Tag Archives: display

OpenSource Arduino OLED Clock with temperature measurement

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Konstantin Dimitrov has published his Arduino OLED clock which uses DS1307 real time clock module and TMP102 temperature sensor that communicate through I2C.

This clock will not only show you exact time and date but also it will show you the ambient temperature in both Fahrenheit and Celsius, with accuracy of 0.5°C (-25°C to +85°C) and with resolution of 0.0625°C. The pages are changing on every 10 seconds, but you can change that.

OpenSource Arduino OLED Clock with temperature measurement – [Link]

Wi-Fi and OLED Upgrade for MightyOhm Geiger Counter

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Dan Watson @ syncchannel.blogspot.com wanted to have more fun with his MightyOhm Geiger Counter so decided to add an OLED display and Wifi capability to it. To achieve that he modified the counter, added a Feather HUZZAH ESP8266 with OLED FeatherWing and wrote some code. The process is documented on his blog:

I assembled my Geiger counter kit from MightyOhm some time ago. It’s a very fun kit and the finished counter looks awesome. Oh, that Geiger-Muller tube sitting on that yellow PCB! I’ve always wanted to modify it somehow and add functionality. Today I realized that an Adafruit Feather sits PERFECTLY where the AAA battery holder normally goes. Doesn’t it look like they belong together?

Wi-Fi and OLED Upgrade for MightyOhm Geiger Counter – [Link]

How to use the 4.3′ E-Paper display with Arduino

educ8s.tv has uploaded another tutorial on how to use a e-paper display with Arduino. Source code is provided.

Electronic paper and e-paper are display technologies that mimic the appearance of ordinary ink on paper. Unlike conventional backlit flat panel displays that emit light, electronic paper displays reflect light like paper. This make them more comfortable to read, and provide a wider viewing angle than most light-emitting displays. Many electronic paper technologies hold static text and images indefinitely without electricity.

How to use the 4.3′ E-Paper display with Arduino – [Link]

LED Tester with LCD Display

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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 and updates the display. Build details on the link below.

The adjustment trimpots are on the end of the tester. The trimpot with the thumb dial is to indicate the target circuit voltage (usually 5 V or 3.3 V). The other trimpot requires a screwdriver, because it controls current, which I usually want to keep at 20 mA.

LED Tester with LCD Display – [Link]

Remote WiFi DHT11 Temperature an Humidity Display

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BoianM @ instructables.com shows us how to build a remote temperature and humidity display using DHT11 sensor and two ESP8266 modules. To program the ESP8266 modules a visual programming software is used.

The advantage of the ESP8266 over Arduino and other controllers is the builtin Wi-Fi. In this Instructable I will show you how with the help of Visuino you can use two ESP8266 modules to make a remote LCD Display for Temperature and Humidity DHT11 sensor.

Remote WiFi DHT11 Temperature an Humidity Display – [Link]

Arduino TFT Forecast Weather Station with ESP8266

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tufantas @ instructables.com has build a weather forecast display using  Arduino Mega 2560, 7″ inch TFT display and ESP8266 Wifi module. The display shows 3 days weather forecast, Current weather conditions, Current wind directions & speed with analog gauge meter, Indoor temperature and NTP time.

Arduino TFT Forecast Weather Station with ESP8266 – [Link]

Photoplethysmography – IR Heart Rate Monitor

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SteveQuinn @ instructables.com show us how to create a heart rate monitor using an IR phototransistor and Arduino and display the data on a TFT screen.

This Instructable documents how to create a simple heart rate monitor using Photoplethysmography with an IR phototransistor via transmissive absorption using the Arduino to process the pulsatile data and display live results via a TFT screen.

To use the source code and create the necessary circuitry you will need a reasonable grasp of electronics, knowledge of the Arduino, a DMM and some patience.

Photoplethysmography – IR Heart Rate Monitor – [Link]

Arduino Voltmeter Prototype

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Proto G @ instructables.com has build an Arduino based digital voltmeter that is able to measure up to 30V and it’s using an OLED LCD display.

In this instructable, I’ll show you how to make a simple arduino voltmeter. It can measure voltages in excess of 30VDC depending on how you configure it. The smaller the voltage range you want to measure, the more accurate that your meter will be. This project is going to be apart of a gauss meter that I am making to measure magnetic fields strength as well as magnetic field polarity

Arduino Voltmeter Prototype – [Link]

Portable Ultrasonic Range Meter

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ManosM @ instructables.com has build a portable ultrasonic range meter based on ATMega328 mcu and LCD display.

This device is a small, portable ultrasonic range meter using an ATMega328 microcontroller, an ultrasonic module and a 4×20 LCD for ranging distances in meters and inches.

Portable Ultrasonic Range Meter – [Link]

Smart Watch

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Matthew Filipek from Cornell Univercity has build a nice smart watch with 1.7 inch touch screen, SD card, Bluetooth module and various apps.

One of the main inspirations for this project was Jared Sanson’s implementation of a DIY smartwatch (REF 0). With several design iterations, he was able to produce a watch in a very small package that can communicate with a PC via USB HID, features an OLED display, and has support for an accelerometer. As my project was to be completed in the span of a mere month, several of the components I got were purchased for their ease of use rather than their compactness.

Smart Watch – [Link]