IoT Platform HTTP & MQTT API | Zhenming Electronics

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Tax-inclusive reference prices in CNY. Negotiable; the quotation reflects the selected configuration, quantity and delivery requirements. All products carry a 3-year warranty.

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For a complete system, include the power supply, sensors, communication access and platform deployment in your enquiry.

Product Positioning

HTTP, MQTT and Webhook integration for device queries, asynchronous commands and device-message callbacks, with callback verification, HMAC-SHA256 signatures and delivery retries.

Capability 01HTTP, MQTT and Webhook integration

Capability 02Asynchronous commands with device-message callbacks

Capability 03Callback verification and HMAC-SHA256 signatures

Capability 04Delivery retries and configuration status queries

Typical Applications

The page is written for engineering companies, system integrators, device manufacturers and B2B project procurement teams.

Selection Notes for B2B Projects

Integration GoalDecide whether the project needs an operator client, enterprise API integration, mobile access, dashboard display or private deployment.

Device ModelGroup devices by project, area, cabinet, circuit, sensor point, meter circuit and maintenance role for easier operation.

Data FlowUse status synchronization, control records, alarms and logs to connect hardware behavior with maintenance workflows.

Integration and Deployment

Device ModelName devices by project, site, cabinet, circuit and role so operators can find the correct object quickly.

Access ModelDefine operator roles, customer systems, device credentials and permitted control actions.

Data WorkflowConnect status, commands, alarms and logs with the maintenance and reporting process.

Deployment ScopePlan public access, private deployment, API integration and operational ownership as one architecture.

New: Asynchronous Commands and Device Callbacks

Submit a command without waiting for the device response. Webhook delivers device messages to your server, with callback verification, HMAC-SHA256 signatures and delivery retries. A successful publish response confirms command submission; the device result arrives through the callback.

View Webhook API documentation ↗

Selection and system combinations

Use the API to connect device data and control operations with a business system. Define business events, device models and data direction; use the platform client when an operator interface is required.

IoT Centralized Management Client

The client centralizes device management while field hardware performs control and acquisition. Existing business systems can use platform API integration; local room operations can use RoomCtr.

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Application selection

ZMRN Q Series Network Relay Controller

Select a Q-series configuration by circuit count, load type and site network. Compare 4G models for cellular access and the high-power range for higher-load circuit control.

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Technical specifications and model data

Integration interfaces	HTTP API, Webhook callbacks and persistent MQTT connections
Main functions	Device queries, synchronous/asynchronous control, device-message push, callback signatures and delivery-status queries
Applicable devices	IoT relays, 4G controllers, industrial IO, acquisition terminals and other platform-connected devices
Integration applications	Enterprise platform integration, private deployment, system integration and remote operations

Product integration and applications

01

Translate business events into device operations

HTTP, MQTT and Webhook integration connects booking, building, farm, energy or customer systems to device queries, commands and messages. The business application owns its domain workflow; the IoT layer owns devices, channels and measurements. Define their mapping before actions and callbacks so the integration includes operating feedback as well as command delivery.

02

Handle asynchronous commands and device messages

Remote control involves submission, platform acceptance, device reception and state reporting. Record request identity, device, channel, target action and time, then update state from device messages or queries. Distinguishing a successful API call from a confirmed field action helps handle latency, offline devices and repeated operations.

03

Use callback verification and retries for reliable delivery

Webhook verification, HMAC-SHA256 signatures and delivery retries support the receiving service. Validate callbacks and use event or business keys to avoid duplicate processing. Consistent device identities, timestamps and point definitions let data enter customer logs, reports and alarms. Start with device queries and one circuit before extending to callbacks and wider integration.

Selection questions

Does API success prove the field action completed?

No. Acceptance and execution are different stages. Use device messages, state queries and the project acknowledgement model to confirm the outcome.

Can Webhook retries produce duplicates?

The receiver should process messages idempotently by event or business key, alongside signature checks and logs.

Selection FAQ

How should this product be selected?Selection normally starts from the field object: control loop, input signal, sensor type, weighing point, meter circuit, communication method and platform requirement.

Can it connect to an IoT platform?Zhenming products can be combined with platform functions for remote control, status viewing, schedules, alarms, logs and data management.

Is private deployment supported?Private deployment and system integration can be planned according to project scale, network condition, interface scope and maintenance workflow.

IoT Platform API Integration