diff --git a/.github/workflows/githubci.yml b/.github/workflows/githubci.yml
index f934971..4e7e197 100644
--- a/.github/workflows/githubci.yml
+++ b/.github/workflows/githubci.yml
@@ -63,11 +63,18 @@ jobs:
     - name: Checkout Code
       uses: actions/checkout@v1
       with:
-        submodules: true      
+        submodules: true
+
+    - name: Checkout linkermap
+      uses: actions/checkout@v2
+      with:
+         repository: hathach/linkermap
+         path: linkermap
         
     - name: Install Toolchains
       run: |
         pip3 install adafruit-nrfutil uritemplate requests intelhex
+        pip3 install linkermap/
         npm install --global xpm
         # 9.3.1-1.2.1 is xpack modified version which significantly increased compiled size to 6-7KB and cause flash overflow.
         # Skip this version for now, we will try again with next official release from ARM
@@ -78,6 +85,9 @@ jobs:
       run: |
         make BOARD=${{ matrix.board }} all
         make BOARD=${{ matrix.board }} copy-artifact
+
+    - name: Linker Map
+      run: make BOARD=${{ matrix.board }} linkermap
       
     - uses: actions/upload-artifact@v2
       with:
diff --git a/Makefile b/Makefile
index 4a4efa9..fc05dd0 100644
--- a/Makefile
+++ b/Makefile
@@ -373,6 +373,10 @@ clean:
 	@$(RM) $(BUILD)
 	@$(RM) $(BIN)
 
+# linkermap must be install previously at https://github.com/hathach/linkermap
+linkermap: $(BUILD)/$(OUT_NAME).out
+	@linkermap -v $<.map
+
 # Create objects from C SRC files
 $(BUILD)/%.o: %.c
 	@echo CC $(notdir $<)
diff --git a/README.md b/README.md
index 639efd6..4bbbe23 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ This is a CDC/DFU/UF2 bootloader for nRF52 boards.
 - [Adafruit Feather nRF52840 Express](https://www.adafruit.com/product/4062)
 - [Adafruit Feather nRF52840 Sense](https://www.adafruit.com/product/4516)
 - [Adafruit ItsyBitsy nRF52840 Express](https://www.adafruit.com/product/4481)
+- [Adafruit LED Glasses Driver nRF52840](https://www.adafruit.com/product/5217)
 - Adafruit Metro nRF52840 Express
 - [Akizukidenshi AE-BL652-BO](https://akizukidenshi.com/catalog/g/gK-15567/)
 - [Electronut Labs Papyr](https://docs.electronut.in/papyr/)
diff --git a/src/boards/ledglasses_nrf52840/board.h b/src/boards/ledglasses_nrf52840/board.h
index e5a2f82..dd676d7 100644
--- a/src/boards/ledglasses_nrf52840/board.h
+++ b/src/boards/ledglasses_nrf52840/board.h
@@ -63,6 +63,6 @@
 #define UF2_PRODUCT_NAME   "Adafruit LED Glasses Driver nRF52840"
 #define UF2_VOLUME_LABEL   "GLASSESBOOT"
 #define UF2_BOARD_ID       "nRF52840-LedGlasses-revA"
-#define UF2_INDEX_URL      "https://www.adafruit.com/"
+#define UF2_INDEX_URL      "https://www.adafruit.com/product/5217"
 
 #endif // _LEDGLASSES_NRF52840_H