DIY wireless charger with a “sound sensing sparkle”

Makers searching for a project to keep them busy this weekend may be interested in a fantastic DIYwireless charger complete with light effects and “sound sensing sparkle” says its creator Chen on the Hackster.io website. Check out the video below to learn more about the wireless charger which uses a SparkFun Arduino Pro Mini 328 5V/16MHz, RGB LED strip and a wireless charging module to great effect. It’s cr ...

Read more

Temperature-to-period circuit provides linearization of thermistor response

Designers often use thermistors rather than other temperature sensors because thermistors offer high sensitivity, compactness, low cost, and small time constants. But most thermistors' resistance-versus-temperature characteristics are highly nonlinear and need correction for applications that require a linear response. Using a thermistor as a sensor, the simple circuit in Figure 1 provides a time period var ...

Read more

Running AI on IoT microcontroller devices with ELL

How about designing and deploying intelligent machine-learned models onto resource constrained platforms and small single-board computers, like Raspberry Pi, Arduino, and micro:bit? How interesting would that be? This is exactly what the open source Embedded Learning Library (ELL) project is about. The deployed models run locally, without requiring a network connection and without relying on servers in the ...

Read more

8 Best Arduino Starter Kit for Beginners

Best Arduino Starter Kit Arduino Starter Kit from Arduino Elegoo Uno Project Super Starter Kit with Tutorial for Arduino Vilros Arduino Uno 3 Ultimate Starter Kit SunFounder Project Super Starter Kit for Arduino Osoyoo Ultimate Starter Kit for Arduino with Mega2560 and UNO R3 Board Projects Longruner Starter Kit for Arduino Kuman Arduino Complete Starter Kit Smraza Starter Kit for Arduino For a beginner in ...

Read more

Introduction to I²C and SPI protocols

I²C vs SPI Today, at the low end of the communication protocols, we find I²C (for ‘Inter-Integrated Circuit’, protocol) and SPI (for ‘Serial Peripheral Interface’). Both protocols are well-suited for communications between integrated circuits, for slow communication with on-board peripherals. At the roots of these two popular protocols we find two major companies – Philips for I²C and Motorola for SPI – and ...

Read more

DIY Arduino electric screwdriver project

Makers and hobbyists searching for a new Arduino project to keep them busy this weekend may be interested in a 3D printed DIY Arduino electric screwdriver created by “Progress Thailand”. The DIY electric screwdriver is fitted with a 9 g Micro server which has been modified for continuous rotation and connected to an Arduino Nano. As you can see from the image above the electronics have then been housed in a ...

Read more

CO2, temperature and humidity monitor

CO2 Monitoring is mandatory in many workplaces and it affects two of my clients directly in Barrel Halls where wine is stored and aged in temperature and environmentally controlled areas. The table below shows the affects of various concentrations in the air. 250-350ppm Normal background concentration in outdoor ambient air 350-1,000ppm Concentrations typical of occupied indoor spaces with good air exchange ...

Read more

How to build a simple Arduino shutter speed tester – by Ethan Moses

I’ve been stuck in my house filling orders for my Kickstarter campaign for the CAMERADACTYL 4×5 Field Camera, mostly just babysitting printers, changing filaments and adjusting extruders every few hours. This has left me with some rare time for tinkering. Recently I built a cheap, quick and dirty tool to calibrate a project that I was working on. I was adding manual shutter speed adjustment to my Yashica El ...

Read more

Oct Home Automation using ESP8266 & Blynk App – IoT

A home automation system is an automating the bulk of electronic and electrical tasks within a home. It uses a combination of hardware and software to enable control and management over appliances and devices within a home. Home automation not only refers to reduce human efforts but also energy efficiency and time saving. Here we are performing home automation by using ESP8266 – WiFi SoC and Blynk Playstore ...

Read more

Infinite Noise True Random Number Generator

Infinite Noise TRNG (True Random Number Generator) For instructions for compiling the and using Infinite Noise TRNG driver, go to the software sub-directory, and read the README file there. Both Linux and Windows are supported. The Infinite Noise TRNG is a USB key hardware true random number generator. It uses what I call a "Modular Entropy Multiplier" architecture (previously Infinite Noise Multiplier or F ...

Read more

4Duino UCAM-II Demo

The main objective of this project is to show how to interface a uCAM-II serial camera to 4Duino. uCAM-II is a highly integrated micro serial camera which could be controlled by any host that requires a video camera or a JPEG compressed still camera for embedded imaging applications. uCAM-II processes various features making it trivial to interface to a microcontroller. Following are the list of few feature ...

Read more

WiFi Antenna Market to Witness Huge Growth by 2023

HTF MI recently introduced Global WiFi Antenna Market study with in-depth overview, describing about the Product / Industry Scope and elaborates market outlook and status to 2023. The market Study is segmented by key regions which are accelerating the marketization. At present, the market is developing its presence and some of the key players from the complete study are Mobilemark, RF Solutions, Adeunis RF, ...

Read more
Scroll to top