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These modules are infrared remote control using ESP8266.
There are air conditioners, fan remote controls and AV amplifier remote controls. The operation is done via MQTT.
CH340 USB to serial adapter plugged in and connected to the PC. Jumper fitted with ESP-01 board already fitted.
Pressing the reset button and then pressing the compile button on the IDE complies the programme and downloads it to the ESP-01 on-board flash.
Once programming has finished the jumper is removed and reset button pressed again. Programme then boots up.
The ESP-01 will be acting as web interface for the Oil tank monitor, allowing me to interrogate the monitor from anywhere in the house.
This is the best development board for building projects with the latest version (12-E) of the fantastic, inexpensive Wi-Fi module ESP8266!
This is currently the main view that I've created in the Blynk app that shows the fermentor and glycol status. I have an ESP8266 wifi module hooked up to the Arduino and it pushes the data out to the app. Then the app gives you widgets that you can connect as indicators, values, graphs, etc. I was really surprised how easy it was to get this all done. They did a great job with the app.
Overview: IoT based Visitor Counter
Today in this project, will make IoT Based Bidirectional Visitor Counter using NodeMCU ESP8266 & Blynk IoT cloud. This project is useful for monitoring the total number of visitors entering, exiting, and current visitors available from any part of the world using the Blynk IoT cloud platform. Infrared or IR Sensors are used to count the total number of incoming and outcoming visitors. The Visitors’ data is uploaded automatically to Blynk cloud using the NodeMCU ESP8266 Wi-Fi Module.
You can use this ESP8266 NodeMCU based IoT Bidirectional Visitor counter in the hall, shopping mall, office entrance gate to count the total number of visitors. This device counts the total number of visitors entering through the gate & also counts the total number of visitors exiting through the different gates. Basically, it calculates the total number of current visitors by subtracting the outgoing visitor from the incoming visitor. When a single person enters the room, the light turns on automatically. Whenever there are no visitors present in the room, the light turns off automatically.
Previously, we have made the Visitor Counter Project using Arduino & OLED Display. But this time we will send the data to the Blynk cloud instead of simply watching it on OLED Display.
Components Required
We can make this IoT Bidirectional Visitor Counter using ESP8266 Wi-Fi Module, a pair of IR Sensor, SSD1306 OLED Display, and a Relay Module.
theiotprojects.com/iot-based-bidirectional-visitor-counte...