USB Adaptive Charger (2.7A per port) with Wattmeter

Story Why: We built the Pirl Charger because we were unhappy with the quality of existing chargers. Few consumers know they gradually ruin their expensive devices by using poor quality chargers that deliver high noise, high ripple energy. Every consumer device comes with a charger, and those are usually well-built, but they usually have only one port, and if you lose it, you usually buy an aftermarket charg ...

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A Beginner’s Guide to Arduino

After some years of experimenting with Arduino, I decided that the time has come to share the knowledge I've acquired. So I here it goes, a guide to Arduino, with the bare basics for beginners and some more advanced explanations for people who are somewhat more familiar with electronics. Every step will consist of a detailed explanation, then a summary, followed by a more advanced approach. If you're a comp ...

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Adafruit Feather Bluefruit wireless sensor board soon available

Adafruit has today announced the Adafruit Feather Bluefruit Sense development board will be soon arriving in their online store, building on the popular Feather nRF52840 Express, by adding a range of sensors that can be accessed wirelessly. The Feather microcontroller is equipped with Bluetooth Low Energy connectivity together with native USB support featuring the nRF52840. Offering an ‘all-in-one’ Arduino ...

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A TINY USB HUB FOR ALL YOUR HARDWARE MODDING NEEDS

Going all the way hack to the heady days of Eee PC modding, hardware hackers have been on the hunt for small USB hubs that can easily be liberated from their enclosures and integrated into whatever project they happen to be working on. From time to time you see recommendations out there for makes and models which lend themselves to this sort of repurposing, but it’s seemed more difficult than necessary to s ...

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A NANO WITH AN OTTER’S BITE

The would-be microcontroller experimenter is now faced with a bewildering array of choices when it comes to a tiny development board for their projects. Everything from descendants and clones of the original Arduino through to full-fat Linux powerhouses such as the Raspberry Pi Zero and similar boards can be had, and often for a reasonable price. A new entrant has now joined the fray, the OtterPill is ...

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REMOTEXY SIMPLIFIES ARDUINO CONTROL

[Labpacks] wanted to build a robot car controlled by his phone. As a Hackaday reader, of course you probably can imagine building the car. Most could probably even write a phone application to do the control. But do you want to? In most cases, you are better off focusing on what you need to do and using something off the shelf for the parts that you can. In [Labpacks’] case, he used Visuino to avoid writing ...

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THIRD EYE FOR THE BLIND – an Innovative Wearable Technology for Blinds.

- The first wearable technology for blinds - Using ultrasonic waves to detect the obstacles - Notifying the user through vibrations/buzzer sound Third eye for blinds is an innovation which helps the blinds people to navigate with speed and confidence by detecting the nearby obstacles using the help of ultrasonic waves and notify them with buzzer sound or vibration. They only need to wear this device as a ba ...

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Sending Data From Arduino to Python Via USB

For several projects you might want to acquire some data from an Arduino board. There are several options and the one that I chose here uses the USB connection. I will explain how to store your data in a text file in order to plot it. I will use Python 3, the Arduino IDE and an Arduino UNO. (I'm working on Linux but I think it should be the same procedure under macOS and Windows.) Step 1: The Arduino Code T ...

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DIY – Automated Garden Irrigation – (Arduino / IOT)

This project will show you how to build an irrigation controller for a home garden. Capable of measuring soil moisture readings and activating irrigation from a garden tap if the soil becomes too dry. The controller also includes a temperature and humidity sensor. The controller will not activate the garden tap if the temperature is too low. Sensor readings and statistics about water usage / run times are r ...

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DIY | Ambilight Using Arduino Nano

In this Instructable I will be teaching you how you can create your own (b)ambilight for under $40!Keep in mind that the Ambilight will only work on a PC running the Bambilight software. You will need the following components: Individually addressable RGB LED strip - Available on AliexpressArduino NanoMini breadboardA few breadboard cables12V DC Power AdapterDouble sided tape4-5 PaperclipsZip ...

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ADD-ON MAKES ESP32 CAMERA BOARD EASIER TO PROGRAM

Don’t you just hate it when dev boards have some annoying little quirk that makes them harder to use than they should be? Take the ESP32-CAM, a board that started appearing on the market in early 2019. On paper, the thing is amazing: an ESP32 with support for a camera and an SD card, all for less than $10. The trouble is that programming it can be a bit of a pain, requiring extra equipment and a spare finge ...

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Head Mouse With MPU6050 and Arduino Micro

https://youtu.be/zsUDoa4-fQg Hi everyone, here it is my new project, a mouse controlled with the movement of the head!I decided to make this project once I received my accelerometer/gyroscope MPU6050 from IC Station, and I wanted to do something useful with this.Then I found out that a "Head Mouse" already exists, made by Martin Millmore with another accelerometer/gyroscope: https://www.instructables.c ...

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