TapHome

Shelly Plug S

Packet Parser → HTTP
Submitted by
Last updated: 10. 2026

This device supports mDNS

Instead of using an IP address, you can reach the device at:

shellyplug-s-{MAC}.local

Replace {MAC} with your device's MAC address (uppercase, no colons).

TapHome supports mDNS — using a hostname is more reliable than a static IP.

Shelly Plug S

The Shelly Plug S is a compact Wi-Fi smart plug with built-in power metering. It plugs directly into a wall outlet and can switch loads up to 10 A (2300 W at 230 V). TapHome communicates with the device over HTTP on the local network — no cloud connection is required.

The template provides on/off relay control, an energy meter that reads real-time power consumption and cumulative energy usage, and internal temperature monitoring.

Configuration

The Shelly Plug S communicates over HTTP on port 80. No special protocol setup is required — enter the device’s IP address as the connection endpoint in TapHome.

Device capabilities

Relay control

The template exposes the plug relay as a switch device. The relay state is read from /settings/relay/0 (ison field) and controlled via the /relay/0 endpoint with turn=on or turn=off. The poll interval for the switch is 1 second.

The template reads the switch state from /settings/relay/0 (persistent configuration) rather than /status (live state). Both return the same value under normal conditions, but /settings may have slightly stale data after rapid toggling.

Power metering

The built-in energy meter reads two values from the /meter/0 endpoint:

  • Real-time power — power field reported in watts, converted to kW by the template
  • Total consumption — total field reported in watt-minutes, converted to kWh by the template

The meter is read-only and updates every 15 seconds (configurable poll interval).

Temperature monitoring

The Switch device includes a service attribute that reads the internal temperature of the plug from the /status endpoint. This allows monitoring the device temperature directly in TapHome without additional configuration.

Additional capabilities

The Shelly Plug S API also exposes an overtemperature flag (automatic relay shutdown at ~95 °C), LED control, configurable overpower protection threshold (default 2300 W), auto-off timer, WiFi signal strength (RSSI), and a device reboot endpoint. These can be added in a future template update.

Troubleshooting

Device not responding
  1. Verify the Shelly is connected to Wi-Fi and has a valid IP address
  2. Try using the mDNS hostname (shellyplug-s-AABBCCDDEE.local) instead of the IP address — the IP may have changed after a DHCP renewal
  3. Open http://{device-ip}/shelly in a browser — if it responds, the device is reachable
  4. Check that TapHome CCU and Shelly are on the same network / VLAN
Power readings show zero
  1. Confirm the appliance plugged into the Shelly Plug S is turned on
  2. Check that the relay is switched on — the meter only reads when current flows
  3. Poll /meter/0 manually and verify the power field returns a non-zero value
Overtemperature shutdown

The Shelly Plug S has internal thermal protection. If the device temperature exceeds ~95 °C, the relay automatically shuts off. Ensure adequate ventilation around the plug, especially when switching high-wattage appliances.

Gen1 Shelly devices support only 2 concurrent HTTP connections. If TapHome and another system (e.g., Home Assistant) poll the same device simultaneously, communication may become unreliable. If another system polls the device as well, increase the template poll intervals (1 s for the switch, 15 s for the meter by default) to reduce connection contention.

How to install in TapHome

Prerequisites

  • Shelly device installed and powered on
  • Local Wi-Fi network (2.4 GHz)
  • TapHome CCU on the same network

Step 1 — Connect Shelly to Wi-Fi

Option A — Shelly app (recommended):

  1. Download the Shelly app (iOS / Android)
  2. Tap + → Add Device and follow the Bluetooth pairing wizard
  3. Enter your Wi-Fi credentials when prompted

Option B — AP mode (no app):

  1. On first power-up the device creates a hotspot: ShellyXXX-AABBCCDDEE
  2. Connect your phone/PC to that hotspot
  3. Open http://192.168.33.1 → Internet & Security → Wi-Fi Mode - Client
  4. Enter SSID and password → Save

Shelly only supports 2.4 GHz networks. 5 GHz networks will not appear in the scan.

Step 2 — Find the device address

Shelly Gen1 devices support mDNS (Zeroconf). You can reach the device using a hostname instead of an IP address:

1

shelly<model>-<MAC>.local

For example: shelly1pm-AABBCCDDEE.local (MAC address in uppercase hex, no colons).

Recommended: use the TapHome IP Scanner. Open the TapHome app and use the IP Scanner (Settings → Network → Scan). The scanner will discover devices on your network and show both the IP address and the mDNS hostname. Use the hostname instead of the IP address for a more reliable connection — it stays the same even if the device’s IP changes after a router reboot.

Alternative methods to find the IP address:

  • Shelly app: Device detail → Device info → IP address
  • Shelly web UI: Connect to the device AP before Wi-Fi setup — the IP is shown after saving
  • Router DHCP table: Look for a hostname like shelly1pm-AABBCCDDEE

Step 3 — Configure in TapHome

  1. In TapHome, add a new Packet Parser (HTTP) module
  2. Address: enter the mDNS hostname (e.g., shelly1pm-AABBCCDDEE.local) or IP address from Step 2
  3. Port: 80 (default, no change needed)
  4. Import the template — TapHome will poll /status to read device state

HTTP authentication is disabled by default on Shelly devices. If you have enabled login protection, TapHome does not support HTTP Basic Auth at this time — keep auth disabled for TapHome integration.

Available devices

Shelly Plug S Module
Custom Variables
Electric Meter Electricity Meter Read-only

Power consumption and energy metering — instantaneous power (kW) and cumulative energy (kWh)

numeric Unit: kW / kWh

Electric Meter

Read total consumption
# Simple HTTP Request:
VAR response := SENDHTTPREQUEST("/meter/0");
IF response.IsSuccess
 VAR content := response.Content;
 VAR responseHeaders := response.Headers;
 return(PARSEJSON(content,"total")/60000);
ELSE
 ADDERROR(response.StatusCode + " (" + response.ReasonPhrase + ")");
 RETURN(NaN);
END
#
# Set Http request method, body and headers
# VAR response := SENDHTTPREQUEST("/example/getValue", "GET", "some data", "header1:value1", "header2:value2", ...);
# OR
# VAR request := HTTPREQUEST("/example/getValue", "POST", "some data");
# request.headers := { "header1:value1", "header2:value2", ...};
# request.method := "GET";
# request.data := null;
# VAR response := SENDHTTPREQUEST(request);
#
#
# Send TCP, UDP data:
# VAR data1 := BYTECOLLECTION("0a bb ea df 01");
# SENDDATA(data1);
# VAR data2 := "{\"name\":\"John\", \"age\":32}";
# SENDDATA(data2);
# VAR data3 := TOBYTES("{\"name\":\"John\", \"age\":32}", "iso-8859-1");
# SENDDATA(data3);
# Process received TCP or UDP data and set device values in the Listener script
#
#
# Download data from FTP:
# FTPDOWNLOAD("filePath");
Read demand
VAR response := SENDHTTPREQUEST("/meter/0");
IF response.IsSuccess
 VAR content := response.Content;
 VAR responseHeaders := response.Headers;
 RETURN(PARSEJSON(content, "power")/1000);
END;


# Simple HTTP Request:
# VAR response := SENDHTTPREQUEST("/example/getValue");
# IF response.IsSuccess
#  VAR content := response.Content;
#  VAR responseHeaders := response.Headers;
#  RETURN(PARSEXML(content, "//element1/value1"));
# ELSE
#  ADDERROR(response.StatusCode + " (" + response.ReasonPhrase + ")");
#  RETURN(NaN);
# END
#
# Set Http request method, body and headers
# VAR response := SENDHTTPREQUEST("/example/getValue", "GET", "some data", "header1:value1", "header2:value2", ...);
# OR
# VAR request := HTTPREQUEST("/example/getValue", "POST", "some data");
# request.headers := { "header1:value1", "header2:value2", ...};
# request.method := "GET";
# request.data := null;
# VAR response := SENDHTTPREQUEST(request);
#
#
# Send TCP, UDP data:
# VAR data1 := BYTECOLLECTION("0a bb ea df 01");
# SENDDATA(data1);
# VAR data2 := "{\"name\":\"John\", \"age\":32}";
# SENDDATA(data2);
# VAR data3 := TOBYTES("{\"name\":\"John\", \"age\":32}", "iso-8859-1");
# SENDDATA(data3);
# Process received TCP or UDP data and set device values in the Listener script
#
#
# Download data from FTP:
# FTPDOWNLOAD("filePath");
Switch Switch
boolean
Values / States: ON · OFF

Switch

Read switch state
VAR response := SENDHTTPREQUEST("/settings/relay/0");
IF response.IsSuccess
 VAR content := response.Content;
 VAR responseHeaders := response.Headers;
 return(PARSEJSON(content,"ison"));
ELSE
 ADDERROR(response.StatusCode + " (" + response.ReasonPhrase + ")");
 RETURN(NaN);
END
#
# Set Http request method, body and headers
# VAR response := SENDHTTPREQUEST("/example/getValue", "GET", "some data", "header1:value1", "header2:value2", ...);
# OR
# VAR request := HTTPREQUEST("/example/getValue", "POST", "some data");
# request.headers := { "header1:value1", "header2:value2", ...};
# request.method := "GET";
# request.data := null;
# VAR response := SENDHTTPREQUEST(request);
#
#
# Send TCP, UDP data:
# VAR data1 := BYTECOLLECTION("0a bb ea df 01");
# SENDDATA(data1);
# VAR data2 := "{\"name\":\"John\", \"age\":32}";
# SENDDATA(data2);
# VAR data3 := TOBYTES("{\"name\":\"John\", \"age\":32}", "iso-8859-1");
# SENDDATA(data3);
# Process received TCP or UDP data and set device values in the Listener script
#
#
# Download data from FTP:
# FTPDOWNLOAD("filePath");
Write switch state
# Simple HTTP Request:
#VAR response := SENDHTTPREQUEST("/relay/0?turn=toggle");
VAR response := SENDHTTPREQUEST("/relay/0?turn="+ if(St = 1, "on","off"));
IF response.IsSuccess = false
 ADDERROR(response.StatusCode);
END
# Set Http request method, body and headers
# VAR response := SENDHTTPREQUEST("/example/setValue", "GET", "value=" + St, "header1:value1", "header2:value2", ...);\r
# Or VAR request := HTTPREQUEST("/example/setValue");
# request.Method := "PUT";
# VAR response := SENDHTTPREQUEST(request);
#r
#
# Send TCP, UDP data:
# VAR data1 := "{\"name\":\"John\", \"age\":" + St + "}";
# SENDDATA(data1);
# VAR data2 := TOBYTES("{\"name\":\"John\", \"age\":" + St + "}", "iso-8859-1");
# SENDDATA(data2);
# You can process received TCP or UDP data in the Listener script
#
#
# Upload data to FTP:
# FTPUPLOAD("filePath", "somedata=" + St, "write"); # use "append" mode to append data to existing file
Service Attributes
Temperature
VAR response := SENDHTTPREQUEST("/status");
IF response.IsSuccess
 VAR content := response.Content;
 VAR responseHeaders := response.Headers;
 RETURN(PARSEJSON(content, "temperature"));
END;
Connection: Packet Parser → HTTP • Hostname: shellyplug-s-{MAC}.local
Possible improvements (7)
  • Live relay state — Template reads from /settings/relay/0 instead of /status — /status has real-time state
  • Overtemperature flag — Boolean flag in /status, triggers automatic relay shutdown at ~95°C
  • LED control — Enable/disable status LED via settings endpoint
  • Overpower protection threshold — Configurable maximum power limit (default 2300W), could be a service action
  • Auto-off timer — Auto-off timer in seconds, could be added as switch parameter
  • WiFi signal strength — WiFi RSSI in dBm, available in /status response
  • Reboot — Device reboot endpoint, could be added as service action

Sources

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