Update firmware_update.md

Author: nseidle

docs/firmware_update.md

@@ -122,7 +122,33 @@ Where */dev/ttyUSB0* is replaced with the port that the RTK product enumerated a
 
 Upon completion, your RTK device will reset and power down.
 
-## SparkFun RTK Build Environment - Ubuntu 20.04
+## Compiling Source
+
+### Windows
+
+The SparkFun RTK firmware is compiled using Arduino (currently v1.8.15). To compile:
+
+1. Install [Arduino](https://www.arduino.cc/en/software). 
+2. Install ESP32 for Arduino. [Here](https://learn.sparkfun.com/tutorials/esp32-thing-hookup-guide#installing-via-arduino-ide-boards-manager) are some good instructions for installing it via the Arduino Boards manager. **Note**: Use v2.0.2 of the core. **Note:** We use the 'ESP32 Dev Module' for pin numbering. Select the correct board under Tools->Board->ESP32 Arduino->ESP32 Dev Module.
+3. Change the Partition table. Replace 'C:\Users\\[user name]\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.2\tools\partitions\min_spiffs.csv' with the min_spiff.csv file found in this folder. This will increase the program partition from a maximum of 1.9MB to 3MB.
+4. Set the core settings: The 'Partition Scheme' must be set to 'Minimal SPIFFS (1.9MB APP with OTA/190KB SPIFFS). This will use the 'min_spiffs.csv' updated partition table.
+5. Set the 'Flash Size' to 16MB (128mbit)
+6. Obtain all the required libraries. **Note:** You should click on the link next to each of the #includes at the top of RTK_Surveyor.ino within the Arduino IDE to open the library manager and download them. Getting them directly from github also works but may not be 'official' releases:
+    * [ESP32Time](https://github.com/fbiego/ESP32Time)
+    * [ESPAsyncWebServer](https://github.com/me-no-dev/ESPAsyncWebServer) (not available via library manager)
+    * [AsyncTCP](https://github.com/me-no-dev/AsyncTCP) (not available via library manager)
+    * [JC_Button](https://github.com/JChristensen/JC_Button)
+    * [SdFat](https://github.com/greiman/SdFat)
+    * [SparkFun u-blox GNSS Arduino Library](https://github.com/sparkfun/SparkFun_u-blox_GNSS_Arduino_Library)
+    * [SparkFun MAX1704x Fuel Gauge Arduino Library](https://github.com/sparkfun/SparkFun_MAX1704x_Fuel_Gauge_Arduino_Library)
+    * [SparkFun Micro OLED Arduino Library](https://github.com/sparkfun/SparkFun_Micro_OLED_Arduino_Library) -  Note the Arduino Library manager lists this as 'SparkFun Micro OLED Breakout'
+    * [SparkFun LIS2DH12 Accelerometer Arduino Library](https://github.com/sparkfun/SparkFun_LIS2DH12_Arduino_Library)
+
+Once compiled, firmware can be uploaded directly to a unit when the RTK unit is on and the correct COM port is selected under the Arduino IDE Tools->Port menu.
+
+Note: The COMPILE_WIFI and COMPILE_BT defines at the top of RTK_Surveyor.ino can be commented out to remove them from compilation. This will greatly reduce the firmware size and allow for faster development of functions that do not rely on WiFi or Bluetooth (serial menus, system configuration, logging, etc).
+
+### Ubuntu 20.04
 
 Execute the following commands to create the build environment for the SparkFun RTK Firmware:
 
@@ -271,38 +297,6 @@ Enable the libraries in the Arduino IDE
 40. cd ~/SparkFun/RTK/
 41. cp  Firmware/app3M_fat9M_16MB.csv  ~/.arduino15/packages/esp32/hardware/esp32/2.0.3/tools/partitions/app3M_fat9M_16MB.csv
 
-## Build the SparkFun RTK Firmware - Linux
-
-In a terminal window:
-
-1. arduino
-    1. From the menu click on Sketch
-    2. Click on either Compile or Upload
-
-## Compiling from Source
-
-The SparkFun RTK firmware is compiled using Arduino (currently v1.8.15). To compile:
-
-1. Install [Arduino](https://www.arduino.cc/en/software). 
-2. Install ESP32 for Arduino. [Here](https://learn.sparkfun.com/tutorials/esp32-thing-hookup-guide#installing-via-arduino-ide-boards-manager) are some good instructions for installing it via the Arduino Boards manager. **Note**: Use v2.0.2 of the core. **Note:** We use the 'ESP32 Dev Module' for pin numbering. Select the correct board under Tools->Board->ESP32 Arduino->ESP32 Dev Module.
-3. Change the Partition table. Replace 'C:\Users\\[user name]\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.2\tools\partitions\min_spiffs.csv' with the min_spiff.csv file found in this folder. This will increase the program partition from a maximum of 1.9MB to 3MB.
-4. Set the core settings: The 'Partition Scheme' must be set to 'Minimal SPIFFS (1.9MB APP with OTA/190KB SPIFFS). This will use the 'min_spiffs.csv' updated partition table.
-5. Set the 'Flash Size' to 16MB (128mbit)
-6. Obtain all the required libraries. **Note:** You should click on the link next to each of the #includes at the top of RTK_Surveyor.ino within the Arduino IDE to open the library manager and download them. Getting them directly from github also works but may not be 'official' releases:
-    * [ESP32Time](https://github.com/fbiego/ESP32Time)
-    * [ESPAsyncWebServer](https://github.com/me-no-dev/ESPAsyncWebServer) (not available via library manager)
-    * [AsyncTCP](https://github.com/me-no-dev/AsyncTCP) (not available via library manager)
-    * [JC_Button](https://github.com/JChristensen/JC_Button)
-    * [SdFat](https://github.com/greiman/SdFat)
-    * [SparkFun u-blox GNSS Arduino Library](https://github.com/sparkfun/SparkFun_u-blox_GNSS_Arduino_Library)
-    * [SparkFun MAX1704x Fuel Gauge Arduino Library](https://github.com/sparkfun/SparkFun_MAX1704x_Fuel_Gauge_Arduino_Library)
-    * [SparkFun Micro OLED Arduino Library](https://github.com/sparkfun/SparkFun_Micro_OLED_Arduino_Library) -  Note the Arduino Library manager lists this as 'SparkFun Micro OLED Breakout'
-    * [SparkFun LIS2DH12 Accelerometer Arduino Library](https://github.com/sparkfun/SparkFun_LIS2DH12_Arduino_Library)
-
-Once compiled, firmware can be uploaded directly to a unit when the RTK unit is on and the correct COM port is selected under the Arduino IDE Tools->Port menu.
-
-Note: The COMPILE_WIFI and COMPILE_BT defines at the top of RTK_Surveyor.ino can be commented out to remove them from compilation. This will greatly reduce the firmware size and allow for faster development of functions that do not rely on WiFi or Bluetooth (serial menus, system configuration, logging, etc).
-
 ## Updating u-blox Firmware
 
 The following products contain the following u-blox receviers: