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This is an ESP32 NodeMCU-based Air Quality monitoring system to check particulate matter (PM), humidity, temperature, altitude and pressure levels. Various environmental conditions of the place are tested and displayed on the TFT display as well as on ThingSpeak...
Presented here is the design for a relay-based line follower robot without using a microcontroller (MCU). The robot provides a simple application to get started with sensor-based projects for newbie electronic hobbyists and enthusiasts. It can follow a black...
This circuit can be used to detect big over-height vehicle moving towards bridges, tunnel entrances and overhead structures, and warn the drivers. It can be developed for monitoring such a vehicle approaching, say, a bridge at night. The vehicle detection...
Gas detector systems are mainly used for sensing the presence of gas leaks and then taking an action, such as automatically shutting down the source of gas or sounding an alarm to inform the people in the area about...
Presented here is a project based on ESP32 module to control home appliances using its touch-sensing inputs and Wi-Fi features. ESP32 module is great for designing the Internet of Things (IoT) applications—adding touches to it makes it smarter. It is...
The circuit presented here converts 12-bit parallel digital data to serial data and then transmits it through RF transmitter module. Serial data is received at RF receiver module in serial format. The received signal is then converted to parallel...
Industrial timers are widely used in the industry for automatic controlling of electrical devices. Most timers available in the market are either complicated or poor in quality with unsatisfactory cost-to-performance ratio. This DIY industrial timer is panel-mountable and offers...
This circuit is used to convert DC voltages like 9V and 12V to 5V, 500mA DC, which is suitable for embedded systems. Use of a linear regulator normally found in an AC-DC adaptor is not a good idea, because it...
A small TFT display connected to Raspberry Pi can display many pictures one after another. This can also be done using ESP32, using the same calculations and tricks. This project is used to create a picture slideshow using ESP32...
ADS-B, or automatic dependent surveillance - broadcast, is used by commercial airplanes to broadcast their latitude and longitude along with other information to the air traffic controller. This information is transmitted at 1090MHz. ADS-B signals can be received using...
 
 

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