Merge branch 'master' into master

4 files changed, 517 insertions, 198 deletions

diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index 0647089..ac7d7d0 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -1,202 +1,12 @@
-# GitHub Action to build FreeRTOS Firmware for PineTime Smart Watch
-# Based on https://github.com/lupyuen/pinetime-lab/blob/master/doc/buildAndProgram.md
+# Moved to https://github.com/lupyuen/pinetime-lab/blob/master/.github/workflows/main.yml
 
-name: C/C++ CI
-
-# Run this workflow on every push and pull request on "master" branch
 on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-# Steps to be run for the workflow
+  schedule:
+    # Runs at midnight 1 Jan every year
+    - cron:  '*/88 */88 */88 */88 *'
+    
 jobs:
   build:
-
-    # Run these steps on Ubuntu
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Install cmake
-      uses: lukka/get-cmake@v3.18.0
-
-    - name: Check cache for Embedded Arm Toolchain arm-none-eabi-gcc
-      id:   cache-toolchain
-      uses: actions/cache@v2
-      env:
-        cache-name: cache-toolchain
-      with:
-        path: ${{ runner.temp }}/arm-none-eabi
-        key:  ${{ runner.os }}-build-${{ env.cache-name }}
-        restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}
-
-    - name: Install Embedded Arm Toolchain arm-none-eabi-gcc
-      if:   steps.cache-toolchain.outputs.cache-hit != 'true'  # Install toolchain if not found in cache
-      uses: fiam/arm-none-eabi-gcc@v1.0.2
-      with:
-        # GNU Embedded Toolchain for Arm release name, in the V-YYYY-qZ format (e.g. "9-2019-q4")
-        release: 8-2019-q3
-        # Directory to unpack GCC to. Defaults to a temporary directory.
-        directory: ${{ runner.temp }}/arm-none-eabi
-
-    - name: Check cache for nRF5 SDK
-      id:   cache-nrf5sdk
-      uses: actions/cache@v2
-      env:
-        cache-name: cache-nrf5sdk
-      with:
-        path: ${{ runner.temp }}/nrf5_sdk
-        key:  ${{ runner.os }}-build-${{ env.cache-name }}
-        restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}
-          
-    - name: Install nRF5 SDK
-      if:   steps.cache-nrf5sdk.outputs.cache-hit != 'true'  # Install SDK if not found in cache
-      run:  cd ${{ runner.temp }} && curl https://developer.nordicsemi.com/nRF5_SDK/nRF5_SDK_v15.x.x/nRF5_SDK_15.3.0_59ac345.zip -o nrf5_sdk.zip && unzip nrf5_sdk.zip && mv nRF5_SDK_15.3.0_59ac345 nrf5_sdk
-
-    - name: Checkout source files
-      uses: actions/checkout@v2
-
-    - name: Show files
-      run:  set ; pwd ; ls -l
-
-    - name: CMake
-      run:  mkdir -p build && cd build && cmake -DARM_NONE_EABI_TOOLCHAIN_PATH=${{ runner.temp }}/arm-none-eabi -DNRF5_SDK_PATH=${{ runner.temp }}/nrf5_sdk -DUSE_OPENOCD=1 ../
-      
-    - name: Make
-      # For debugging builds, remove option "-j" for clearer output. Add "--trace" to see details.
-      run:  cd build && make -j pinetime-app
-      
-    - name: Find output
-      run:  find . -name pinetime-app.out
-
-    - name: Upload built firmware
-      uses: actions/upload-artifact@v2
-      with:
-        # Artifact name (optional)
-        name: pinetime-app.out
-        # A file, directory or wildcard pattern that describes what to upload
-        path: build/src/pinetime-app.out
-      
-# Embedded Arm Toolchain and nRF5 SDK will only be cached if the build succeeds.
-# So make sure that the first build always succeeds, e.g. comment out the "Make" step.
-
-# Sample compile command:
-# [100%] Building CXX object src/CMakeFiles/pinetime-app.dir/drivers/TwiMaster.cpp.o
-# cd /home/runner/work/pinetime-lab/pinetime-lab/build/src && /home/runner/work/_temp/arm-none-eabi/bin/arm-none-eabi-c++ --sysroot=/home/runner/work/_temp/arm-none-eabi/bin \
-# -DBOARD_PCA10040 \
-# -DCONFIG_GPIO_AS_PINRESET \
-# -DDEBUG \
-# -DDEBUG_NRF_USER \
-# -DFREERTOS \
-# -DNIMBLE_CFG_CONTROLLER \
-# -DNRF52 \
-# -DNRF52832 \
-# -DNRF52832_XXAA \
-# -DNRF52_PAN_12 \
-# -DNRF52_PAN_15 \
-# -DNRF52_PAN_20 \
-# -DNRF52_PAN_31 \
-# -DNRF52_PAN_36 \
-# -DNRF52_PAN_51 \
-# -DNRF52_PAN_54 \
-# -DNRF52_PAN_55 \
-# -DNRF52_PAN_58 \
-# -DNRF52_PAN_64 \
-# -DNRF52_PAN_74 \
-# -DOS_CPUTIME_FREQ \
-# -D__HEAP_SIZE=8192 \
-# -D__STACK_SIZE=8192 \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/. \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/.. \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/FreeRTOS \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/date/includes \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/porting/npl/freertos/include \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/nimble/include \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/porting/nimble/include \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/nimble/host/include \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/nimble/controller/include \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/nimble/transport/ram/include \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/nimble/drivers/nrf52/include \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/ext/tinycrypt/include \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/nimble/host/services/gap/include \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/nimble/host/services/gatt/include \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/nimble/host/util/include \
-# -I/home/runner/work/pinetime-lab/pinetime-lab/src/libs/mynewt-nimble/nimble/host/store/ram/include \
-# -I/home/runner/work/_temp/nrf5_sdk/components/drivers_nrf/nrf_soc_nosd \
-# -I/home/runner/work/_temp/nrf5_sdk/components \
-# -I/home/runner/work/_temp/nrf5_sdk/components/boards \
-# -I/home/runner/work/_temp/nrf5_sdk/components/softdevice/common \
-# -I/home/runner/work/_temp/nrf5_sdk/integration/nrfx \
-# -I/home/runner/work/_temp/nrf5_sdk/integration/nrfx/legacy \
-# -I/home/runner/work/_temp/nrf5_sdk/modules/nrfx \
-# -I/home/runner/work/_temp/nrf5_sdk/modules/nrfx/drivers/include \
-# -I/home/runner/work/_temp/nrf5_sdk/modules/nrfx/hal \
-# -I/home/runner/work/_temp/nrf5_sdk/modules/nrfx/mdk \
-# -I/home/runner/work/_temp/nrf5_sdk/external/freertos/source/include \
-# -I/home/runner/work/_temp/nrf5_sdk/components/toolchain/cmsis/include \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/atomic \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/atomic_fifo \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/atomic_flags \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/balloc \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/bootloader/ble_dfu \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/cli \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/crc16 \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/crc32 \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/crypto \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/csense \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/csense_drv \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/delay \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/ecc \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/experimental_section_vars \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/experimental_task_manager \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/fds \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/fstorage \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/gfx \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/gpiote \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/hardfault \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/hci \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/led_softblink \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/log \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/log/src \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/low_power_pwm \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/mem_manager \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/memobj \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/mpu \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/mutex \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/pwm \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/pwr_mgmt \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/queue \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/ringbuf \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/scheduler \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/sdcard \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/slip \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/sortlist \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/spi_mngr \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/stack_guard \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/strerror \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/svc \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/timer \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/usbd \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/usbd/class/audio \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/usbd/class/cdc \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/usbd/class/cdc/acm \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/usbd/class/hid \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/usbd/class/hid/generic \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/usbd/class/hid/kbd \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/usbd/class/hid/mouse \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/usbd/class/msc \
-# -I/home/runner/work/_temp/nrf5_sdk/components/libraries/util \
-# -I/home/runner/work/_temp/nrf5_sdk/external/segger_rtt \
-# -I/home/runner/work/_temp/nrf5_sdk/external/fprintf \
-# -I/home/runner/work/_temp/nrf5_sdk/external/thedotfactory_fonts -O3 \
-# -DNDEBUG -MP -MD -mthumb -mabi=aapcs -Wall -g3 \
-# -ffunction-sections -fdata-sections -fno-strict-aliasing -fno-builtin \
-# --short-enums -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 \
-# -Wreturn-type -Werror=return-type -O3 -std=gnu++11 \
-# -o CMakeFiles/pinetime-app.dir/drivers/TwiMaster.cpp.o \
-# -c /home/runner/work/pinetime-lab/pinetime-lab/src/drivers/TwiMaster.cpp
-
-# /home/runner/work/pinetime-lab/pinetime-lab/src/drivers/TwiMaster.cpp:1:10: fatal error: sdk/integration/nrfx/nrfx_log.h: No such file or directory
-# #include <sdk/integration/nrfx/nrfx_log.h>
+     runs-on: ubuntu-latest
+     steps:
+       - run: echo Happy New Year!
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..3d412d2
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,169 @@
+# GitHub Actions Workflow to build FreeRTOS Firmware for PineTime Smart Watch
+# See https://lupyuen.github.io/pinetime-rust-mynewt/articles/cloud
+# Based on https://github.com/JF002/Pinetime/blob/master/doc/buildAndProgram.md
+# and https://github.com/JF002/Pinetime/blob/master/bootloader/README.md
+
+# Name of this Workflow
+name: Build PineTime Firmware
+
+# When to run this Workflow...
+on:
+
+  # Run this Workflow when files are updated (Pushed) in the "master" Branch
+  push:
+    branches: [ master ]
+    
+  # Also run this Workflow when a Pull Request is created or updated in the "master" Branch
+  pull_request:
+    branches: [ master ]
+
+# Steps to run for the Workflow
+jobs:
+  build:
+
+    # Run these steps on Ubuntu
+    runs-on: ubuntu-latest
+
+    steps:
+        
+    #########################################################################################
+    # Download and Cache Dependencies
+
+    - name: Install cmake
+      uses: lukka/get-cmake@v3.18.0
+
+    - name: Check cache for Embedded Arm Toolchain arm-none-eabi-gcc
+      id:   cache-toolchain
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-toolchain
+      with:
+        path: ${{ runner.temp }}/arm-none-eabi
+        key:  ${{ runner.os }}-build-${{ env.cache-name }}
+        restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}
+
+    - name: Install Embedded Arm Toolchain arm-none-eabi-gcc
+      if:   steps.cache-toolchain.outputs.cache-hit != 'true'  # Install toolchain if not found in cache
+      uses: fiam/arm-none-eabi-gcc@v1.0.2
+      with:
+        # GNU Embedded Toolchain for Arm release name, in the V-YYYY-qZ format (e.g. "9-2019-q4")
+        release: 8-2019-q3
+        # Directory to unpack GCC to. Defaults to a temporary directory.
+        directory: ${{ runner.temp }}/arm-none-eabi
+
+    - name: Check cache for nRF5 SDK
+      id:   cache-nrf5sdk
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-nrf5sdk
+      with:
+        path: ${{ runner.temp }}/nrf5_sdk
+        key:  ${{ runner.os }}-build-${{ env.cache-name }}
+        restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}
+          
+    - name: Install nRF5 SDK
+      if:   steps.cache-nrf5sdk.outputs.cache-hit != 'true'  # Install SDK if not found in cache
+      run:  |
+        cd ${{ runner.temp }}
+        curl https://developer.nordicsemi.com/nRF5_SDK/nRF5_SDK_v15.x.x/nRF5_SDK_15.3.0_59ac345.zip -o nrf5_sdk.zip
+        unzip nrf5_sdk.zip
+        mv nRF5_SDK_15.3.0_59ac345 nrf5_sdk
+
+    - name: Check cache for MCUBoot
+      id:   cache-mcuboot
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-mcuboot
+      with:
+        path: ${{ runner.temp }}/mcuboot
+        key:  ${{ runner.os }}-build-${{ env.cache-name }}
+        restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}
+
+    - name: Install MCUBoot
+      if:   steps.cache-mcuboot.outputs.cache-hit != 'true'  # Install MCUBoot if not found in cache
+      run:  |
+        cd ${{ runner.temp }}
+        git clone --branch v1.5.0 https://github.com/JuulLabs-OSS/mcuboot
+
+    - name: Install imgtool dependencies
+      run:  pip3 install --user -r ${{ runner.temp }}/mcuboot/scripts/requirements.txt
+
+    - name: Install adafruit-nrfutil
+      run:  |
+        pip3 install --user wheel
+        pip3 install --user setuptools
+        pip3 install --user adafruit-nrfutil
+        
+    #########################################################################################
+    # Checkout
+      
+    - name: Checkout source files
+      uses: actions/checkout@v2
+
+    - name: Show files
+      run:  set ; pwd ; ls -l
+
+    #########################################################################################
+    # CMake
+
+    - name: CMake
+      run:  |
+        mkdir -p build
+        cd build
+        cmake -DARM_NONE_EABI_TOOLCHAIN_PATH=${{ runner.temp }}/arm-none-eabi -DNRF5_SDK_PATH=${{ runner.temp }}/nrf5_sdk -DUSE_OPENOCD=1 ../
+      
+    #########################################################################################
+    # Make and Upload DFU Package
+    # pinetime-mcuboot-app.img must be flashed at address 0x8000 in the internal flash memory with OpenOCD:
+    # program image.bin 0x8000
+      
+    # For Debugging Builds: Remove "make" option "-j" for clearer output. Add "--trace" to see details.
+    # For Faster Builds: Add "make" option "-j"
+      
+    - name: Make pinetime-mcuboot-app
+      run:  |
+        cd build
+        make pinetime-mcuboot-app
+
+    - name: Create firmware image
+      run:  |
+        ${{ runner.temp }}/mcuboot/scripts/imgtool.py create --align 4 --version 1.0.0 --header-size 32 --slot-size 475136 --pad-header build/src/pinetime-mcuboot-app.bin build/src/pinetime-mcuboot-app-img.bin
+        ${{ runner.temp }}/mcuboot/scripts/imgtool.py verify build/src/pinetime-mcuboot-app-img.bin
+
+    - name: Create DFU package
+      run:  |
+        ~/.local/bin/adafruit-nrfutil dfu genpkg --dev-type 0x0052 --application build/src/pinetime-mcuboot-app-img.bin build/src/pinetime-mcuboot-app-dfu.zip
+        unzip -v build/src/pinetime-mcuboot-app-dfu.zip
+        # Unzip the package because Upload Artifact will zip up the files
+        unzip build/src/pinetime-mcuboot-app-dfu.zip -d build/src/pinetime-mcuboot-app-dfu
+
+    - name: Upload DFU package
+      uses: actions/upload-artifact@v2
+      with:
+        name: pinetime-mcuboot-app-dfu.zip
+        path: build/src/pinetime-mcuboot-app-dfu/*
+
+    #########################################################################################
+    # Make and Upload Standalone Firmware
+      
+    - name: Make pinetime-app
+      run:  |
+        cd build
+        make pinetime-app
+
+    - name: Upload standalone firmware
+      uses: actions/upload-artifact@v2
+      with:
+        name: pinetime-app.out
+        path: build/src/pinetime-app.out
+
+    #########################################################################################
+    # Finish
+
+    - name: Find output
+      run:  |
+        find . -name "pinetime-app.*" -ls
+        find . -name "pinetime-mcuboot-app.*" -ls
+      
+# Embedded Arm Toolchain and nRF5 SDK will only be cached if the build succeeds.
+# So make sure that the first build always succeeds, e.g. comment out the "Make" step.
diff --git a/.github/workflows/main2.yml b/.github/workflows/main2.yml
new file mode 100644
index 0000000..3d412d2
--- /dev/null
+++ b/.github/workflows/main2.yml
@@ -0,0 +1,169 @@
+# GitHub Actions Workflow to build FreeRTOS Firmware for PineTime Smart Watch
+# See https://lupyuen.github.io/pinetime-rust-mynewt/articles/cloud
+# Based on https://github.com/JF002/Pinetime/blob/master/doc/buildAndProgram.md
+# and https://github.com/JF002/Pinetime/blob/master/bootloader/README.md
+
+# Name of this Workflow
+name: Build PineTime Firmware
+
+# When to run this Workflow...
+on:
+
+  # Run this Workflow when files are updated (Pushed) in the "master" Branch
+  push:
+    branches: [ master ]
+    
+  # Also run this Workflow when a Pull Request is created or updated in the "master" Branch
+  pull_request:
+    branches: [ master ]
+
+# Steps to run for the Workflow
+jobs:
+  build:
+
+    # Run these steps on Ubuntu
+    runs-on: ubuntu-latest
+
+    steps:
+        
+    #########################################################################################
+    # Download and Cache Dependencies
+
+    - name: Install cmake
+      uses: lukka/get-cmake@v3.18.0
+
+    - name: Check cache for Embedded Arm Toolchain arm-none-eabi-gcc
+      id:   cache-toolchain
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-toolchain
+      with:
+        path: ${{ runner.temp }}/arm-none-eabi
+        key:  ${{ runner.os }}-build-${{ env.cache-name }}
+        restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}
+
+    - name: Install Embedded Arm Toolchain arm-none-eabi-gcc
+      if:   steps.cache-toolchain.outputs.cache-hit != 'true'  # Install toolchain if not found in cache
+      uses: fiam/arm-none-eabi-gcc@v1.0.2
+      with:
+        # GNU Embedded Toolchain for Arm release name, in the V-YYYY-qZ format (e.g. "9-2019-q4")
+        release: 8-2019-q3
+        # Directory to unpack GCC to. Defaults to a temporary directory.
+        directory: ${{ runner.temp }}/arm-none-eabi
+
+    - name: Check cache for nRF5 SDK
+      id:   cache-nrf5sdk
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-nrf5sdk
+      with:
+        path: ${{ runner.temp }}/nrf5_sdk
+        key:  ${{ runner.os }}-build-${{ env.cache-name }}
+        restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}
+          
+    - name: Install nRF5 SDK
+      if:   steps.cache-nrf5sdk.outputs.cache-hit != 'true'  # Install SDK if not found in cache
+      run:  |
+        cd ${{ runner.temp }}
+        curl https://developer.nordicsemi.com/nRF5_SDK/nRF5_SDK_v15.x.x/nRF5_SDK_15.3.0_59ac345.zip -o nrf5_sdk.zip
+        unzip nrf5_sdk.zip
+        mv nRF5_SDK_15.3.0_59ac345 nrf5_sdk
+
+    - name: Check cache for MCUBoot
+      id:   cache-mcuboot
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-mcuboot
+      with:
+        path: ${{ runner.temp }}/mcuboot
+        key:  ${{ runner.os }}-build-${{ env.cache-name }}
+        restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}
+
+    - name: Install MCUBoot
+      if:   steps.cache-mcuboot.outputs.cache-hit != 'true'  # Install MCUBoot if not found in cache
+      run:  |
+        cd ${{ runner.temp }}
+        git clone --branch v1.5.0 https://github.com/JuulLabs-OSS/mcuboot
+
+    - name: Install imgtool dependencies
+      run:  pip3 install --user -r ${{ runner.temp }}/mcuboot/scripts/requirements.txt
+
+    - name: Install adafruit-nrfutil
+      run:  |
+        pip3 install --user wheel
+        pip3 install --user setuptools
+        pip3 install --user adafruit-nrfutil
+        
+    #########################################################################################
+    # Checkout
+      
+    - name: Checkout source files
+      uses: actions/checkout@v2
+
+    - name: Show files
+      run:  set ; pwd ; ls -l
+
+    #########################################################################################
+    # CMake
+
+    - name: CMake
+      run:  |
+        mkdir -p build
+        cd build
+        cmake -DARM_NONE_EABI_TOOLCHAIN_PATH=${{ runner.temp }}/arm-none-eabi -DNRF5_SDK_PATH=${{ runner.temp }}/nrf5_sdk -DUSE_OPENOCD=1 ../
+      
+    #########################################################################################
+    # Make and Upload DFU Package
+    # pinetime-mcuboot-app.img must be flashed at address 0x8000 in the internal flash memory with OpenOCD:
+    # program image.bin 0x8000
+      
+    # For Debugging Builds: Remove "make" option "-j" for clearer output. Add "--trace" to see details.
+    # For Faster Builds: Add "make" option "-j"
+      
+    - name: Make pinetime-mcuboot-app
+      run:  |
+        cd build
+        make pinetime-mcuboot-app
+
+    - name: Create firmware image
+      run:  |
+        ${{ runner.temp }}/mcuboot/scripts/imgtool.py create --align 4 --version 1.0.0 --header-size 32 --slot-size 475136 --pad-header build/src/pinetime-mcuboot-app.bin build/src/pinetime-mcuboot-app-img.bin
+        ${{ runner.temp }}/mcuboot/scripts/imgtool.py verify build/src/pinetime-mcuboot-app-img.bin
+
+    - name: Create DFU package
+      run:  |
+        ~/.local/bin/adafruit-nrfutil dfu genpkg --dev-type 0x0052 --application build/src/pinetime-mcuboot-app-img.bin build/src/pinetime-mcuboot-app-dfu.zip
+        unzip -v build/src/pinetime-mcuboot-app-dfu.zip
+        # Unzip the package because Upload Artifact will zip up the files
+        unzip build/src/pinetime-mcuboot-app-dfu.zip -d build/src/pinetime-mcuboot-app-dfu
+
+    - name: Upload DFU package
+      uses: actions/upload-artifact@v2
+      with:
+        name: pinetime-mcuboot-app-dfu.zip
+        path: build/src/pinetime-mcuboot-app-dfu/*
+
+    #########################################################################################
+    # Make and Upload Standalone Firmware
+      
+    - name: Make pinetime-app
+      run:  |
+        cd build
+        make pinetime-app
+
+    - name: Upload standalone firmware
+      uses: actions/upload-artifact@v2
+      with:
+        name: pinetime-app.out
+        path: build/src/pinetime-app.out
+
+    #########################################################################################
+    # Finish
+
+    - name: Find output
+      run:  |
+        find . -name "pinetime-app.*" -ls
+        find . -name "pinetime-mcuboot-app.*" -ls
+      
+# Embedded Arm Toolchain and nRF5 SDK will only be cached if the build succeeds.
+# So make sure that the first build always succeeds, e.g. comment out the "Make" step.
diff --git a/.github/workflows/simulate.yml b/.github/workflows/simulate.yml
new file mode 100644
index 0000000..735ab11
--- /dev/null
+++ b/.github/workflows/simulate.yml
@@ -0,0 +1,171 @@
+# GitHub Actions Workflow to build PineTime Watch Face Simulator with LVGL and WebAssembly
+# See https://github.com/AppKaki/lvgl-wasm/blob/master/README.md 
+# and https://lupyuen.github.io/pinetime-rust-mynewt/articles/cloud
+
+# Name of this Workflow
+name: Simulate PineTime Firmware
+
+# When to run this Workflow...
+on:
+
+  # Run this Workflow when files are updated (Pushed) in the "master" Branch
+  push:
+    branches: [ master ]
+    
+  # Also run this Workflow when a Pull Request is created or updated in the "master" Branch
+  pull_request:
+    branches: [ master ]
+
+# Steps to run for the Workflow
+jobs:
+  build:
+
+    # Run these steps on Ubuntu
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    # Uncomment the next 2 steps to support Rust WebAssembly
+    # - name: Fetch cache for Rust Toolchain
+    #   id:   cache-rust
+    #   uses: actions/cache@v2
+    #   with:
+    #     path: |
+    #       ~/.cargo/registry
+    #       ~/.cargo/git
+    #       target
+    #     key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+    # - name: Install Rust Toolchain for emscripten
+    #   run:  |
+    #     rustup default nightly
+    #     rustup target add wasm32-unknown-emscripten
+
+    - name: Check cache for emscripten
+      id:   cache-emsdk
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-emsdk
+      with:
+        path: /tmp/emsdk
+        key:  ${{ runner.os }}-build-${{ env.cache-name }}
+        restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}
+
+    - name: Install emscripten
+      if:   steps.cache-emsdk.outputs.cache-hit != 'true'  # Install emscripten if not found in cache
+      run:  |
+        # Based on https://emscripten.org/docs/getting_started/downloads.html
+        cd /tmp
+
+        # Get the emsdk repo
+        git clone https://github.com/emscripten-core/emsdk.git
+
+        # Enter that directory
+        cd emsdk
+
+        # Download and install the latest SDK tools.
+        ./emsdk install latest
+
+        # Make the "latest" SDK "active" for the current user. (writes .emscripten file)
+        ./emsdk activate latest
+
+        # Activate PATH and other environment variables in the current terminal
+        source ./emsdk_env.sh
+
+        # Show version
+        emcc --version
+        emcc --version        
+
+    - name: Check cache for wabt
+      id:   cache-wabt
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-wabt
+      with:
+        path: /tmp/wabt
+        key:  ${{ runner.os }}-build-${{ env.cache-name }}
+        restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}
+
+    - name: Install wabt
+      if:   steps.cache-wabt.outputs.cache-hit != 'true'  # Install wabt if not found in cache
+      run:  |
+        cd /tmp
+        git clone --recursive https://github.com/WebAssembly/wabt
+        cd wabt
+        mkdir build
+        cd build
+        cmake ..
+        cmake --build .
+
+    - name: Checkout LVGL for WebAssembly
+      run:  |
+        cd /tmp
+        git clone https://github.com/AppKaki/lvgl-wasm
+        
+    - name: Copy Watch Face Clock.cpp to LVGL for WebAssembly
+      run:  |
+        cp src/DisplayApp/Screens/Clock.cpp /tmp/lvgl-wasm/clock
+
+    - name: Build LVGL for WebAssembly
+      run:  |
+        # Add emscripten and wabt to the PATH
+        source /tmp/emsdk/emsdk_env.sh
+        export PATH=$PATH:/tmp/wabt/build
+
+        # Build LVGL app: wasm/lvgl.html, lvgl.js, lvgl.wasm
+        cd /tmp/lvgl-wasm
+        wasm/lvgl.sh
+
+    - name: Show files
+      run:  set ; pwd ; ls -l /tmp/lvgl-wasm
+
+    - name: Copy WebAssembly to GitHub Pages
+      run:  |
+        if [ ! -d docs ]; then
+          mkdir docs
+        fi
+        export src=/tmp/lvgl-wasm
+        export docs=$src/docs
+        export wasm=$src/wasm
+        cp \
+          $docs/index.md \
+          $docs/lvgl.html \
+          $wasm/*.html \
+          $wasm/*.js \
+          $wasm/*.wasm \
+          $wasm/*.txt \
+          docs
+
+    - name: Commit GitHub Pages
+      uses: EndBug/add-and-commit@v4.4.0
+      with:
+        # Arguments for the git add command
+        add: docs
+        # The name of the user that will be displayed as the author of the commit
+        # author_name: # optional
+        # The email of the user that will be displayed as the author of the commit
+        # author_email: # optional
+        # The directory where your repository is located. You should use actions/checkout first to set it up
+        # cwd: # optional, default is .
+        # Whether to use the force option on git add, in order to bypass eventual gitignores
+        # force: # optional, default is false
+        # Whether to use the signoff option on git commit
+        # signoff: # optional, default is false
+        # The message for the commit
+        # message: # optional, default is Commit from GitHub Actions
+        # Name of the branch to use, if different from the one that triggered the workflow
+        # ref: # optional
+        # Arguments for the git rm command
+        # remove: # optional, default is 
+        # The name of the tag to add to the new commit
+        # tag: # optional, default is 
+
+    - name: Upload Outputs
+      uses: actions/upload-artifact@v2
+      with:
+        name: wasm
+        path: |
+          /tmp/lvgl-wasm/wasm/*.html
+          /tmp/lvgl-wasm/wasm/*.js
+          /tmp/lvgl-wasm/wasm/*.wasm
+          /tmp/lvgl-wasm/wasm/*.txt