Mqtt Protocol
I 10 migliori prodotti di aprile 2025
Ultimo aggiornamento:
28 aprile 2025
Independently published
MQTT For Complete Beginners: Learn The Basics of the MQTT Protocol
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Packt Publishing
MQTT Essentials - A Lightweight IoT Protocol: Send and receive messages with the MQTT protocol for your IoT solutions.
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#2
Waveshare
Waveshare 30-Ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, With Various Isolation And Protection Circuits, Industrial Grade Rail-Mount Case
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An industrial 30-ch relay module controlled via Ethernet port, adopts Modbus RTU/Modbus TCP protocols, supports PoE power supply, also comes with an ABS rail-mount case. Applicable to Industrial Control, Smart Home, Smart Agriculture, Breeding / Farming
The Modbus POE ETH Relay 30CH is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirements
Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically. Supports DC 7~36V wide range power input and PoE power supply. Supports relay control through MQTT protocol, comes with Alibaba Cloud MQTT application demo
Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit. 4 LEDs and Network indicators for indicating the MCU status and signal transceiving status. 4 LEDs and Network indicators for indicating the MCU status and signal transceiving status
Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability. Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection. High quality relay, contact rating: ≤10A 250VAC/30VDC
96,99 € SU AMAZON
VITA RESEARCH
Protocol Plus 21fl 25ml
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#4
LAP LAMBERT Academic Publishing
Internet of Things Architecture and Research App with MQTT Protocol
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#5
Ediciones Nuestro Conocimiento
Arquitectura del Internet de las Cosas y aplicación de investigación con protocolo MQTT
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#6
Editions Notre Savoir
Architecture de l'internet des objets et application de recherche avec le protocole MQTT
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#7
Packt Publishing
Hands-On MQTT Programming with Python
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#8
Waveshare
RS485 a RJ45 Ethernet Convertitore Server Seriale Industriale TCP/IP a Seriale Modulo Supporta Modbus Gateway, MQTT/JSON to Modbus, Modalità di Comunicazione Multipla, Supporto Rail-Mount
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★【Industrial Serial Server】RS485 to RJ45 Ethernet Module for bi-directional transparent data transmission between RS485 and Ethernet, with rail-mount flame-retardant case design, supports 9~24V wide range power supply
★【Modbus Gateway Support】Suitable for Modbus gridding upgrade, can be used with 3D configuration software, Support MQTT/JSON to Modbus, more flexible conversion between different protocols
★【Multi Communication Modes Support】Supports TCP server / TCP client / UDP mode / UDP multicast
★【Multi Hosts Roll-polling Support】Different network devices will be identified and responsed respectively, no more crosstalk issue while communicating with multi network devices. User-defined heartbeat/registration packet, easy for cloud communication and device identification, support NTP protocol, getting network time info for serial output or data upload, support multi configuration methods
★【Technical Support】Development Resources and Technical Support are provided, please feel free to contact us if you have any problem when using the RS485 TO ETH (B)
31,90 € SU AMAZON
Waveshare
NB-IoT/Cat-M(eMTC)/GNSS HAT for Raspberry Pi Based on SIM7080G Supports Protocols as TCP/UDP/HTTP/HTTPS/TLS/DTLS/PING/LWM2M/COAP/MQTT Globally Applicable
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Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
Supports communication protocols such as TCP/UDP/HTTP/HTTPS/TLS/DTLS/PING/LWM2M/COAP/MQTT;Supports GNSS positioning (GPS, GLONASS, BeiDou, and Galileo)
Onboard USB interface, to test AT Commands, get GPS positioning data, and so on; Onboard voltage translator, 3.3V by default, allows to be switched to 5V via onboard jumper; Common baudrate auto-negotiation: 9600/19200/38400/57600/115200 bps
Breakout UART control pins, to connect with host boards like Arduino/STM32; SIM card slot, supports ONLY 1.8V SIM card (3V SIM card is not available);3x LED indicators, easy to monitor the working status;Baudrate: 300~3686400 bps
Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32), download: www.waveshare.com/wiki/SIM7080G_Cat-M/NB-IoT_HAT
52,59 € SU AMAZON
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