Tag Archives: LCD

DIY milliohmmeter

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by hwmakers.eu:

This is an example of a simple and cheap milliohmmeter that can be made by every maker. The core of the circuit are a current source (LT3092) and a current sense (INA225): a costant current flows through the milliohm resistor under test and the voltage at the current sense output gives the value of the resistor (V=R*I).

The milliohmmeter can be used as a stand alone instrument by adding a MCU with at least 10 bit ADC and a LCD display or it can be used togheter with a DMM.

DIY milliohmmeter – [Link]

Arduino Project: Flappy Bird game Clone with a 1.8″ color TFT display (ST7735)

Educ8s.com @ youtube.com:

Playing the Flappy Bird game on Arduino is extremely easy. With a cheap Arduino Uno and a very cheap 1.8″ color TFT display (ST7735) you can enjoy the classic game, the best part? It is going to be a DIY project. Actually you can build your own gaming console using Arduino, like the popular Gamebuino.

The code of the project is by Themistocles Benetatos who shares the code with us. In his blog he describes how he managed to achieve that result. Don’t miss it: http://www.mrt-prodz.com/blog/view/20…

All you have to do is to buy the following parts, if you don’t own them already. The cost is around 10$:

Arduino Project: Flappy Bird game Clone with a 1.8″ color TFT display (ST7735) – [Link]

Touchscreen-controlled Arduino Geiger Counter

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by Toumal @ github.com:

A touchscreen-controlled Geiger Counter for Arduino. Requires a Radiation Watch Pocket Geiger sensor, a ITDB02 Display from SainSmart and an Arduino Mega.

Software needs my fork of the RadiationWatch library, the ITDB02 library as well as the UTouch library

Touchscreen-controlled Arduino Geiger Counter – [Link]

An Edison-Based Password Keeper

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by DanielGilbert @ instructables.com:

With this instructable, I try to solve a problem everyone has: Passwords. Accounts. Logins. All the stuff you need to get into your favourite social media site, shopping site, blog or forum (they still exist, huh?). Now, there are several ways to control your accounts:

Use always the same credentials: No. Never ever do that. Seriously. If your account gets hacked on one site, chance is that the hacker(s) will try the credentials on other, popular sites also. Don’t underestimate them. They are smart. Criminals, but smart.
Use a software on every device: You can do that. And if you are lucky, this software will run forever on this device. But maybe, at some point, you will get rid of the devices. Uh-oh…
Write them down: Yepp. You can do that. But – everyone who finds your book will be able to read your passwords. That wouldn’t be that great, right?

To solve all of this, I created a device called “The PinTin Nano”. It has it’s name from the fact that it’s a) pretty small and b) fits in a mint tin. I love that, because that makes the device easy to carry around.

An Edison-Based Password Keeper – [Link]

Experiments with 2.4″ TFT

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Rui Cabral tipped us with his latest project. He writes:

Lately I’ve been testing a small 2.4″ TFT display PBC ILI9341 with touch and bought on ebay for less than 8euros!

This graphic display is an excellent solution for both small projects and for more advanced projects since it includes SD card connector to access stored images.

This display has a resolution of 240×320 RGB.

Experiments with 2.4″ TFT – [Link]

Arduino Thermometer With DS18B20

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by KonstantinDimitrov @ instructables.com

Hello, everyone !!! Today I’m going to show you how to make Arduino thermometer with DS18B20 digital temperature sensor, builded on breadboard and connected together with jumpers.

Info about the sensor – DS18B20 is 1-Wire digital temperature sensor from Maxim IC. Reports degrees C with 9 to 12-bit precision, -55C to 125C (+/-0.5C). Each sensor has a unique 64-Bit Serial number etched into it – allows for a huge number of sensors to be used on one data bus.

Arduino Thermometer With DS18B20 – [Link]

Touchscreen Arduino Library for XPT2046 Touch Controller Chip

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XPT2046_Touchscreen is a library for the XPT2046 resistive touchscreen controllers used on many low cost TFT displays.

Touchscreen Arduino Library for XPT2046 Touch Controller Chip – [Link]

Fastest, highest-resolution DLP chipset for 3D print/lithography

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by Graham Prophet @ edn-europe.com:

With its latest micro-mirror-based light-steering chip, Texas Instruments says, applications developers can innovate with more than 4 million micromirrors to enable high throughput digital imaging applications.

Presented as its highest speed and resolution chipset for 3D printing and lithography applications, TI’s DLP9000X digital micromirror device (DMD) and the DLPC910 controller, offers developers more than five times the speed at continuous streaming compared to the existing DLP9000 chipset.

The DLP9000X DMD delivers the highest streaming pixel speed in the TI DLP Products portfolio at over 60 gigabits per second.

Example application areas for the DLP9000X include 3D printing, direct imaging lithography, laser marking, LCD/OLED repair and computer-to-plate printers, as well as 3D machine vision and hyperspectral imaging.

Fastest, highest-resolution DLP chipset for 3D print/lithography – [Link]

How to Set Up the DHT11 Humidity Sensor on an Arduino

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by circuitbasics.com:

Because of their low cost and small size, DHT11 humidity and temperature sensors are perfect for lots of different DIY electronics projects. Some projects where the DHT11 would be useful include remote weather stations, home environment control systems, and agricultural/garden monitoring systems. The DHT11 is a digital sensor that lets you easily get relative humidity and temperature readings in your projects. In this post, I’ll first go into a little background on what humidity is, then I’ll explain how the DHT11 measures humidity. After that, I’ll show you how to connect the DHT11 to the Arduino and give you some example code so you can use the DHT11 in your own projects.

How to Set Up the DHT11 Humidity Sensor on an Arduino – [Link]

Temperature controlled coolbox

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by nusnel @ instructables.com:

For my monthly maker column in Dutch newspaper “De Volkskrant”, I made a coolbox in which you can control the temperature in three separate compartments to keep craft beer at just the right temperature.

The contraption I build uses three Peltier-elements to cool, an old desktop computers power source, an LCD to show both the measured and the set temperature and finally an Arduino to tie it all together.

Temperature controlled coolbox – [Link]