HARDWARE & SDK

Integrate IOTMER with your own hardware

Add a few lines of code with ESP32 SDK. Bridge the industrial field with Modbus Gateway. Cloud MQTT infrastructure is ready.

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ESP32 SDK

Integrate into your own board with ESP32 SDK

Hardware manufacturers add the IOTMER SDK to ESP32-based boards and connect directly to the cloud — no broker setup or MQTT stack required.

  • ESP32 SDK

    C/C++ library. MQTT connection, OTA updates, and telemetry publishing built in.

  • UART Module

    Connect to your existing microcontroller via UART — minimal firmware changes for fast integration.

  • TLS Security

    Device certificates and TLS 1.2/1.3 for end-to-end encrypted communication.

SDK Documentation → Hardware Details

Cloud MQTT

Managed MQTT broker. Sign up, get credentials, connect your devices.

ESP32

ESP32 SDK

mqtt.iotmer.cloud

MODBUS GATEWAY

Modbus Gateway

Connect industrial Modbus devices to the cloud via MQTT.

Integration: ESP → UART → Cloud

Data flow from your device to the IOTMER panel in three steps.

1

Hardware & UART

Read sensor and machine data via UART with ESP module or SDK.

2

Data Normalization

UART data is converted to JSON and sent to IOTMER cloud via MQTT.

3

Analysis & Action

Monitor, alert, and manage remotely from the panel.

MODBUS GATEWAY

Modbus Gateway & Industrial Field

Bridge PLCs, energy meters, and industrial equipment to MQTT over RS485/RS232. Connect field Modbus devices to the cloud in minutes.

  • RS485 / RS232 support
  • Dynamic register mapping
  • Low-latency MQTT bridge
  • Wi-Fi and Ethernet connectivity
Hardware Specifications →

RS485 / RS232 support

Dynamic register mapping

Low-latency MQTT bridge

Wi-Fi and Ethernet connectivity

Plug-and-Play Industrial Intelligence

From field to cloud in four steps.

1

Mount

DIN rail or on-board mounting.

2

Power

24V DC or UART module power supply.

3

Pair

Add device to console via QR code.

4

Analyze

Data in the cloud — start monitoring from the panel.

Hardware Specifications

ESP-based module and Modbus Gateway — ready for the industrial field.

Feature IOTMER ESP Module IOTMER Modbus Gateway
Processor ESP32-WROOM (240 MHz, dual-core) ESP32 + RS485 transceiver
Connectivity Wi-Fi, UART Wi-Fi, Ethernet, RS485/RS232
Protocol MQTT 3.1.1 / 5.0, TLS Modbus RTU/TCP → MQTT
Power 3.3V / 5V (UART module) 24V DC (DIN rail mount)
Operating temperature -20°C ~ +70°C -20°C ~ +70°C

Make your hardware smart with IOTMER

Review SDK documentation or create a free account from the console.

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