RFID is an acronym for Radio Frequency Identification and refers to a technology whereby digital data encoded in RFID tags or RFID cards (the one you use it in your Office or College ID Cards with RFID) that are captured by a reader via radio waves. RFID is similar to barcoding in that data from a tag or cards are...
In our previous blog, we have seen how to upload sensor data to ThingSpeak. Now we will see how to use this to update the street light data into ThingSpeak cloud. In this project, we will use the LDR to detect the day/night environment and turns on the LED during night time as well as update the data to...
Cayenne is an awesome IoT Application developed for beginners as well as professionals. It is made by myDevices. The best thing about Cayenne is, it doesn’t require any coding. All you need to do is connect your sensors or actuators to the Raspberry Pi and configure it in Cayenne Dashboard/Mobile App. You can create triggers, events, monitoring widgets and...
ThingSpeak is an Open-Source IoT application and API to store and retrieve data from Hardware devices and Sensors. It uses HTTP Protocol over the Internet or LAN for its communication. The MATLAB analytics is included to analyze and visualize the data received from your Hardware or Sensor Devices.We can create channels for each and every sensor data. These channels...
NodeMCU is a popular Wi-Fi based Development board in IoT Projects. Its predecessors are ESP-01, ESP8266-12E. The NodeMCU is based on ESP866 Series.As the name suggests it is a development board, it contains additional circuitry for Power supply USB, Communications, etc (Similar to an Arduino Uno is built around ATMEGA328 IC). Hence this board has built-in voltage regulators to...
In our previous tutorial, we have created a Home Automation using NodeMCU and Blynk. Using Blynk, we can control the devices anywhere in the World. We connected our NodeMCU with an optocoupler based relay and programmed it with Blynk code. Actually, it's very simple and no programming knowledge is required.Now in this tutorial, we will add an additional feature...
Sonoff is a WiFi controlled switch which is embedded with ESP8266 IC and has relays to control the device via the Internet. This IC can be flashed and reprogrammed by Arduino IDE. The makers of Sonoff published the libraries and Arduino files on their GitHub page. Initially, it has only for Sonoff made boards only, after that it supports...
Alexa can answer your questions in many ways. But by default, most of the skills are not enabled. The user needs to give access to the skills like Booking an Uber and Shopping and more. For a simple example, we enabled 'Rajini Dialogues' that will play random Rajinikanth Dialogues on Alexa.You can trigger it by asking, Alexa, Play Rajini...
NodeMCU is very popular in Home Automation. It's WiFi capabilities and Arduino IDE support making it easier for IoT Applications. It is very tiny and has many Digital I/O pins, Serial Communication and I2C Communication. NodeMCU has a micro USB port to program it using your existing mobile cable (no additional programmer needed). There is a successor called ESP32 Development board...
Raspberry Pi 3 Model B+ AnnouncedOn this Pi day, The Raspberry Pi organization released its new board called 'Raspberry Pi 3 Model B+' enhanced with new 1.4 GHz Cortex A53 Processor and a Dual-band WiFi compliance. The Pi organization also announced that it is working on Power Over Ethernet which makes Powering the Pi over Ethernet line. The new...
