big update for Sensor Watch Pro

Author: joeycastillo

content/en/docs/_index.md

@@ -6,17 +6,26 @@ menu:
   main:
     weight: 10
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-**Not sure where to start?** If you bought a Sensor Watch board on Crowd Supply and need to assemble it, follow the instructions in the video below. But first, read these two notes:
+**Not sure where to start?** If you bought a Sensor Watch board on Crowd Supply and need to assemble it, follow the instructions in the video below. But first, read these notes:
 
 Did you also get a Sensor Board?
 --------------------------------
 
 If you have a sensor board (such as the Temperature Sensor included with most early orders), **you must install it first**, before you begin the steps in the video. Your sensor board will come packaged with instructions describing how to install it in the Sensor Watch 9-pin connector.
 
-Do you want to install alternate firmware?
-------------------------------------------
+Update firmware before assembling!
+----------------------------------
+
+Sensor Watch Pro ships with a special build of Second Movement that supports both the classic and the custom LCD, via a button press at boot. **It's highly recommended to install a new version of the firmware that targets the LCD you intend to use!** If you wish to install an [alternate firmware](/docs/firmware/prebuilt/), you should download it and install it before installing your Sensor Watch board in the watch case, as installing it in the watch case renders the USB port inaccessible. Instructions for flashing new firmware [can be found here](/docs/firmware/flashing/).
+
+Get to Know Your Watch
+----------------------
+
+**[Detailed documentation for using Second Movement, the standard firmware for Sensor Watch, is available here.](/docs/using/)**
+
+Assembly Video
+--------------
 
-Sensor Watch ships with a build of Movement that includes a Clock and World Clock, as well as a Sunrise/Sunset and Moon Phase complication (backer boards also include a Temperature watch face). If you wish to install an [alternate firmware](/docs/firmware/prebuilt/), you should download it and install it before installing your Sensor Watch board in the watch case, as installing it in the watch case renders the USB port inaccessible. Instructions for flashing new firmware [can be found here](/docs/firmware/flashing/).
 
 {{< youtube id="Zr0pKeC2VFU" >}}
 

content/en/docs/firmware/customlcd.md

@@ -2,4 +2,38 @@
 title: "Building Firmware for the Custom LCD"
 linkTitle: "Custom LCD"
 ---
-This is a placeholder psge; more documentation to follow.
+**TL;DR: If you are upgrading an existing Sensor Watch or Sensor Watch Lite board, you will need to re-flash your board with new firmware to take advantage of the new display.** [Firmware images are linked below.](#flashing-pre-built-firmware)
+
+All variants of Sensor Watch — Sensor Watch Pro, Sensor Watch Lite and both the green and blue versions of the original Sensor Watch board — have the ability to drive either the classic Casio LCD, or the new custom LCD designed by Oddly Specific Objects and available from Crowd Supply, but you need a firmware image targeted to your display. Your two options are to download a pre-built firmware image, or to build your own custom firmware with support for the custom LCD. 
+
+Boards ordered on Crowd Supply ship with a special firmware image that can support both displays, but we still highly recommend replacing that firmware with a version targeted to your chosen display.
+
+### Flashing Pre-Built Firmware
+
+For the sake of convenience, a pre-built firmware image for the standard Second Movement firmware is provided here. Select the firmware image that matches your board variant and your choice of LCD:
+
+* Sensor Watch Lite
+    1. [Original Casio display](/docs/firmware/download/standard_red_classic.uf2)
+    1. [New Custom LCD](/docs/firmware/download/standard_red_custom.uf2)
+* Sensor Watch Pro
+    1. [Original Casio display](/docs/firmware/download/standard_pro_classic.uf2)
+    1. [New Custom LCD](/docs/firmware/download/standard_pro_custom.uf2)
+* Sensor Watch Classic (green boards)
+    1. [Original Casio display](/docs/firmware/download/standard_green_classic.uf2)
+    1. [New Custom LCD](/docs/firmware/download/standard_green_custom.uf2)
+* Limited Edition Sensor Watch (blue boards)
+    1. [Original Casio display](/docs/firmware/download/standard_blue_classic.uf2)
+    1. [New Custom LCD](/docs/firmware/download/standard_blue_custom.uf2)
+
+More custom firmware images are available on the [Prebuilt Alternative Firmware](/docs/firmware/prebuilt/) page.
+
+### Building Custom Firmware
+
+If you want to use watch faces not available in the prebuilt images, uou can also [clone the Second Movement repository](https://github.com/joeycastillo/second-movement) and 
+[build your own firmware image](/docs/movement/building/). Make sure to add `DISPLAY=classic` or `DISPLAY=custom` as a flag to make; this will ensure that the built firmware image targets the display you have installed.
+
+### Second Movement Builder
+
+We are working on a web-based GUI for point-and-click generation of Sensor Watch firmware images.
+
+Watch this space!