# Sonoff POW Elite 16A

> ESP32-based WiFi smart switch with high-accuracy power monitoring via CSE7766, 16A relay, LCD display, and DIN-rail mounting. Flashable with Tasmota for local energy tracking and home automation.

## Quick Facts

- **Brand:** Sonoff
- **Board Type:** relay-module
- **Price:** ~$19.9
- **Product Readiness:** consumer
- **CPU:** ESP32
- **CPU Architecture:** Xtensa LX6
- **CPU Cores:** 2
- **RAM:** 520KB SRAM
- **Flash:** 4MB
- **Power:** 100-240V AC
- **Operating Voltage:** 3.3V
- **Antenna:** built-in PCB antenna
- **Display:** LCD segment display

## Connectivity

- **Wifi:** 802.11 b/g/n
- **Bluetooth:** BLE 4.2

## Open Source

- **Firmware:** No
- **Schematics:** No
- **PCB Layout:** No

## Compatible Firmware

eWeLink, tasmota

## Use Cases

- energy-monitoring
- power-monitoring
- home-automation
- smart-switch
- electrical-panel

## Components

- **ESP32** (Microcontroller): Dual-core Xtensa LX6 microcontroller at 240MHz with integrated WiFi 802.11 b/g/n and Bluetooth 4.2 — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32_datasheet_en.pdf&ref=openhardware.directory&product=sonoff-pow-elite-16a&source=md-export)
- **16A Relay** (Relay): Single-pole single-throw relay rated for 16A at 240V AC for switching high-power household loads — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fsonoff.tech%2Fproduct%2Fdiy-smart-switches%2Fpow-elite%2F&ref=openhardware.directory&product=sonoff-pow-elite-16a&source=md-export)
- **CSE7766** (Sensor): High-accuracy single-phase energy measurement chip providing voltage, current, active power, and energy readings via UART — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Ffccid.io%2Fpdf.php%3Fid%3D3499946&ref=openhardware.directory&product=sonoff-pow-elite-16a&source=md-export)
- **LCD Display** (Display): Segment LCD panel showing real-time voltage, current, power, and cumulative energy consumption — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fsonoff.tech%2Fproduct%2Fdiy-smart-switches%2Fpow-elite%2F&ref=openhardware.directory&product=sonoff-pow-elite-16a&source=md-export)
- **AC-DC Converter** (Power Supply): Integrated 100-240V AC to 3.3V DC converter powering the ESP32 and relay circuits — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fsonoff.tech%2Fproduct%2Fdiy-smart-switches%2Fpow-elite%2F&ref=openhardware.directory&product=sonoff-pow-elite-16a&source=md-export)

## Protocols

- **WiFi 802.11 b/g/n**
- **Bluetooth 4.2**
- **MQTT**
- **UART**

## Description

# Sonoff POW Elite 16A (POWR316D)

The Sonoff POW Elite is a DIN-rail mountable smart switch with integrated high-accuracy power monitoring. Based on the ESP32, it features an LCD display showing real-time power consumption and supports Tasmota for local energy monitoring.

## Key Features

- **ESP32** dual-core with WiFi and Bluetooth
- **16A/240V relay** for high-power loads
- **Power monitoring** — voltage, current, power, energy with CSE7766 chip
- **LCD display** showing real-time power data
- **DIN-rail mounting** for electrical panel installation
- **Overload protection** with configurable thresholds
- **100-240V AC** input

## Tasmota Compatibility

- Flash via serial header on the PCB
- Power monitoring auto-detected with CSE7766 driver
- Calibration supported for high-accuracy readings
- Energy data persistent across reboots
- MQTT telemetry with configurable reporting interval

## Power Monitoring Capabilities

- **Voltage**: 80-260V AC (±1%)
- **Current**: 0-16A (±1%)
- **Active Power**: 0-3680W
- **Energy**: cumulative kWh counter
- **Power Factor**: real-time PF reading

## Calibration

Tasmota supports two calibration methods:
1. **Quick calibration** with known load (e.g., 100W incandescent bulb)
2. **Fine-tuning** with `VoltageSet`, `CurrentSet`, `PowerSet` commands

## Where to Buy

- [Buy for $19.9](https://openhardware.directory/r?to=https%3A%2F%2Fitead.cc%2Fproduct%2Fsonoff-pow-elite-smart-power-meter-switch%2F&ref=openhardware.directory&product=sonoff-pow-elite-16a&source=md-export)

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Fsonoff.tech%2Fproduct%2Fdiy-smart-switches%2Fpow-elite%2F&ref=openhardware.directory&product=sonoff-pow-elite-16a&source=md-export)
- [wiki](https://openhardware.directory/r?to=https%3A%2F%2Ftemplates.blakadder.com%2Fsonoff_POWR316D.html&ref=openhardware.directory&product=sonoff-pow-elite-16a&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Farendst%2FTasmota&ref=openhardware.directory&product=sonoff-pow-elite-16a&source=md-export)

## Tags

`esp32`, `wifi`, `tasmota`, `power-monitoring`, `energy-meter`, `din-rail`, `smart-switch`, `home-automation`, `sonoff`, `lcd-display`

## Images

![Sonoff POW Elite 16A](https://nbg1.your-objectstorage.com/openhardware-directory/entities/sonoff-pow-elite-16a/987c1f6cc760.png)
![Sonoff POW Elite 16A](https://nbg1.your-objectstorage.com/openhardware-directory/entities/sonoff-pow-elite-16a/30d31327f645.jpg)
![Sonoff POW Elite 16A](https://nbg1.your-objectstorage.com/openhardware-directory/entities/sonoff-pow-elite-16a/83f7a85e64b1.jpg)
![Sonoff POW Elite 16A](https://nbg1.your-objectstorage.com/openhardware-directory/entities/sonoff-pow-elite-16a/0dc536c538ea.jpg)
![Sonoff POW Elite 16A](https://nbg1.your-objectstorage.com/openhardware-directory/entities/sonoff-pow-elite-16a/d79190c5278c.jpg)
![Sonoff POW Elite 16A](https://nbg1.your-objectstorage.com/openhardware-directory/entities/sonoff-pow-elite-16a/5bc66389b6c0.jpg)
![Sonoff POW Elite 16A](https://nbg1.your-objectstorage.com/openhardware-directory/entities/sonoff-pow-elite-16a/87c30da0e851.jpg)
![Sonoff POW Elite 16A](https://nbg1.your-objectstorage.com/openhardware-directory/entities/sonoff-pow-elite-16a/062260332868.jpg)

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