Tag Archives: display

ESP8266 weather display – work in progress

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Markus Hirsch is working on a ESP8266 weather display using an AVR mcu and an OLED display:

This is a little weather monitor. It has a 2.2″ color display and is powered by an AVR and the ESP8266. The AVR controles the display. The ESP has a custom firmware written in the Arduino IDE and provides all the weather data in a neat and very simple pre-parsed protocol. The AVR can obtain different data via a simple UART command. It is still in development. A 512kB serial SPI flash provides all the icons, images and palette data.

ESP8266 weather display – work in progress – [Link]

Raspberry Pi Zero Information Display

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Frederick @ frederickvandenbosch.be has build an Internet connected OLED display using Raspberry Pi Zero module.

After last week’s Pi Zero mod, I thought I’d try a slightly more useful project. Using an Adafruit OLED display, two push buttons, a wifi dongle and a Pi Zero, I made an internet connected information display. The information could be anything: time and date, weather, social media status, etc … The two push buttons are used to cycle through the data and trigger certain actions.

Raspberry Pi Zero Information Display – [Link]

ESP8266 Weather Widget

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deba168 @ instructables.com has build an ESP8266 based OLED display weather widget.

This is an ESP8266 based Weather Display unit which retrieve localized weather information from http://www.wunderground.com/ by WLAN and display it on a 128×64 OLED Display.

ESP8266 Weather Widget – [Link]

Arduino Tutorial: Using the Soil Moisture Sensor along with a Nokia 5110 LCD display

Using the soil moisture sensor with an Arduino can’t be easier. Adding a Nokia 5110 LCD display makes things more professional since we can visually check the moisture levels of the soil.

The sensor can measure the levels of moisture in the soil. So it can be extremely useful if you want to monitor the soil moisture of your plants or automate the watering procedure. Let’s see the project we are going to build today. I have one cup in front of me with dry soil. If I place the sensor in the cup we can read a low soil moisture value at the Nokia 5110 display. If I pour some water in the cup you can clearly see that the moisture levels rise. The project is working fine and we can visually check the moisture levels of the soil. Of course this is just a demonstration of the sensor, I am going to build more useful projects in the future with this sensor. Let’s now see how to build this simple project.

Arduino Tutorial: Using the Soil Moisture Sensor along with a Nokia 5110 LCD display – [Link]

Arduino Digital Capacitance Meter

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by braulio777 @ instructables.com

This project lets you measure capacitors in an alone range of measure from 0.000pF to 1000uF. That is, a 16×2 LCD Display will be displaying a sole scale from 0.000pF to 1000uF whose main components will be an Arduino Uno and a 16X2 LCD Display.

Arduino Digital Capacitance Meter – [Link]

DIGITAL PANEL METER – VOLTMETER

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Digital Panel Meter performs digital processing on or conversion and display of voltages, currents, other analog signals, and pulse signals. This project is based on popular ICL 7107 IC, which is analog to digital converter and has been designed to drive 7 segment LED display. The ICL7107 is high performance, low power, 3, 1/3 digit A/D converter. Included are seven segment decoders, display drivers, a reference, and a clock. This DPM project may be used in a wide variety of configurations Full scale reading of +/- 199.9mV (200mV)

Features

  • Supply 5V DC @ 80mA.
  • Range 0 to 199.9mV (200mV)
  • Low Current consumption
  • Low input leakage current because external reference
  • Single supply operation
  • On board Jumpers for range display
  • Auto Zero and auto polarity within IC
  • Supply Input CN2 5V DC
  • Test Voltage CN1 0-200mV
  • PR1 Preset for reading calibration.

Digital Panel Meter – Voltmeter – [Link]

Building a SmartWatch

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Benjamin Blundell has been working on his DIY smart-watch:

I have an issue with smart-watches. Watches in general fall into one of two categories: a tool to tell the time, or a fashion statement. Increasingly, I believe the latter category is larger than the first. With the advent of the iWatch, Pebble and the like, fashion and making a statement has moved into technology. It’s not quite a new thing but nevertheless, it’s something I’m not too fond of. My solution? Make your own smartwatch.
There is a precedent for this. Steve Wozniack sports a pretty fly nixie tube watch which he made himself. It’s pretty cool, but also a statement of sorts too. I’ve been meaning to up my game with electronics anyway, so I’ve been working on a few initial prototypes.

Building a SmartWatch – [Link]

RELATED POSTS

Wrist Mount Digital Altimeter

This project is a simple wrist mount digital altimeter which is a device used to determine altitude. This design uses atmospheric pressure to calculate the altitude of its location. The lower the atmospheric pressure, the higher the altitude. The project is comprised of a microcontroller (MCU), an 84×84 pixel graphic LCD and a barometric pressure sensor.

The barometric pressure sensor used in the design is the MS560702BA03-50 from TE Connectivity Measurement Specialties. It consists of a piezo-resistive sensor and a sensor interface IC. Its main function is to convert the uncompensated analogue output voltage from the piezo-resistive pressure sensor to a 24-bit digital value, as well as providing a 24-bit digital value for the temperature of the sensor. It is optimized for altimeters and variometers with an altitude resolution of 20cm. The MS560702BA03-50 measures the atmospheric pressure on its location then converts it to a 24-bit value through its internal ADC. The sensor reading is then transmitted to the MCU through SPI. Then the MCU calculates the altitude by using the pressure reading. The calibration of an altimeter follows the equation z = cT log (Po /P), where c is a constant, T is the absolute temperature, P is the pressure at altitude z, and Po is the pressure at sea level. The calculated altitude is then displayed through an 84×84 pixel graphic LCD which is mostly found on old phones. The circuit is powered through a 3.3V battery.

The altimeter is used to aid navigation and is mostly used in skydiving, mountaineering and hiking applications. It is usually hand-held or in wrist-mount form for the ease of use. Altimeters can also be found in aircrafts such as planes and helicopters and others that needs altitude indication.

Wrist Mount Digital Altimeter – [Link]

LED Wave Display

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by 17bhuey @ instructables.com:

In order to create this project, many physical materials are necessary, a lot of which will not be found lying around at home. In order to do this project, you should go out to computer stores or look online for these products. Keep in mind that you can upgrade to larger LED boards or faster arduinos, but that would require some modification of this tutorial as the coding, wiring, etc, changes with the addition of different products. Overall, this project is a fun way for you to practice your engineering, circuitry, and computer science skills while making a device that shows off your music taste in a new light.

LED Wave Display – [Link]

ATtiny85 and SSD1306 wearable display

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by AwesomePCB @ instructables.com:

How to make wearable display – OLED SSD1306 display run by ATtiny85

Step by step tutorial, with no steps to skip.

The main goal of this tutorial is to show how to make wearable display run by Attiny85 and OLED display SDD1306.

Due to running campaign for ATtiny25/45/85 PCB TINY CHEAP VERSATILE Arduino compatible on Indiegogo I did prototype of wearable display base on natural leather, to show what is possible with ATtiny25/45/85 PCB.

ATtiny85 and SSD1306 wearable display – [Link]