added more detail to firmware update procedure #docs

docs/tutorials/firmware-update/beta-unit-firmware-update.md

@@ -1,12 +1,48 @@
-# Pyr0-piezo Beta Unit Firmware Update
+# Pyr0-piezo Beta Unit Firmware Update Procedure
+
+## Utilizing the Pyr0-Piezo AVR Programming Jig
+
+### Physical Construction of the Jig
+
+The AVR Programming jig consists of several components:
+
+- A PCB with USB-UART bridge (or a TTL header)
+- A second PCB with ICSP header and Diag Headers installed
+- 5MM 3D Printed Standoffs between the two boards
+- 0.65mm Diameter Pogo Pins that span the two PCB's
+- The three main body components of the jig
+- The hinge joints, and clamp
+- Hardware:
+  - 4x M3 16mm Bolts
+  - 5x M3 22mm Bolts
+
+Assembly animation:
+
+<div style='position:relative; padding-bottom:calc(75.00% + 44px)'><iframe src='https://gfycat.com/ifr/AnimatedInsistentChimpanzee' frameborder='0' scrolling='no' width='100%' height='100%' style='position:absolute;top:0;left:0;' allowfullscreen></iframe></div>
+
+## Uploading Firmware Without a Jig
+
+Uploading firmware without a Pyr0-Piezo AVR Programming Jig requires soldering to the test pads on the bottom of the Sensor's PCB:
+
+![](../../assets/images/board-images/easy-piezi/pp-v2.1.2-uart-wiring.png)
+
+To utilize the UART's in-built auto-reset function, a 10k resistor and a small capacitor must be added to the reset wire in the configuration below:
+
+<object data="../../other/USB-UART-Wiring-Example.pdf" type="application/pdf" width="100%" height="450px">
+    <embed src="../../other/USB-UART-Wiring-Example.pdf">
+        <p>This browser does not support PDFs. Please download the PDF to view it: <a href="../../other/USB-UART-Wiring-Example.pdf">Download PDF</a>.</p>
+    </embed>
+</object>
+
+## Firmware Upload Procedure
 
 The firmware for this project can be updated using one of three methods, VS Code, Arduino IDE, or avrdude.
 
 Please be sure you've already [wired up your sensor's UART port](../../schematics/other/uart-programmer-wiring.md)
 
-## VS Code (Preferred Application)
+### VS Code (Preferred Application)
 
-### Installing dependencies
+#### Installing dependencies
 
 1. Install [VS Code from Micosoft's official page](https://code.visualstudio.com/download)
 2. Use the "Extensions" menu to install PlatformIO.
@@ -16,8 +52,9 @@ Please be sure you've already [wired up your sensor's UART port](../../schematic
     - Markdown Preview Enhanced
     - C/C++
     - C++ Intellisense
+    - Python
 
-### Configuration
+#### Configuration
 
 1. In PIO Home, open the firmware folder:
     - `~/pyr0piezo/firmware/AVR-Source/Pyr0_Piezo_sensor_v2.x.x`
@@ -26,19 +63,33 @@ Please be sure you've already [wired up your sensor's UART port](../../schematic
     - Right click on `develop` and select "Switch to Branch"
     - Back at the top of the "Repositories" menu, hover the mouse over `Pyr0_Piezo_Sensor_v2.x.x` and click first on `fetch`, then on `pull`
 
-### Upload
+#### Upload
 
 1. Make any desired adjustments to default values in `src/pP_config.h`
 2. Click the "PlatformIO: Upload" button found in the bottom bar of the VS Code window
 3. Verify Serial connection by opening the Serial Monitor and typing `CONFIG` or `STATE`. You should get a response.
 
-## Arduino IDE
+### Arduino IDE
 
 1. Install [Arduino IDE from Arduino's official page](https://www.arduino.cc/en/main/software)
 2. Under File > Preferences > Additional Board Manager URL's, Add:
     - `https://mcudude.github.io/MiniCore/package_MCUdude_MiniCore_index.json`
 
-## avrdude
+### AVRDUDESS
+
+#### Windows (Only)
+
+AVRDUDESS is a GUI version of the avrdude application used for flashing firmware to AVR based MCU's, [and can be found here](https://blog.zakkemble.net/avrdudess-a-gui-for-avrdude/)
+
+After installing AVRDUDESS, and opening it, follow the image below with the settings here:
+
+- **A.** Choose the COM port of your UART programmer from the pulldown menu
+- **B.** Ensure "Erase Flash and EEPROM" is checked
+- **C.** From the MCU Pulldown, select "Atmega328PB"
+- **D.** Set the Fuse Bits to `E2`, `DF`, `F9` respectively. Leave LB *blank*
+- **E.** Click the Flash button to begin the upload process
+
+### avrdude
 
 #### Windows
 
@@ -46,7 +97,7 @@ Please be sure you've already [wired up your sensor's UART port](../../schematic
     - [Windows Subsystem for Linux]
     - [CygWin]
     - [Mingw64]
-    - [Git Bash (Comes bundled with git)]
+    - [Git Bash (Comes bundled with Git for Windows)]
 2. Download the [avrdude binaries]
 3. Extract the binaries somewhere your terminal can find them