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This ESP8266-based IoT volumeter measures the volume of an open space inside an enclosure using ultrasonic sensors. Three HC-SR04 ultrasonic transceivers are placed orthogonally to measure distances (width, height and lenght) along the three directions to compute the volume. The measurements are sent to the CloudMQTT server and displayed as graph.
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Are you tired of checking the pH level and chlorine concentration of water in your swimming pool everyday? This Pool Buddy project from Johan Brichau might be helpful for you to monitor the water quality automatically. It will also upload the data online continuously so that you can easily access it from anywhere. It uses the Ph and ORP kits by atlas-scientific.com for sensing the water quality and the Particle Photon for collecting the sensor data and sending them to an online database over the WiFi connection. A small solar panel is also mounted to keep the device running autonomously. The Photon firmware boots the device every
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Tom Tobback built an ESP8266 internet radio based off Edzelf’s excellent Esp-radio project. It uses NodeMCU ESP8266 board for connecting to various internet radio stations and the VS1053 module for decoding the mp3 stream. A TFT display is used in the project to show relevant information such as which radio station is being played. The firmware for ESP8266 is developed using Arduino IDE. The radio also features a built-in web server to allow the user to configure settings and add/modify favorite radio stations. The radio box has a volume control knob and 2 push buttons for channel up and down functions.
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This Arduino-based multi-effect guitar pedal is an open source design for guitarists and hackers. The design is made simple and customizable so that you can program it to make your own effect without an in-depth knowledge of digital signal processing. The project is Open Source & Open Hardware and aimed for guitarists, hackers and programmers that want to learn about digital signal processing, effects, synthesizers and experiment without deep knowledge on DSP, electronics or hardcore programming.
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Nick Ames aims to build a thin and flexible smartwatch with a wrap-around touchscreen display made of a 4.9″, 720×120 EPD (e-ink) screen. Besides time telling, the smartphone also features health sensors to count your steps and monitor pulse rate and blood oxygen level. This is also Nick’s official entry to Hackaday 2017 contest. Check out his project page for more details on it.
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