Questions tagged [oled]
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49 questions
0 votes
1 answer
305 views
SSD1306 i2c OLED display - not able to show images properly
So I am using this 0.96" i2c yellow/blue OLED display: https://www.makerhero.com/produto/display-oled-0-96-i2c-azul-amarelo/ and an Arduino UNO clone. I have generated an image using this site ...
- 123
0 votes
1 answer
119 views
Error: void value not ignored as it ought to be done = radio.read(&Irms, sizeof(float));
Good morning everyone, I had this sketch that worked now when loading the program gives me an error: #include <Wire.h> #include <SPI.h> #include <nRF24L01.h> #include <RF24.h> ...
- 9
1 vote
1 answer
209 views
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 ...
- 113
2 votes
1 answer
306 views
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 ...
- 171
1 vote
2 answers
386 views
DHT20 and OLED display not working together
I am trying to get my DHT20 and OLED (both from the Arduino Sensor Kit) to work at the same time. I am able to get them working separately with their respective test codes, but when I try to combine ...
2 votes
0 answers
648 views
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 ...
- 31
2 votes
1 answer
98 views
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, ...
- 99
0 votes
1 answer
102 views
NodeMCU code that both display OLED and control WS2812 LED Ring
I'm trying to make a project using NodeMCU that show pictures in small OLED screen and also controlling WS2812 LED Ring. I manage to do each of them separately but I'm not sure how to mix them ...
- 149
5 votes
2 answers
1k views
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 ...
- 151
2 votes
0 answers
630 views
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 ...
- 21
1 vote
0 answers
100 views
Arduino sketch doesn't work when uploaded to arduino nano and OLED display shows npothing (possible issue: lack of memory)
I need some hand here. I wrote some code for a small arduino console-like device that has five pushbuttons, 128x64 I2C OLED display and arduino nano. And it doesn't work when uploaded to arduino nano -...
- 19
0 votes
1 answer
2k views
How to scroll text on an OLED display using only the SSD1306Wire library?
I'm a 13 years old boy and I am doing a project with esp01 and an OLED screen to display project ideas on the OLED with the ChatGPT API. The answer is displayed on the OLED but I would like it to ...
- 115
-1 votes
1 answer
836 views
Carbon dioxide sensor MG 811
I am using MG811 carbon dioxide sensor with ESP8266 module. CO2 values is being read inside closed room. The value comes around 400 ppm. Using CO2 generator does not make increase in reading. Checked ...
0 votes
1 answer
227 views
Temperature is not updated on OLED screen - Grove components
I am using 2 grove components in order to display a temperature. I use an I2C High Accuracy Temperature Sensor - MCP9808 and an OLED Screen using this script: #include <U8g2lib.h> #include <...
- 131
2 votes
0 answers
1k views
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. ...
