Using Low Cost Hardware to Enhance the User Experience
LCD/OLED

Using Low Cost Hardware to Enhance the User Experience

Ken Boak discuss how to build a graphic user interface using cheap TFT toughscreen displays. This article is about using their lowcost graphics co-processor IC to provide a neat user interface for any low-end microcontroller. These days, when you can buy a 7" tablet for $50, there...

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BIG Clock Made From Six 3″ 7-Segment LCDs
LCD/OLEDMcu

BIG Clock Made From Six 3″ 7-Segment LCDs

Pierre Muth build a nice big clock using 3" 7-segment LCD displays. The clock is driven by a PIC18F87K90 and a few other components are used. He writes: We need clocks. Once you have passionate activities which absorbs all your attention, if you want to keep contact with the social...

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MAX038 Function generator
Test/Measurements

MAX038 Function generator

Milen @ instructables.com has designed a Function Generator based on the popular MAX038 and is controlled by ATMega328PU. Signal characteristics are displayed on a LCD screen. The digital features of the function generator were performed by one Atmega328 chip. Its functions are the...

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Smart Battery Charger
Arduino

Smart Battery Charger

gfwilliams @ instructables.com has build a smart battery charger that is able to individually charge each battery , automatically discharge them and give you an idea of their capacity. The charger is controlled by an Espruino Pico and results are displayed on a Nokia 5110 LCD...

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Arduino Controlled Modular Bench Power Supply
ArduinoPower supply

Arduino Controlled Modular Bench Power Supply

Denis @ envox.hr has designed a great PSU that is reliable, modular, programmable and of course Open source. The power supply is controlled by an Arduino and a touchscreen TFT screen is used to monitor and control it. It comes with a bunch of features you can check on the link...

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How to Set Up and Program an LCD Display on an Arduino
Arduino

How to Set Up and Program an LCD Display on an Arduino

circuitbasics.com has a nice tutorial on how to use a common Hitachi HD44780 LCD display on Arduino. Many of the functions available are discussed and shown in examples. In this tutorial, I will explain how to set up an LCD display on an Arduino, and show you (with examples) all of...

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3598
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LED Tester with LCD Display
Mcu

LED Tester with LCD Display

David @ robotroom.com build a microcontroller based LED tester with LCD display that shows the LED voltage, the current limit in mA, the desired led voltage and the calculated resistor value. The LED tester is based on ATtiny84 mcu which performs all the measurements and calculations...

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6149
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Battery Powered Frequency Meter (0 to 20kHz)
Test/Measurements

Battery Powered Frequency Meter (0 to 20kHz)

The circuit is a simple digital frequency meter that is made of a frequency-to-voltage converter and an analog-to-digital display converter that can be operatedfrom a single 9-volt battery. The TC7126 ADC generates the voltage required by the TC9400 FVC with internal regulators. The...

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