Using the ST7735 1.8″ Color TFT Display with Arduino

Hi guys, welcome to today’s tutorial. Today, we will look on how to use the 1.8″ ST7735  colored TFT display with Arduino. The past few tutorials have been focused on how to use the Nokia 5110 LCD display extensively but there will be a time when we will need to use a colored display or something bigger with additional features, that’s where the 1.8″ ST7735 TFT display comes in. The ST7735 TFT display is a ...

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Laser Beam Wireless Smartphone Chargers: The Next Big Thing

Cellphone chargers have been in existence for years and have grown from one stage to another. It started with the mobile phone traditional charger which had a USB interface, a DC converter, and a charging plug and now has expanded to a close-range inductive wireless charging. The commonly used inductive wireless charging is nice but limited, it still requires close contact with the charging pad making it of ...

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Powering Batteries With Protons – A Potential Disruption in the Energy Industry

Climate Change have been a crucial factor taken into consideration by the Australian researchers from Royal Melbourne Institute of Technology before creating the first rechargeable proton battery. After considering all available options about cost and availability of the materials needed, the researchers in Melbourne decided to make a proton battery to meet up with the alarming increase of energy needs in t ...

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How to make precision measurements on a nanopower budget

Heightened accuracy and speed in an operational amplifier (op amp) has a direct relationship with the magnitude of its power consumption. Decreasing the current consumption decreases the gain bandwidth; conversely, decreasing the offset voltage increases the current consumption. Many such interactions between op amp electrical characteristics influence one another. With the increasing need for low power con ...

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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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TPS61092 Boost Converter on Test Bench

For my current project I searched for a good boost power converter which is able to deliver continuous 400mA power for various sensors. There are an endless number of good boost converters around, but not many can be hand soldered to a board. I would really like to see some like the TPS61092 with SOIC or similar packages. The biggest problem seems to be the heat transport, why most chips have to be mounted ...

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Qoitech’s power measurement tool in distribution

Power measurement software by Qoitech is available from Digi-Key Electronics, following the signing of a worldwide distribution agreement to distribute Otii, a power measurement tool with software. Otii provides developers with the means to simplify power measurement of applications and devices, especially those targeting the IoT space and aiming for optimised, long battery life. Otii combines the measureme ...

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AAEON’s VPC-5600S opens up new horizons for NVR technology

AAEON, an award-winning developer of network devices and embedded computers, launches the VPC-5600S, a network video recorder (NVR) with a possible eight PoE ports, each supported by their own LAN chips. The VPC-5600S recently picked up coveted COMPUTEX d&i and Taiwan Excellence Awards, and AAEON network security division product manager Josh Chen has labelled it “the perfect surveillance system.” AAEON ...

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AI Core – Artificial Intelligence On The Edge

The first embedded ultra-compact Artificial Intelligence processing card for on the edge computing UP Bridge the Gap – a brand of AAEON Europe – is proud to launch AI Core: the first embedded ultra-compact Artificial Intelligence processing cards for edge computing. AI Core is a mini-PCIe module powered by Intel® Movidius™ Myriad™ 2 technology. This low-power module enhances industrial IoT edge devices with ...

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Arduino Button Debounce Tutorial

One of the major problems encountered when using push buttons and switches in digital electronics project is the problem of bouncing. When we press a button once it may register twice and when we press it four times, in a row, for instance, it may register just twice. This occurrence is due to a property of switches known as bounciness which is as a result of the physical property of the switches. Contact b ...

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Exynos 9 series applications processor has deep learning based software

The new Exynos 9810 brings premium features with a 2.9GHz custom CPU, an industry-first 6CA LTE modem and deep learning processing capabilities Samsung Electronics, a world leader in advanced semiconductor technology, today announced the launch of its latest premium application processor (AP), the Exynos 9 Series 9810. The Exynos 9810, built on Samsung’s second-generation 10-nanometer (nm) FinFET process, b ...

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Arduino controlled Dual Mono AK4490 DAC (part 3)

Following up on Part 2, it’s time to talk about the output stage. This output stage is the brainchild of my friend Kostas, all I did was lay out the PCB. It is a fully discreet single-ended class-A output stage, outputting ~2.4V RMS. This is its schematic: This is the PCB: And this is the BoM: AK4490 dual mono DAC - Discreet Analog stage BOM (509 downloads) The BoM includes part numbers for most parts from ...

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