Create Customizable Control Interfaces for Bluetooth Low Energy, WebSocket, MQTT, TCP, and UDP Protocols with Simple Drag-and-Drop Functionality.

Key Features:

1. Drag-and-Drop Control Pad Creation
   Design your control pads by dragging and dropping components like buttons, sliders, and switches.

2. Multi-Protocol Support and Seamless Server Connections
   Easily configure your control pad to act as a client for network protocols such as WebSocket, MQTT, TCP, and UDP. Once configured, the control pad can connect to servers using any of these protocols. Interact with your control pad’s components—like buttons, switches, and sliders—to send real-time commands directly to the connected server (or BLE client) and process those commands at server (or BLE Client) side

How It Works (4 steps)

Step 1: Create a Control Pad

Start by creating a new control pad. Provide a unique name to identify your control pad.

Step 2: Design Your Control Pad

After creating the control pad, click on the Build icon and use the drag-and-drop interface to add components like switches, buttons, and sliders etc.

Assign a unique ID to each component. This ID will be sent to the server during interactions.

Step 3: Configure Connection Settings

Tap 'Settings, choose a connection type (TCP, UDP, WebSocket, or MQTT), enter the server address and port. You can switch between connection types anytime

Step 4: Connect and Interact

a. Click on the Play icon to start interacting with your control pad.
b. Tap the Connect button in the bottom-right corner to establish a connection with the server.

Reading Interactions at the Server Side

When users interact with the control pad, JSON-formatted messages are generated based on the type of component used. These JSON messages enable servers to understand and process interactions sent from the control pad. Below are the formats and details for each interaction:

---

Switch

Toggling a switch generates the following JSON:

{
  "id": "the id you specified",
  "type": "SWITCH",
  "state": true
}

For Bluetooth LE connections, toggling a switch generates a CSV message in the format: <id>,<state>.

• The state field indicates whether the switch is on (true) or off (false).

---

Button

Pressing or releasing a button generates this JSON:

{
  "id": "the id you specified",
  "type": "BUTTON",
  "state": "PRESS"
}

For Bluetooth LE connections, pressing or releasing a button generates a CSV message in the format: <id>,<state>.

• The state field can have following values:
  • "PRESS": When the button is being pressed (finger on the button).
  • "RELEASE": When the button is released (finger lifted off after pressing).
  • "CLICK": Indicates tap gesture

---

DPAD (Directional Pad)

Pressing or releasing a button on DPAD generates this JSON:

{
  "id": "the id you specified",
  "type": "DPAD",
  "button": "RIGHT",
  "state": "CLICK"
}

For Bluetooth LE connections, pressing or releasing a button on DPAD generates a CSV message in the format: <id>,<button>,<state>.

• The state field can have following values:
  • "PRESS": When the button is being pressed (finger on the button).
  • "RELEASE": When the button is released (finger lifted off after pressing).
  • "CLICK": Indicates tap gesture
• The button field can be "LEFT","RIGHT","UP" or "DOWN"

---

Slider

Dragging the slider thumb generates the following JSON:

{
  "id": "the id you specified",
  "type": "SLIDER",
  "value": 1.4
}

For Bluetooth LE connections, dragging the slider thumb generates a CSV message in the format: <id>,<value>.

• The value field represents the current position of the slider.
• The value is always within the range of the minimum and maximum values specified during the slider's configuration.

---

Testing the connection

You can test the connections with Websocket,TCP, UDP servers and BLE client provided in https://github.com/umer0586/droidpad-python-examples

TODO

1. Bluetooth classic support
2. Attaching sensors to control pads
3. TouchPad

Installlation

Download APK from Release Page