PyThermostat GUI: Fix max_v to only have unit "V"

Since most users do not need to limit load voltage with accuracy of less
than 1mV.

README.md

@@ -71,11 +71,11 @@ openocd -f interface/stlink.cfg -f target/stm32f4x.cfg -c "program target/thumbv
 
 A GUI has been developed for easy configuration and plotting of key parameters.
 
-The Python GUI program is located at pythermostat/pythermostat/thermostat_qt.py, and is developed based on the Python libraries PyQt and PyQtGraph. The GUI can be configured and
+The Python GUI program is located at pythermostat/pythermostat/control_panel.py, and is developed based on the Python libraries PyQt and PyQtGraph. The GUI can be configured and
 launched automatically by running:
 
 ```
-nix run .#thermostat_gui
+nix run .#control_panel
 ```
 
 ## Command Line Usage
@@ -109,7 +109,7 @@ formatted as line-delimited JSON.
 | `output`                                  | Show current output settings                                                  |
 | `output <0/1> max_i_pos <amp>`            | Set maximum positive output current, clamped to [0, 2]                        |
 | `output <0/1> max_i_neg <amp>`            | Set maximum negative output current, clamped to [0, 2]                        |
-| `output <0/1> max_v <volt>`               | Set maximum output voltage, clamped to [0, 4]                                 |
+| `output <0/1> max_v <volt>`               | Set maximum output voltage, clamped to [0, 4.3]                               |
 | `output <0/1> i_set <amp>`                | Disengage PID, set fixed output current, clamped to [-2, 2]                   |
 | `output <0/1> polarity <normal/reversed>` | Set output current polarity, with 'normal' being the front panel polarity     |
 | `output <0/1> pid`                        | Let output current to be controlled by the PID                                |

flake.nix

@@ -81,7 +81,7 @@
 
         dontWrapQtApps = true;
         postFixup = ''
-          wrapQtApp "$out/bin/thermostat_qt"
+          wrapQtApp "$out/bin/thermostat_control_panel"
         '';
       };
 
@@ -106,9 +106,9 @@
         default = thermostat;
       };
 
-      apps.x86_64-linux.thermostat_gui = {
+      apps.x86_64-linux.control_panel = {
         type = "app";
-        program = "${self.packages.x86_64-linux.pythermostat}/bin/thermostat_qt";
+        program = "${pythermostat}/bin/thermostat_control_panel";
       };
 
       hydraJobs = {

pythermostat/pyproject.toml

@@ -20,7 +20,7 @@ dependencies = [
 
 [project.gui-scripts]
 thermostat_plot = "pythermostat.plot:main"
-thermostat_qt = "pythermostat.thermostat_qt:main"
+thermostat_control_panel = "pythermostat.control_panel:main"
 
 [project.scripts]
 thermostat_autotune = "pythermostat.autotune:main"

pythermostat/pythermostat/control_panel.py

@@ -1,4 +1,4 @@
-"""GUI for the Sinara 8451 Thermostat"""
+"""GUI Control Panel for the Sinara 8451 Thermostat"""
 
 import asyncio
 import logging

pythermostat/pythermostat/gui/view/param_tree.json

@@ -115,11 +115,11 @@
                      "type": "float",
                      "value": 0,
                      "step": 0.1,
+                     "decimals": 3,
                      "limits": [
                         0,
-                        5
+                        4.3
                      ],
-                     "siPrefix": true,
                      "suffix": "V",
                      "compactHeight": false,
                      "thermostat:set_param": {

src/channels.rs

@@ -55,7 +55,7 @@ pub const MAX_TEC_I: ElectricCurrent = ElectricCurrent {
 pub const MAX_TEC_V: ElectricPotential = ElectricPotential {
     dimension: PhantomData,
     units: PhantomData,
-    value: 4.0,
+    value: 4.3,
 };
 // DAC chip outputs 0-5v, which is then passed through a resistor dividor to provide 0-3v range
 const DAC_OUT_V_MAX: ElectricPotential = ElectricPotential {