# elemprod/lv5250 architecture

> Architecture diagram of the GitHub repository elemprod/lv5250, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-26). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/elemprod/lv5250
- Repository: https://github.com/elemprod/lv5250

## Overview

lv5250 is a Python control library for the LabVolt 5250 robotic arm. Users can operate it through the included Pygame remote or Tkinter arm-port examples; the runtime manager turns requested motion and control operations into queued serial commands, while processing arm responses into current state. The model separates commanded and observed axis positions, with configured count/angle conversion and motion limits. The excerpts support the manager/transport callback and state-update relationships shown; the example source and some manager implementation are unsampled, so their internal wiring is not expanded.

Main entry points: [`lv5250/arm_manager.py`](https://github.com/elemprod/lv5250/blob/main/lv5250/arm_manager.py) (Arm Manager), [`lv5250/axises.py`](https://github.com/elemprod/lv5250/blob/main/lv5250/axises.py) (Axis Collection), [`lv5250/arm_uart.py`](https://github.com/elemprod/lv5250/blob/main/lv5250/arm_uart.py) (UART Queue & Callbacks), [`examples/pygame/arm_remote/arm_remote.py`](https://github.com/elemprod/lv5250/blob/main/examples/pygame/arm_remote/arm_remote.py) (Pygame Remote)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_interfaces["Example Interfaces"]
  node_pygame["Pygame Remote<br/>[arm_remote.py]"]
  node_tkinter["Tkinter Port<br/>[arm_port.py]"]
end

subgraph group_control["Arm Control"]
  node_manager["Arm Manager<br/>[arm_manager.py]"]
  node_motion["Motion Commands<br/>[arm_manager.py]"]
  node_stateops["Status &amp; Home<br/>[arm_manager.py]"]
end

subgraph group_model["Arm Model"]
  node_arm["Arm State<br/>[arm.py]"]
  node_axes["Axis Collection<br/>[axises.py]"]
  node_axis["Axis Conversion &amp; Limits<br/>[axis.py]"]
  node_config["Arm Configuration<br/>[arm_config.py]"]
end

subgraph group_transport["Serial Transport"]
  node_uart["UART Queue &amp; Callbacks<br/>[arm_uart.py]"]
  node_serial["Serial Port<br/>[arm_uart.py]"]
end

node_user(("Operator"))
node_robot(("LabVolt Arm"))

node_user -->|"operates"| node_pygame
node_user -->|"operates"| node_tkinter
node_pygame -.->|"requests control"| node_manager
node_tkinter -.->|"requests control"| node_manager
node_manager -->|"exposes"| node_motion
node_manager -->|"exposes"| node_stateops
node_manager -->|"enqueues commands"| node_uart
node_uart -->|"reads and writes"| node_serial
node_serial -->|"exchanges commands"| node_robot
node_robot -->|"returns responses"| node_serial
node_uart -->|"invokes callbacks"| node_manager
node_manager -->|"updates state"| node_arm
node_arm -->|"holds positions"| node_axes
node_axes -->|"creates axes"| node_axis
node_axes -->|"uses constants"| node_config
node_axis -.->|"uses limits"| node_config

click node_pygame "https://github.com/elemprod/lv5250/blob/main/examples/pygame/arm_remote/arm_remote.py"
click node_tkinter "https://github.com/elemprod/lv5250/blob/main/examples/tkinter/arm_port/arm_port.py"
click node_manager "https://github.com/elemprod/lv5250/blob/main/lv5250/arm_manager.py"
click node_motion "https://github.com/elemprod/lv5250/blob/main/lv5250/arm_manager.py"
click node_stateops "https://github.com/elemprod/lv5250/blob/main/lv5250/arm_manager.py"
click node_arm "https://github.com/elemprod/lv5250/blob/main/lv5250/arm.py"
click node_axes "https://github.com/elemprod/lv5250/blob/main/lv5250/axises.py"
click node_axis "https://github.com/elemprod/lv5250/blob/main/lv5250/axis.py"
click node_config "https://github.com/elemprod/lv5250/blob/main/lv5250/arm_config.py"
click node_uart "https://github.com/elemprod/lv5250/blob/main/lv5250/arm_uart.py"
click node_serial "https://github.com/elemprod/lv5250/blob/main/lv5250/arm_uart.py"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_pygame,node_tkinter toneBlue
class node_manager,node_motion,node_stateops toneAmber
class node_arm,node_axes,node_axis,node_config toneMint
class node_uart,node_serial toneRose
class node_user,node_robot toneIndigo
```

## Components

### Example Interfaces

- [Pygame Remote](https://github.com/elemprod/lv5250/blob/main/examples/pygame/arm_remote/arm_remote.py): `examples/pygame/arm_remote/arm_remote.py`
- [Tkinter Port](https://github.com/elemprod/lv5250/blob/main/examples/tkinter/arm_port/arm_port.py): `examples/tkinter/arm_port/arm_port.py`

### Arm Control

- [Arm Manager](https://github.com/elemprod/lv5250/blob/main/lv5250/arm_manager.py): `lv5250/arm_manager.py`
- [Motion Commands](https://github.com/elemprod/lv5250/blob/main/lv5250/arm_manager.py): `lv5250/arm_manager.py`
- [Status & Home](https://github.com/elemprod/lv5250/blob/main/lv5250/arm_manager.py): `lv5250/arm_manager.py`

### Arm Model

- [Arm State](https://github.com/elemprod/lv5250/blob/main/lv5250/arm.py): `lv5250/arm.py`
- [Axis Collection](https://github.com/elemprod/lv5250/blob/main/lv5250/axises.py): `lv5250/axises.py`
- [Axis Conversion & Limits](https://github.com/elemprod/lv5250/blob/main/lv5250/axis.py): `lv5250/axis.py`
- [Arm Configuration](https://github.com/elemprod/lv5250/blob/main/lv5250/arm_config.py): `lv5250/arm_config.py`

### Serial Transport

- [UART Queue & Callbacks](https://github.com/elemprod/lv5250/blob/main/lv5250/arm_uart.py): `lv5250/arm_uart.py`
- [Serial Port](https://github.com/elemprod/lv5250/blob/main/lv5250/arm_uart.py): `lv5250/arm_uart.py`

### Other components

- **Operator**
- **LabVolt Arm**

## Connections

- Operator → Pygame Remote: operates
- Operator → Tkinter Port: operates
- Pygame Remote → Arm Manager: requests control
- Tkinter Port → Arm Manager: requests control
- Arm Manager → Motion Commands: exposes
- Arm Manager → Status & Home: exposes
- Arm Manager → UART Queue & Callbacks: enqueues commands
- UART Queue & Callbacks → Serial Port: reads and writes
- Serial Port → LabVolt Arm: exchanges commands
- LabVolt Arm → Serial Port: returns responses
- UART Queue & Callbacks → Arm Manager: invokes callbacks
- Arm Manager → Arm State: updates state
- Arm State → Axis Collection: holds positions
- Axis Collection → Axis Conversion & Limits: creates axes
- Axis Collection → Arm Configuration: uses constants
- Axis Conversion & Limits → Arm Configuration: uses limits