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Hacklet 85: Alternative Audio Amplifiersa

Hacklet 85: Alternative Audio Amplifiers

When you think of amplifiers, you’re probably thinking of audio or some big ‘ol power amps for radios. While interesting, there are some very interesting ‘alternative’ amplifiers floating around hackaday.io that are more than just power amps, and exceedingly useful, to boot. [Ronald] bought an XMS amplifier a few years ago, and although it worked well, every time he changed the input, the loudness had to be toggled. One thing led to another, and he realized this amplifier had a four-channel audio processor that could be controlled by I2C. This was the beginning of his Network Amplifier. Inside the box …read more #Amp, #Amplifier, #HackadayColumns, #Hacklet, #Ion, #IonWind, #NetworkAmplifier, #Speaker, #TubeAmp, #TubeAmplifier

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Hacklet 70 – Calculator Projectsa

Hacklet 70 – Calculator Projects

Hackers, makers, and engineers have long had a love affair with number crunching. Specifically with the machines that make crunching numbers easier. Today it may be computers, smart watches, and smartphones, but that wasn’t always the case. In the 50’s and 60’s, Slide rules were the rage. Engineers would carry them around in leather belt pouches. By the early 70’s though, the pocket calculator revolution had begun. Calculators have been close at hand for hackers and engineers ever since. This week’s Hacklet celebrates some of the best calculator projects on Hackaday.io! We start with [Joey Shepard] and RPN Scientific Calculator. …read more #Calculator, #HackadayColumns, #Hacklet, #Hp, #Pocket, #RPN, #TexasInstruments, #TheHacklet

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Hacklet 68 – Rocket Projectsa

Hacklet 68 – Rocket Projects

There’s just something amazing about counting down and watching a rocket lift off the pad, soaring high into the sky. The excitement is multiplied when the rocket is one you built yourself. Amateur rocketry has been inspiring hackers and engineers for centuries. In the USA, modern amateur rocketry gained popularity after Sputnik-1, continuing on through the space race. Much of this history captured in the book Rocket Boys by Homer Hickam, which is well worth a read. This week’s Hacklet is dedicated to some of the best rocketry projects on Hackaday.io! We start with [Sagar] and Guided Rocket. [Sagar] is …read more #AmateurRocketry, #Arduino, #Estes, #HackadayColumns, #Hacklet, #Rocket, #RocketBoys, #Spacex, #TheHacklet

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Hacklet 55 – Home Automation Projectsa

Hacklet 55 – Home Automation Projects

Home automation – the idea of a smart home that monitors and controls the inside environment, takes commands from occupants, and generally makes living easier. Hackers, makers, and engineers have been building their own vision of the smart home for decades. Thanks to cell phones and the revolution of the “internet of things”, home automation is now in the public eye. The hackers haven’t stopped though. They’re still building dreams, one circuit and one line of code at a time. This week’s Hacklet is dedicated to some of the best home automation projects on Hackaday.io! We start at the top …read more #HackadayColumns, #Hacklet, #HomeAutomation, #SmartHome, #Smarthome, #TheHacklet, #X10, #Zigbee, #Zwave

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Hacklet 52 – Breakout Board Projectsa

Hacklet 52 – Breakout Board Projects

Starting a design with a new part can be hard. What power supply voltage(s) does it need? Are there any support component requirements? What is the footprint? What about the I/O voltage levels? Breakout boards are designed to answer all those questions for you. Breakouts help when you’re designing with a new part – be it a microcontroller, a sensor, a motor driver, or anything else. They also are a huge help when you’re trying to knock out a quick hack, and just need to get something working quick. Fast to integrate, often breadboard friendly, breakouts just make things easier! …read more #Breakout, #BreakoutBoard, #HackadayColumns, #HackadayIo, #Hacklet, #TheHacklet

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Hacklet 30 – Robot Arm Projects

Hacklet 30 – Robot Arm Projects

Hackaday

Robot arms – they do everything from moving silicon wafers to welding cars. Many a hacker has dreamt of having their own robot arm to serve them beer help them build projects. This week’s Hacklet features some of the best robot arm projects on Hackaday.io!

We start with [4ndreas] who is building this incredible 3D Printable Robot Arm. Inspired by large industrial robots, [4ndreas] has…

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