SendoSendo
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Install Sendo

Download the Windows build, enable Fire TV control over ADB, connect Spotify with the correct OAuth credentials, select the intended target device, and keep Sendo available from the tray for repeatable media actions.

Download NSISDownload MSI
NSISMSIv0.1.0
WindowsADBFire TVSpotify Connect

Quick read

Runtime
Windows + adb
TV target
Fire TV with ADB debugging
Flow
Install, connect, select, test

Sendo is local-first. There is no cloud setup layer between install and device control, so Windows, ADB, Fire TV, and Spotify setup all happen on your machine.

01

Windows

02

adb available from a new PowerShell window

03

Fire TV with ADB debugging enabled and authorized

04

Spotify Premium plus developer app credentials

05

Explicit Spotify Connect target selected in Sendo

Requirements

Before first run

Make sure the machine, the TV, and the target playback path are set up before the first action.

What to confirm

The install itself is straightforward. Most first-run failures come from missing ADB, Fire TV debugging not enabled or not authorized, Spotify redirect credentials not matching, or selecting the wrong Spotify device.

If those three things are correct, the rest of the setup is usually quick.

Recommended path

  1. 01Install Sendo and keep adb available in PATH.
  2. 02Enable Fire TV debugging and approve the first connection prompt on the TV.
  3. 03Authenticate Spotify with the developer app credentials and explicitly select a target.

Setup

First-run flow

From installation to first successful media control, this is the expected flow.

  1. 01
    >

    Install Sendo on Windows and confirm adb works from a new PowerShell window.

  2. 02
    >

    Enable ADB debugging on your Fire TV and approve the first connection prompt.

  3. 03
    >

    Add the Fire TV IP address in Sendo, then test the ADB connection.

  4. 04
    >

    Connect Spotify with developer app credentials and the expected redirect URL.

  5. 05
    >

    Select the exact Spotify Connect target device before running an action.

  6. 06
    >

    Run Start Spotify on TV and save it as a shortcut if you want.

Troubleshooting

Common setup failures

These are the setup failures you are most likely to hit first.

01

ADB not connected

  • -Make sure the TV is on the same network as this machine.
  • -Enable Fire TV ADB debugging before testing the connection.
  • -Accept the debugging authorization prompt on the TV the first time the Windows machine connects.
  • -Confirm adb is available in PATH.
02

Wrong Spotify device

  • -Open the Spotify page inside Sendo.
  • -Select the explicit playback target you actually want.
  • -Do not rely on whatever Spotify marks as the current device.
03

Spotify auth fails

  • -Open the Spotify Developer dashboard.
  • -Confirm the client ID, client secret, and redirect URL match the values entered in Sendo.
  • -Run authentication again from the Spotify page.
04

Auth expired

  • -Go to the Spotify page in Sendo.
  • -Run re-authentication and refresh the cached token state.
05

Startup and tray behavior

  • -Open the General page in the desktop app.
  • -Adjust launch-at-startup and start-minimized-to-tray behavior there.