The Blooper is an open-source USB looper that brings back the null modem concept for modern USB-C connections, enabling UART serial debugging, device emulation, and network-free file transfers between two hosts.
Espressif has announced the ESP32-E22, its first Wi-Fi 6E SoC designed as a radio co-processor for high-performance connected devices, featuring tri-band Wi-Fi 6E, Bluetooth dual-mode, and a dual-core RISC-V processor.
This article describes a GSM-based emergency call system with an RF receiver that sends calls and SMS to pre-programmed numbers when a small wearable transmitter is activated. It is designed for elderly people and bedridden patients who need to call for help with a single press of a button.
We create NeoPixel light installations with Fishino and NodeMCU controlled via Wi-Fi from a PC or Raspberry Pi using a Python library. A few years ago, the American company Adafruit Industries transformed the LED market by introducing NeoPixels, RGB LEDs that incorporate their own controller in a single package. Adafruit aimed to simplify LED management…
Jakob Krantz has created an open-source smartwatch called ZSWatch, which utilizes the Zephyr Real-Time Operating System (RTOS). The four-layer PCB measures 36mm and contains a u-blox ANNA-B402 module with a Nordic nRF52833 BLE SoC, a sensor package with an accelerometer, a pulse oximeter, and a heart rate monitor, a vibrating motor,…
Home Assistant has announced the development of an app for Android Auto. In December, Google released an update for Android Auto that now accepts IoT apps in the Play Store. This means that it will be possible to control Home Assistant directly from Android Auto. The new features are already available in the beta…
There are numerous ESP8266 modules available, and they are often used in battery-powered IoT applications that, with the correct configuration, can run for months. In this guide, you will learn how to power an ESP8266 using lithium-ion batteries and how to configure it correctly. You will also be able to simulate battery life…
Among the simplest platforms for connecting IoT devices is Blynk IoT. Blynk allows you to quickly create apps to control wireless modules, visualize data from sensors, create dataloggers, and much more. In this two-part mini course, Michele Maffucci provides detailed explanations on how to make the most out of Blynk.
If you are a lover of Retrogaming and do not have the possibility to use the original controllers with the cable, this project is for you. Specifically, an adapter has been built that allows you to use a PlayStation 3 controller on the Nintendo Gamecube in a completely wireless way. The adapter consists of an…
Who has never left their phone in one place and realized too late that they have lost it? In this project we will look for a solution to the problem; whenever you are too far away from your phone, “Don’t Lose Me” will blink and whistle, as well as your phone will play an annoying…
Have you ever wanted to know the temperature of your home anywhere in the world? Do you want to add a function to your weather station or monitor the air in your workshop? Let’s take a look at this project! The system consists of a sensor module that measures various environmental variables, which sends its…
In this project we will see how to make a simple bike dashboard that allows you to view speed, turn on rear and front lights and enable turn signals. The system is based on an Arduino Mega which controls two 1.3 “OLED displays to view data, several segments of WS2812 led strips used as lights…
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