![Monitoring Temperature Sensor Data with an Arduino based PLC, MQTT, Node-RED, GridDB and Grafana. | GridDB: Open Source Time Series Database for IoT Monitoring Temperature Sensor Data with an Arduino based PLC, MQTT, Node-RED, GridDB and Grafana. | GridDB: Open Source Time Series Database for IoT](https://griddb-pro.azureedge.net/en/wp-content/uploads/2020/09/Screen-Shot-2020-09-24-at-4.06.34-PM.png)
Monitoring Temperature Sensor Data with an Arduino based PLC, MQTT, Node-RED, GridDB and Grafana. | GridDB: Open Source Time Series Database for IoT
![ESP32 MQTT - Publish DHT11/DHT22 Temperature and Humidity Readings (Arduino IDE) | Random Nerd Tutorials ESP32 MQTT - Publish DHT11/DHT22 Temperature and Humidity Readings (Arduino IDE) | Random Nerd Tutorials](https://i0.wp.com/randomnerdtutorials.com/wp-content/uploads/2020/04/ESP32-MQTT-DHT11-DHT22-Node-RED.png?quality=100&strip=all&ssl=1)
ESP32 MQTT - Publish DHT11/DHT22 Temperature and Humidity Readings (Arduino IDE) | Random Nerd Tutorials
![Iot Pressure And Temperature Sensor Mqtt / Tcp / Udp Sensor Data Upload - Instrument Parts & Accessories - AliExpress Iot Pressure And Temperature Sensor Mqtt / Tcp / Udp Sensor Data Upload - Instrument Parts & Accessories - AliExpress](https://ae01.alicdn.com/kf/H21e6ee88915047b6b0a553e83d8e5e32M/IoT-pressure-and-temperature-sensor-MQTT-TCP-UDP-sensor-data-upload.jpg)