Can ESP32 used in Commercial IoT products? Yes, ESP32 has modules and SoC to fit your production need. However, Arduino IDE is not for production. The reason we switched our projects from genuine Arduino to ESP32 Arduino is to broaden the scope. Our IoT guides are around IBM for highest compatibility. Node-red is the most popular IoT control software, which is very easy to use and many tutorials. … [Read more...]
How to Connect Apache Kafka With MQTT
This is not a step by step guide with commands. This is a guide to get started moving from generic Kafka to Confluent Inc's Kafka, Connectors and ready to consume one GitHub repository. Initially it will appear that with the easiness we installed Apache Kafka and MQTT Server, with same easiness we can connect Apache Kafka with MQTT. There are actually many things to learn, think. MQTT is a … [Read more...]
Two Way Communication in IoT (Cloud to Device and Device to Cloud)
Commonly, we send data from the devices like ESP32 Arduino, Smartphone, Raspberry Pi, Smart Watch to the IoT platform. IoT platform can be self hosted or on the cloud. Example of actual such one way communication can be our example simple project, such as ESP32 Arduino sending temperature, humidity data to IBM Watson IoT platform. We already know the theory around machine to machine communication, … [Read more...]
Cost Comparison of Cloud IoT Platform Vendors
In another article we discussed about different Cloud IoT platform vendors. Mostly in this blog we use IBM Watson IoT. The question will arise, how much we pay for using their IBM Watson IoT and Node-RED. We have credit card linked account and our net payable so far for the two services is zero. Because our usage is so low that comes under free Lite plan. When we started around IoT topics for the … [Read more...]
How to Send Data from Arduino to MySQL Database
In our recent past discussions, we have send data from ESP32 Arduino to IBM Watson IoT by either using MQTT or by using HTTP POST. In the same way, we have discussed how with CouchDB we can send data from ESP32 Arduino. Also, we have discussed different types of cloud database for IoT. MySQL is widely used database for PHP driven web applications. We can send data from Arduino, ESP32 to MySQL … [Read more...]
InfluxDB vs CouchDB for IoT Backend
InfluxDB is an open-source time series database with restricted features with support for processing data from Graphite. CouchDB purely a free software. InfluxDB is quite different from CouchDB. InfluxDB supports SQL style query. InfluxDB accepts data via HTTP, TCP, and UDP and directly supports Grafana. If you use TIG Stack (Telegraf, InfluxDB, and Grafana), within half an hour you'll get … [Read more...]
What is Zigbee? What Are the Differences Between LoRa and Zigbee
What is Zigbee? ZigBee is a personal-area network standard. ZigBee specification considered as an alternative to Wi-Fi and Bluetooth for some applications. Unlike LoRa and Wi-Fi, multiple central controllers can be used for Zigbee. Zigbee is the name of the specification of a set of high-level wireless communication protocols for use with low-power digital broadcasting, based on the IEEE 802.15.4 … [Read more...]
What is LoRa? What Are the Differences Between LoRa and WiFi
What is LoRa? What Are the Differences Between LoRa and WiFi? WiFi is limited in range, consume huge battery. LoRa is specially designed for the IoT devices. LoRa stands for Long Range. LoRa gives long-range transmissions of more than 10 km in rural areas with low power consumption. It is a patented wireless data communication technology developed in 2012. LoRa is a wireless communication standard … [Read more...]
Big Data Analytics in Internet of Things (IoT)
What is the Role of Big Data Analytics in the Internet of Things (IoT)? We can connect all the things to the cloud database & find the pattern. A voluminous amount of data have been produced since the advent of the Internet of things (IoT) devices. Data are not useful without analytics. Numerous solutions have enabled to obtain insight into large data generated by the devices. These solutions … [Read more...]
Connecting ESP32 Arduino with DHT11 with IBM Watson IoT
Earlier, we described how to create graph on IBM Watson IoT dashboard by using the default widgets. In previous guide, we described how to use ESP32 Arduino with DHT11 sensor. Here is the Code and Diagram to Connect ESP32 Arduino with DHT11 with IBM Watson IoT and Get Odometer Like Gauges on Dashboard. For this guide, you will need : Reading the above linked guides for setup and materials … [Read more...]
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