Exercise 12 works, needs GPS coordinates, Amy SD card not working

exercises/12_FiveTalk/platformio.ini

@@ -0,0 +1,79 @@
+; 20260219 ChatGPT
+; Exercise 12_FiveTalk
+
+[platformio]
+default_envs = amy
+
+[env]
+platform = espressif32
+framework = arduino
+board = esp32-s3-devkitc-1
+monitor_speed = 115200
+extra_scripts = pre:scripts/set_build_epoch.py
+lib_deps =
+  jgromes/RadioLib@^6.6.0
+  lewisxhe/XPowersLib@0.3.3
+  Wire
+  olikraus/U8g2@^2.36.4
+
+build_flags =
+  -I ../../shared/boards
+  -I ../../external/microReticulum_Firmware
+  -D BOARD_MODEL=BOARD_TBEAM_S_V1
+  -D OLED_SDA=17
+  -D OLED_SCL=18
+  -D OLED_ADDR=0x3C
+  -D GPS_RX_PIN=9
+  -D GPS_TX_PIN=8
+  -D GPS_WAKEUP_PIN=7
+  -D GPS_1PPS_PIN=6
+  -D LORA_CS=10
+  -D LORA_MOSI=11
+  -D LORA_SCK=12
+  -D LORA_MISO=13
+  -D LORA_RESET=5
+  -D LORA_DIO1=1
+  -D LORA_BUSY=4
+  -D LORA_TCXO_VOLTAGE=1.8
+  -D ARDUINO_USB_MODE=1
+  -D ARDUINO_USB_CDC_ON_BOOT=1
+
+[env:amy]
+extends = env
+build_flags =
+  ${env.build_flags}
+  -D NODE_LABEL=\"Amy\"
+  -D NODE_SHORT=\"A\"
+  -D NODE_SLOT_INDEX=0
+
+[env:bob]
+extends = env
+build_flags =
+  ${env.build_flags}
+  -D NODE_LABEL=\"Bob\"
+  -D NODE_SHORT=\"B\"
+  -D NODE_SLOT_INDEX=1
+
+[env:cy]
+extends = env
+build_flags =
+  ${env.build_flags}
+  -D NODE_LABEL=\"Cy\"
+  -D NODE_SHORT=\"C\"
+  -D NODE_SLOT_INDEX=2
+
+[env:dan]
+extends = env
+build_flags =
+  ${env.build_flags}
+  -D NODE_LABEL=\"Dan\"
+  -D NODE_SHORT=\"D\"
+  -D NODE_SLOT_INDEX=3
+
+[env:ed]
+extends = env
+build_flags =
+  ${env.build_flags}
+  -D NODE_LABEL=\"Ed\"
+  -D NODE_SHORT=\"E\"
+  -D NODE_SLOT_INDEX=4