Ewon Flexy Script

A timed Flexy BASIC script that runs directly on the Ewon Flexy 205 gateway. Every 5 minutes it reads all defined device tags, builds a WaterlyConnect JSON payload, and POSTs it to the API. No external server, no middleware — the gateway handles everything on-device.

Open API Reference Download Script

300sDefault poll interval

0External servers needed

BASICFlexy native scripting

Prerequisites

An Ewon Flexy 205 device with Internet connectivity.
Access to the Flexy web interface (for loading BASIC scripts via the BASIC IDE).
Waterly credentials: API token, device ID, and submission URL. Email support@waterly.com to request them.
Outbound HTTPS access from the Flexy to app.waterlyapp.com.

Load the Script

1
Open the Flexy web interface in your browser and navigate to Setup ▸ Scripting ▸ BASIC IDE.
2
Paste the full contents of flexy-basic.txt into the editor.
3
Click Save & Run. The script starts immediately and will fire on the 300-second timer.
4
Optionally enable Autorun so the script restarts automatically after a device reboot.

Configure Credentials

At the top of the SendData routine, replace the placeholder values with your Waterly credentials before saving:

$token$    = "<YOUR_API_TOKEN>"
$deviceId$ = "<YOUR_DEVICE_ID>"
$url$      = "https://app.waterlyapp.com/connect/submit"

Keep your API token private. Do not commit it to Git or share it outside the Flexy device. Use Ewon's built-in user security to restrict script editor access.

How It Works

Timer fires every 300 seconds — TSET 1,300 sets the interval; ONTIMER 1,"Goto SendData" calls the routine.
Timestamp is captured as Flexy system time in Unix seconds via GETSYS PRG,"TIMESEC".
Tag loop iterates over all defined Flexy tags using GETSYS PRG,"NBTAGS", reading name and current value for each.
JSON payload is assembled in-memory and POSTed to WaterlyConnect via REQUESTHTTPX with the required auth headers.
Response handling — the onEvent routine prints the HTTP status code to Flexy diagnostic logs.
Runs at startup as well as on each timer tick — first submission happens immediately when the script is loaded.

Script Structure

//Timer: fires every 300 seconds (5 minutes)
TSET 1,300
ONTIMER 1,"Goto SendData"
GOTO SendData   //also run immediately at startup

SendData:
  $token$    = "<YOUR_API_TOKEN>"
  $deviceId$ = "<YOUR_DEVICE_ID>"
  $url$      = "https://app.waterlyapp.com/connect/submit"

  //Auth headers required by WaterlyConnect
  header$ = "Content-Type=application/json&" +
            "x-waterly-request-type=WaterlyConnect&" +
            "x-waterly-connect-token=" + $token$

  currentTime% = GETSYS PRG, "TIMESEC"   //Unix timestamp

  //Loop all defined tags on this Flexy device
  NumberOfTags% = GETSYS PRG, "NBTAGS"
  FOR a% = 0 TO NumberOfTags% - 1
    SETSYS TAG, "LOAD", -a%
    tagName$  = GETSYS TAG, "Name"
    tagValue$ = GETSYS TAG, "TagValue"
    //... build tagList$ JSON array
  NEXT a%

  //POST the assembled JSON payload
  REQUESTHTTPX $url$, "POST", header$, json$

Files

BASIC script

The complete Flexy BASIC script ready to paste into the BASIC IDE on your device.

Download .txt

Package README

Step-by-step setup, optional conditional group logic, and debugging guidance.

Open README

Source folder

Full source path in the waterlyconnect-docs repository.

View on GitHub ↗