Update README.md

Author: wang-edward

README.md

@@ -1,26 +1,28 @@
-Tube Furnace used at the Waterloo Hacker Fab
+# phoenix
 
-# Installation
+Phoenix is a tube furnace used for thermal oxidation and annealing processes.
 
-1. Install Arduino libraries
-```
-arduino-cli core install arduino:avr
-arduino-cli lib update-index
-arduino-cli lib install "Adafruit MAX31856 Library"
-arduino-cli lib install "LiquidCrystal I2C"
-arduino-cli lib install "RunningAverage"
-```
+It uses PID control to follow custom temperature profiles and works on both MicroPython on the ESP32 and a simulated Python desktop environment.
 
-2. Build
-```
-arduino-cli compile \
-    --fqbn arduino:avr:uno \
-    --libraries TubeFurnace/libraries \
-    TubeFurnace
-```
+<table>
+  <tr>
+    <td>
+      <img src="https://github.com/user-attachments/assets/3d76382d-c257-4131-b17b-15bba04e13a1" width="300"><br>
+      <sub>Fig 1. Tube furnace in action</sub>
+    </td>
+    <td>
+      <img src="https://github.com/user-attachments/assets/71b93478-83d2-484c-b73c-5136b2d3e025" width="300"><br>
+      <sub>Fig 2. Simulated PID following a heat profile</sub>
+    </td>
+    <td>
+      <img src="https://github.com/user-attachments/assets/b7655219-a86a-4da7-9037-93fa70059ff8" width="300"><br>
+      <sub>Fig 3. Controlled ramp rates</sub>
+    </td>
+  </tr>
+</table>
 
 # Python setup
-```
+```bash
 python3 -m venv .venv
 source .venv/bin/activate
 pip install -r requirements.txt
@@ -29,12 +31,12 @@ pip install -r requirements.txt
 # Micropython setup
 
 Install micropython
-```
+```bash
 https://github.com/micropython/micropython/tree/master/ports/unix#readme
 ```
 
 Install `typing`
-```
+```bash
 micropython -m mip install github:josverl/micropython-stubs/mip/typing.mpy
 ```
 
@@ -46,3 +48,22 @@ git clone https://github.com/dhrosa/udataclasses.git tmp
 mv tmp/src/udataclasses .
 rm -rf tmp
 ```
+
+# Arduino setup (legacy)
+
+1. Install Arduino libraries
+```
+arduino-cli core install arduino:avr
+arduino-cli lib update-index
+arduino-cli lib install "Adafruit MAX31856 Library"
+arduino-cli lib install "LiquidCrystal I2C"
+arduino-cli lib install "RunningAverage"
+```
+
+2. Build
+```
+arduino-cli compile \
+    --fqbn arduino:avr:uno \
+    --libraries TubeFurnace/libraries \
+    TubeFurnace
+```