Tag Archives: OLED

Therm: a Tiny PID Controller

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by Ethan Zonca @ protofusion.org:

Therm is a very small PID controller with an OLED display, thermocouple interface, and USB port. It can switch an external solid-state relay for driving large loads, or a transistor for driving small loads. When attached to a computer, it enumerates as a USB serial port for easy control and logging of data. The design is based around a STM32F0 microcontroller and the MAX31855 thermocouple-to-digital IC (note: an RTD version of therm is in the works).

Therm: a Tiny PID Controller – [Link]

Raspberry Pi OLED Internet Bandwidth Display

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by Archie500 @ instructables.com:

In a very brief summary it works as follows: The Raspberry Pi uses SNMP (Simple Network Management Protocol) to get the WAN data rates from the router and then displays these graphically on the OLED screen.

The Raspberry Pi was already set up as our media player and is next to the television. The OLED display was inexpensive and can be bought from a number of places including eBay.

Raspberry Pi OLED Internet Bandwidth Display – [Link]

OLED displays for still better prices!

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Maybe it´s the right time for you to also consider usage of OLED displays in your applications.

The most advanced display technology – OLED, goes ahead into many industrial products thanks to its advantages. From a certain point of view exactly the industrial environment properly checks features of displays and especially in critical applications extreme thermal resistance a big advantage (immediate response even in frost).

As it uses to be, new technologies are rarely cheap. In case of OLED we can say about significantly more affordable price than a few years ago. For example even despite currently disadvantageous EUR/USD exchange rate, when many components become more expensive, renowned OLED character displays from company Electronic Assembly became cheaper during last weeks.

Naturally even LCD displays still have their undisputed advantages, for example a very low power consumption (EADOG series) and depending on type also a legibility even without a backlight. However in applications where you consider OLED vs. LCD (with a backlight), in majority of cases an OLED is a better choice. OLED is a better choice mainly because of unbelievably wide viewing angle, immediate response and a great contrast, where a black is truly black.

In our offer we have character OLED displays EAW series but also other universally usable OLED displays.
Some types of the EAW series are available in 2 versions – yellow/green and ice white. Detailed information will provide you the EAW flyer and the EAW datasheet.

OLED displays for still better prices! – [Link]

ESP8266: Meet Thirsdee, the Intelligent Plant Helper

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by Dani Eichhorn :

It’s amazing what you can do with just a few components: a load cell, a high gain analog-to-digtal converter and a NodeMCU module. You can for instance measure the water consumption of your dear plants. If you combine the previous mentioned components with a OLED display you can even visualize the current water level in the plant pot. And if the level reaches a critical low you can have it send an alarm message to your cellphone. Now connect everything and give it a name: Thirsdee is born!

ESP8266: Meet Thirsdee, the Intelligent Plant Helper – [Link]

Double RC servo tester with OLED display

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Dan blogged about his Servo tester with OLED display project:

The problem is simple: I need to have a reliable and easy to use servo tester, that I can use to test/play with a standard RC servo or ESC or anything else that uses the same control protocol. This necessity has arisen again quite recently, while working on the 2nd iteration of my ball balancing device.

Double RC servo tester with OLED display – [Link]

Arduino Vacuum Gauge Display

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Initial testing. Ignore the humidity sensor, that was for something else.
The vacuum gauge outputs 0-10VDC. This had to be changed to a 0-5VDC range using a potential divider so it was compatible with the Arduino. Initial build used a 10k pot in place of a vacuum gauge to make it simpler.

Arduino Vacuum Gauge Display – [Link]

Piccolino: Arduino Compatible + WIFI + OLED + SRAM + SD CARD

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World’s first compact Arduino with integrated OLED+WIFI+SD CARD+32K SRAM for your 21st century projects! Play, create, embed, invent.

Piccolino (Italian for “tiny”) is a small, low-cost yet powerful programmable controller with an embedded OLED display and WIFI connectivity that you can program using existing tools like the Arduino IDE environment and the ESPlorer IDE. It uses the new ESP8266 LUA powered WIFI module which takes care of all the WIFI connectivity workload requiring only 3 lines of code in your sketches to establish a wireless connection. Furthermore, it can be configured both as an Access Point or a Station, so you can easily develop mobile device controlled appliances.

Piccolino: Arduino Compatible + WIFI + OLED + SRAM + SD CARD – [Link]

SSD1306 OLEDs – DMA Library for Arduino Due

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by grav-corp.com:

So we’re always cooking up hot new hardware in the Grav Corp labs. Recently, we’ve been working on a project using a 128×64 OLED screen with the SSD1306 controller. Adafruit is a good source of these displays, with an excellent library written by Limor Fried. The Adafruit_SSD1306 library makes it simple to use these displays with a variety of Arduinos, using either software or hardware SPI. However, we wanted a speed boost, and the Due looked like it could deliver, with its DMA (Direct Memory Access) capability.

SSD1306 OLEDs – DMA Library for Arduino Due – [Link]

Internet connected smart humidifier

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Martin’s DIY Internet connected smart humidifier project:

The project uses a DHT22 temperature sensor mounted to the side of the enclosure for better ventilation and reliable reading:
I threw in a ultra-cheap I2C OLED status display to get a visual reading. Milling the box so that the OLED shows was pretty nasty, hated it. I cut a piece of paper and placed it on top of the cover, below the transparent lid to cover up for the lousy milling job
The humidistat switches on and off the humidifier as needed, the humidifier itself is plugged in to a plug in the relay. The  auto detects when water is out and stops, so I didn’t have to care about that.

Internet connected smart humidifier – [Link]

Small graphic OLED displays for great prices

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Even your device can be more user friendly thanks to various pictograms displayed on Winstar WEG series displays with a great contrast and viewing angle.

100×16 pixels at series Winstar WEG010016 isn´t that much at the first sight. But when we realize, that such display represents a sort of a “replacement” or “upgrade” of a character display (2×16-20 chars.), we´ll find, that it has wide possibilities of usage and it´s able to display much more than a character one.

Naturally, even a character display is able to display pictograms, but they´re limited by a given row or a matrix creating a given character. On the other hand, at a graphic display the whole area is available and naturally – it´s still able to display characters too.

Similarly like WEH series character displays, even the WEG series supports 4/8-bit interface „6800“/“8080“ and they have a built-in universal controller WS0010.
When we add advantages of OLED displays and attractive price, we have in hands interesting, universally usable display.

Small graphic OLED displays for great prices – [Link]