Tag Archives: OLED

Four-Channel Thermometer on OLED display

David Johnson-Davies @ technoblogy.com build a four-channel thermometer that monitors the temperature at four temperature sensors, and gives a continuous readout on a small 128×32 OLED display. It’s a useful project for various applications like PSU or PC monitoring. The article describes 1-wire and code in details.

It could be used in any application where you want to monitor multiple temperatures, such as in controlling a greenhouse, checking the output transistors in a power amplifier, monitoring key points in an overclocked gaming PC, monitoring the chips on a Raspberry Pi, or checking the temperature in different rooms in a home.

Four-Channel Thermometer on OLED display – [Link]

ESP32 NTP OLED clock

@ blog.danman.eu build a OLED display NTP clock and document his process on his blog:

As a first project with my new ESP32 module with OLED display I chose to build OLED clock. I thought I’ll just find some existing code, upload it and it’s done. There are a few such projects for ESP8266 in NodeMCU. So I started with NodeMCU upload.

ESP32 NTP OLED clock – [Link]

GAME BYTE – Retro gaming system

Game Byte the open source gaming system for creating, sharing, and playing games is live on kickstarter. Over 100 free games. Make your own games.

Game Byte is an open source gaming system for creating, sharing, and playing games. It’s SMALL! About the size of a credit card and fits in your pocket so you can take it with you wherever you go. You can play one of the over 100 free games available or learn how to create your own. The built in microSD card slot allows you to store your games on an SD card without plugging into a computer.

Digital UV-meter with OLED Display

@ instructables.com build a nice VU meter using Arduino and an OLED display.

Hello, instructable. Today I will tell you how to make a simple digital VU meter (sound level meter) using Arduino and OLED displays and 2 resistors by yourself (DIY). The device is quite simple, for beginners it will be a rewarding experience.

Digital UV-meter with OLED Display – [Link]

ATtiny85 Tiny OLED Watch

An ATtiny85 and a 64×48 OLED display hand clock:

This is the third in my series of minimalist watches based on the ATtiny85. This version displays the time by drawing an analogue watch face on a miniature 64×48 OLED display. It uses a separate crystal-controlled low-power RTC chip to keep time to within a few seconds a month, and puts the processor and display to sleep when not showing the time to give a battery life of over a year.

ATtiny85 Tiny OLED Watch – [Link]

RELATED POSTS

Soldering pen for Weller RT tips with OLED display

vlk @ hackaday.io build a very nice soldering pen with a OLED display.

I found some projects where is used Weller soldering tips designed for WMRP soldering iron with standard 3.5mm jack and inside the tip is also thermocouple for sensing temperature. These tips are not so cheap but the quality is really great, especially for fine soldering.

Hardware design is based on similar projects but with some modifications and improvements. Also my request was to make the hardware small as possible to fit into handle and capable to supply from hobbyist LiPO battery.

Soldering pen for Weller RT tips with OLED display – [Link]

Using I2C SSD1306 OLED Display With Arduino

Sometimes it may be necessary to use a display when making a hardware project, but one confusing thing is the size of the display and the required pins to control it. This tutorial will show you how to use a small I2C OLED display with Arduino using only two wires.

The display used in this tutorial has a very small (2.7 x 2.8cm) OLED screen, that is similar to Arduino Pro Mini size, with 128 x 64 screen resolution. The OLED Driver IC is SSD1306, a single-chip CMOS OLED/PLED driver with controller for organic / polymer light emitting diode dot-matrix graphic display system. The module has only 4 pins, two of them are the supply pins, while the others are SCL and SDA, I2C protocol pins, which will be used to control the display.

Using I2C SSD1306 OLED Display With Arduino – [Link]

Pixel 2.0, Arduino Zero-Like Board With Smart Display

The Pixel is an Arduino-compatible smart display, combining a 32-bit Cortex M0+ MCU with 32K of RAM, a 1.5″ 128×128 color OLED screen, and a microSD slot all in one package.

This is Rabid Prototypes’ second iteration of Pixel, which originally raised nearly $10,000 on Kickstarter back in 2015. The board offers a number of potential use cases, ranging from wearable devices, to sensor data monitors, to retro video game consoles.

The Pixel is compatible with Arduino’s SPI and SD libraries, as well as Adafruit’s graphics library, which provides functions for blitting images, drawing primitives like lines and circles, and even includes bitmapped font support.

Additionally, if you ever need to modify the fuses or bootloader, the Pixel features a standard SWD header that can be used with Microchip’s Atmel-ICE development tool.

Here are the technical specifications of Pixel:

  • Microcontroller: Atmel ATSAMD21G18 ARM Cortex M0+
  • Clock speed: 48 MHz
  • Operating voltage: 3.3V
  • I/O pin limits: 3.3V, 7 mA
  • Digital I/O pins: 14, with 12 PWM
  • Analog input pins: 6, 12-bit ADC channels
  • Analog output pins: 1, 10-bit DAC
  • Flash memory: 256 KB
  • SRAM: 32 KB
  • Voltage regulator: 3.7V – 5.5V input / 3.3V, 300mA output
  • PCB Dimensions: 1.8 x 1.8″ (46mm x 46mm)
  • Display : 128×128 16-bit color 1.5″ (38mm) OLED w/ SSD1351 driver

Pixel is now live on Kickstarter! you can get your own Pixel 2.0 for $75 or two for only $135. The campaign still has 12 days to go, check its video to know further details about Pixel 2.0:

Source: Hackster Blog

 

0.91 inch OLED display targets wearables

Winstar’s WEO012832F is a small OLED display featuring 128×32 pixels in a 0.91 inch diagonal screen, suitable for wearable devices. by Julien Happich @ edn-europe.com:

The WEO012832F module comes with a built-in SSD1306BZ controller IC, it supports an I 2C interface and a 14-pin FPC pinout.  Standard emitting colours for the WEO012832F are available in white, sky blue and yellow. The WEO012832F features a COG structure OLED display, the built-in voltage generation only requires a single 3V power supply. This lightweight 30.0×11.5×1.45mm OLED module can operate at temperatures from -40℃ to +80℃.

0.91 inch OLED display targets wearables – [Link]

Thermometer That Pushes Arduino to Its Limits

by gundolf @ instructables.com:

Starting playing with Arduino seems simple enough. You can find all sorts of tutorials, instructables, wiring and code examples for pretty much every sensor, component, or module available. So far so good. But when the time comes for building a more complex device, the troubles start. The tutorials for adding multiple modules to Arduino and then working with them efficiently are very scarce. Therefore, with this instructable, I will try to help with just that. So here comes the Arduino thermometer/hygrometer with a GUI, designed to push Arduino to its limits.

Thermometer That Pushes Arduino to Its Limits – [Link]