_NEIGHBOURS=50
-D MQTT_MAX_PACKET_SIZE=1024
-D MQTT_DEBUG=1
-D CONFIG_MBEDTLS_CERTIFICATE_BUNDLE=y
-D MQTT_WIFI_TX_POWER=WIFI_POWER_11dBm
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
+<helpers/bridges/MQTTBridge.cpp>
+<helpers/MQTTMessageBuilder.cpp>
+<helpers/JWTHelper.cpp>
+<helpers/ui/ST7735Display.cpp>
+<../examples/simple_room_server>
lib_deps =
${Heltec_tracker_v2.lib_deps}
${esp32_ota.lib_deps}
elims/PsychicMqttClient@^0.2.4
bblanchon/ArduinoJson @ 7.4.3
arduino-libraries/NTPClient
JChristensen/Timezone
paulstoffregen/Time@1.6.1
[env:heltec_tracker_v2_terminal_chat]
extends = Heltec_tracker_v2
build_flags =
${Heltec_tracker_v2.build_flags}
-D MAX_CONTACTS=350
-D MAX_GROUP_CHANNELS=1
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
+<../examples/simple_secure_chat/main.cpp>
lib_deps =
${Heltec_tracker_v2.lib_deps}
densaugeo/base64 @ ~1.4.0
[env:heltec_tracker_v2_companion_radio_usb]
extends = Heltec_tracker_v2
build_flags =
${Heltec_tracker_v2.build_flags}
-I examples/companion_radio/ui-new
-D MAX_CONTACTS=350
-D MAX_GROUP_CHANNELS=40
-D DISPLAY_CLASS=ST7735Display
-D ENABLE_USB_INTERFACE
; NOTE: DO NOT ENABLE --> -D MESH_PACKET_LOGGING=1
; NOTE: DO NOT ENABLE --> -D MESH_DEBUG=1
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
+<helpers/ui/ST7735Display.cpp>
+<helpers/ui/MomentaryButton.cpp>
+<../examples/companion_radio/*.cpp>
+<../examples/companion_radio/ui-new/*.cpp>
lib_deps =
${Heltec_tracker_v2.lib_deps}
densaugeo/base64 @ ~1.4.0
[env:heltec_tracker_v2_companion_radio_ble]
extends = Heltec_tracker_v2
build_flags =
${Heltec_tracker_v2.build_flags}
-I examples/companion_radio/ui-new
-D MAX_CONTACTS=350
-D MAX_GROUP_CHANNELS=40
-D DISPLAY_CLASS=ST7735Display
-D BLE_PIN_CODE=123456 ; dynamic, random PIN
-D AUTO_SHUTDOWN_MILLIVOLTS=3400
-D BLE_DEBUG_LOGGING=1
-D OFFLINE_QUEUE_SIZE=256
; -D BLE_DEBUG_LOGGING=1
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
+<helpers/ui/ST7735Display.cpp>
+<helpers/ui/MomentaryButton.cpp>
+<helpers/esp32/*.cpp>
+<../examples/companion_radio/*.cpp>
+<../examples/companion_radio/ui-new/*.cpp>
lib_deps =
${Heltec_tracker_v2.lib_deps}
densaugeo/base64 @ ~1.4.0
[env:heltec_tracker_v2_companion_radio_wifi]
extends = Heltec_tracker_v2
build_flags =
${Heltec_tracker_v2.build_flags}
-I examples/companion_radio/ui-new
-D MAX_CONTACTS=350
-D MAX_GROUP_CHANNELS=40
-D DISPLAY_CLASS=ST7735Display
-D WIFI_DEBUG_LOGGING=1
-D WIFI_SSID='"myssid"'
-D WIFI_PWD='"mypwd"'
-D OFFLINE_QUEUE_SIZE=256
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
+<helpers/ui/ST7735Display.cpp>
+<helpers/ui/MomentaryButton.cpp>
+<helpers/esp32/*.cpp>
+<../examples/companion_radio/*.cpp>
+<../examples/companion_radio/ui-new/*.cpp>
lib_deps =
${Heltec_tracker_v2.lib_deps}
densaugeo/base64 @ ~1.4.0
[env:heltec_tracker_v2_sensor]
extends = Heltec_tracker_v2
build_flags =
${Heltec_tracker_v2.build_flags}
-D ADVERT_NAME='"Heltec Tracker V2 Sensor"'
-D ADVERT_LAT=0.0
-D ADVERT_LON=0.0
-D ADMIN_PASSWORD='"password"'
-D DISPLAY_CLASS=ST7735Display
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
+<helpers/ui/ST7735Display.cpp>
+<../examples/simple_sensor>
lib_deps =
${Heltec_tracker_v2.lib_deps}
${esp32_ota.lib_deps}
[env:heltec_tracker_v2_kiss_modem]
extends = Heltec_tracker_v2
build_src_filter = ${Heltec_tracker_v2.build_src_filter}
+<../examples/kiss_modem/>
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