Building and Modifying Valetudo

These are instructions for quickly setting up an environment where you can build and modify Valetudo according to your needs.

It shows a complete setup from scratch, on a freshly installed Ubuntu 18.04 system.

Your mileage may vary if you’re using a different OS, or if you start from a different setup. However, it should be rather easy to understand the steps, and to adapt them to your situation.

1. Install prerequisites

Install git and npm:

sudo apt install git npm

2. Clone the repository

cd ~
git clone https://github.com/Hypfer/Valetudo.git

3. Install dependencies

cd Valetudo
npm install

4. Create default configuration by running valetudo

npm run start
CTRL + C

On first launch, Valetudo will generate a default config file at the location set in the VALETUDO_CONFIG_PATH environment variable and automatically shut down, because it won’t be able to autodetect the robot it is running on.

Something like VALETUDO_CONFIG_PATH=./local/valetudo_config.json should work fine.

Therefore, you need to edit the newly created file in order to be able to talk with your robot from your dev host:

{
  "embedded": false,
  "robot": {
    "implementation": "RoborockS5ValetudoRobot",
    "implementationSpecificConfig": {
      "ip": "192.168.xxx.robotIp",
      "deviceId": 12345678,
      "cloudSecret": "aBcdEfgh",
      "localSecret": "123456788989074560w34aaffasf",
      "mapUploadUrlPrefix": "http://192.168.xxx.valetudoIp:8079"
    }
  }
}

Setting embedded to false disables all functionality that assumes that Valetudo runs on the robot such as some file-system related things.

For a list of possible values for implementation consult https://github.com/Hypfer/Valetudo/blob/master/lib/core/ValetudoRobotFactory.js#L57

The config key robot specifies the ValetudoRobot implementation Valetudo should use as well as some implementation-specific configuration parameters. When running on the robot itself, these are usually detected automatically.

Vendor	Config Key	Robot Location	Robot Key
Roborock	valetudo.conf	/mnt/data/valetudo/valetudo_config.json
	deviceId	/mnt/default/device.conf	did
	cloudSecret	/mnt/default/device.conf	key
	localSecret	/mnt/data/miio/device.token
Viomi	valetudo.conf	/mnt/data/valetudo/config.json
	deviceId	/etc/miio/device.conf	did
	cloudSecret	/etc/miio/device.conf	key
	localSecret	/etc/miio/device.token
Dreame	valetudo.conf	/data/valetudo_config.json
	deviceId	/data/config/miio/device.conf	did
	cloudSecret	/data/config/miio/device.conf	key
	localSecret	/data/config/miio/device.token

Since deviceId and cloudSecret are static, you’ll only need to do that once. Note that localSecret might change when you’re switching wireless networks etc.

It’s possible to specify both secrets as either hex or a regular string.

Please note that Valetudo will replace the configuration with a default one if it fails to parse it correctly.

The logfile is also configured via an environment variable: VALETUDO_LOG_PATH and defaults to os.tmpdir() if unset.
To just use stdout in your dev setup, you’ll need

VALETUDO_LOG_PATH=/dev/null for linux/osx and

VALETUDO_LOG_PATH=\\\\.\\NUL for windows hosts.
That’s four backslash dot two backslash NUL if it’s not displayed correctly due to escaping issues.

5. Verify configuration and run

npm run start

If your configuration is correct, Valetudo should now be working on your development host.

6. Enable dummycloud connection

The dummycloud is implemented by Valetudo, but the robot needs to connect to it. To enable this mode (which is required for many of the functionalities such as map uploading):

1. Install Valetudo on the robot (if you haven’t done so already)
2. ssh root@vacuum, then stop Valetudo.
3. Edit the valetudo.conf on the robot and point robot.implementationSpecificConfig.dummycloudIp to your local development host. This will instruct the Valetudo process on the robot to tell the miio_client app that it should try to connect to your development host instead.
4. reboot

7. Code!

Modify the source code according to your needs, and restart the server as needed – you can always run it as:

npm run start

8. Build and install on the device

When you’re done with your modifications, here’s how to build the executable for the robot:

npm run build

The output file valetudo is a binary file that you can copy to the device:

scp ./valetudo root@vacuum:/usr/local/bin/

Once you’re that far, you hopefully don’t need any further advice.