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Questions tagged [oled]

49 questions
5
votes
2 answers

Arduino Freezes (probably because of I2C) - Need help to write robust script

Arduino Pro mini 3.3V stucks few hours after startup. After repowered, it begins to stuck within a few seconds. If I wait long enough before turning it on it stucks little later for example now it lasted 45 seconds before stuck. Whenever it is stuck…
CaveScientist
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3
votes
1 answer

Adafruit OLED 7-pin display - Abbreviations

I can't remember for the life of me how exactly I set up this screen in previous models, partially because the references I'm using in my code have different names from the pins on the Adafruit display. My code identifies the following digital pins…
Tyler Wallentine
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2
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1 answer

OLED and Wifi not working together on ESP8266 Heltec NodeMCU

I have this ESP8266 Heltec NodeMCU board with OLED. The pins are described here. I have the following problem. The both OLED (with u8g2) and Wifi work fine individually. There is a problem getting them working together. In particular, the following…
Fabian
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2
votes
0 answers

GPS speedometer with NEO 6M - latency issue

I have built a speedometer, based on this youtube video: https://www.youtube.com/watch?v=gKuJxjxNP-k&t=34s The speedometer is for a car, so it needs to be in real-time and accurate, with the actual speed that the car reads. The speedometer is built…
cool bean
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2
votes
1 answer

Functions delaying gesture sensor recognition

I am working on a simple little robot to cure my boredom and all it has is a 64 x 32 OLED for the eyes, and a PAJ7620 Gesture recognition sensor with a Seeeduino Xiao as the main board. Basically, when people swipe above the head where the sensor…
Renier Jr.
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2
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0 answers

Scrambled Text on SSD1306 Using ESP32-S2

SSD1306 OLED display connected to an ESP32-S2 over hardware I2C. I noticed that the text will sometimes get scrambled or lag during a screen update. When left running long enough, the screen will get stuck and stop updating, despite serial monitor…
subcanny
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0 answers

Arduino OLED ssd1315 graphic print questions

I’ve tried to create a system that the rotary sensor as an input and use a 0.96 inch Oled as an output (first pic), try to show the voltage measurements and performance test using a small bar graphic. And I use this code #include #include…
Pei-shan Tsai
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2
votes
1 answer

Why is the Adafruit splashscreen logo not displayed properly?

I'm working with a 128x64 Oled display. I have just installed the Adafruit library and I'm running some sample codes. I have not modified the sample code in anyway yet just testing if the oled display is working but I've noticed that the…
Emma
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2
votes
1 answer

Why SSD1306 OLED display get scrambled text when printing messages from separate tasks in RTOS? (revised)

ESP32 with RTOS, test app with 2 independent tasks. Each prints a message to OLED display. Why text gets frequently scrambled? Mutex have been used to share display resource. #define DEBUG_ESP //comment out to deactivate debug console…
Paulo Borges
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2
votes
0 answers

Sending a JPEG from one Arduino to another

I've got an Arducam OV2640 which takes a picture as a JPEG that I'd like to send to another Arduino using a pair of nRF24L01 wireless transceivers to eventually display it on an SSD1351 OLED. Unfortunately, because the JPEG data is so large, it's…
JShoe
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2
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1 answer

OLED 'SH1106_WHITE' was not declared in this scope

I was following FREE Functions to draw graphs on OLED displays on YouTube but mine OLED display doesn't support Adafruit_SSD1306 library,but it works on Adafruit_SH1106.h driver. The code that is shared with YouTube video /* This program provides…
VA splash
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2
votes
1 answer

I want a bar type display for my Arduino Project

I am trying to make a smart table project. But I have stumbled upon one problem, that is I don't know which display should I use. I need a display that has roughly aspect ratio of 2:1 but also has a relatively high pixel density. I have purchased a…
shafiyyah
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2
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0 answers

OLED display on I2C causes esp8266 to reset

I have connected two temp sensors and an OLED display to a NodeMCU using I2C. When the program reaches the instruction to print the measurements on the display the program crashes and NodeMCU resets itself. In the serial monitor I see "rst cause…
Zaffresky
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2
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3 answers

240*320 transparent OLED display with Arduino

A long time ago I ordered this transparent OLED display (from a chinese supplier on alibaba) planning on interfacing it with an Arduino but didn't really have the skills to get the project going. I have the datasheet (linked below) for the driver…
Vosem Media
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1
vote
1 answer

Code review for timer using RTC and OLED screen

I am building a small art project to display my current age with an accuracy of 1/100th of a second. I am using a XIAO SAMD21, a DS3231 RTC, and a 128x32 OLED screen. Here is what it looks like right now without the battery: My aim is to fit this…
Mir
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