Pick a display by size, interface, and color need. A 0.96 inch OLED shows text on 128 by 64 pixels over I2C with 4 pins. A TFT adds color for graphs and images. A 7-segment module shows numbers with 2 pins. Check voltage and library support first. This guide compares the common Arduino displays.
What does a 0.96 inch OLED display show?
The SSD1306 OLED shows 128 by 64 pixels in white on black. It uses I2C with 4 pins: GND, VCC, SCL, and SDA.
It runs on 3.3 to 5 V and draws little current. It suits sensor readouts, clocks, and small menus.
When should you pick a TFT display?
A TFT adds 65K color for graphs, images, and gauges. Sizes run from 0.96 to 2.8 inch on SPI with 8 pins or fewer.
The ST7735 and ILI9341 chips have wide library support in Arduino. Pick TFT when the project must show color at a glance.
What is a 7-segment display good for?
The TM1637 shows 4 digits on a 0.56 inch display with 2 pins. It suits counters, timers, and clocks.
It uses CLK and DIO pins and runs on 3.3 to 5 V. Pick it when the project shows numbers only.
How do you wire an OLED to an Arduino?
Connect GND to ground, VCC to 5 V, SCL to A5, and SDA to A4 on a UNO. The display uses the I2C bus at address 0x3C.
Install the Adafruit SSD1306 library, then run the 128 by 64 example. It prints text in under 10 lines of code.
How do you wire a display to an ESP32?
An ESP32 uses 3.3 V logic, so power the display from the 3.3 V pin. The NodeMCU ESP8266 board has a built-in 0.96 inch OLED on the same pins.
Pick GPIO 21 for SDA and GPIO 22 for SCL on most ESP32 boards. The display library works the same on ESP32 and Arduino.
Which display suits a first Arduino project?
A 0.96 inch OLED is the right first display. It needs 4 wires and one library, and it shows sensor data at once.
Pair it with a UNO and a DHT22 sensor. The project reads temperature and prints it on the screen every 2 seconds.
Frequently asked questions
Can an OLED run on 5 V?
Yes. Most 0.96 inch OLED modules accept 3.3 to 5 V. Check the module label, since some boards are 3.3 V only.
How many pins does a TFT need?
A TFT on SPI needs 4 to 8 pins, based on the chip. The ILI9341 uses 8 pins with touch, and fewer without it.
What library drives an SSD1306 OLED?
The Adafruit SSD1306 library drives it on Arduino and ESP32. It includes examples for text, shapes, and bitmaps.
Can I use two displays on one board?
Yes, if they use different I2C addresses. The SSD1306 supports 0x3C and 0x3D, so two OLEDs can share one bus.
Parts used
0.96 Inch OLED Display Module, SSD1306, I2C, 128×64, for Arduino / ESP32 / ESP8266, $5.47. 0.96 inch OLED display module, SSD1306 driver, 128×64 pixels, I2C interface, 4 pins (GND, VCC, SCL, SDA), 3.3V-5V. Works with Arduino, ESP32, ESP8266, and Raspberry Pi. Choose yellow-blue, white, or blue display. Ships from NY, USA.
TFT LCD Display Module, IPS SPI, 0.96: 2.8 inch, ST7735/ST7789/ILI9341, $5.83. IPS TFT LCD display module, SPI, 65K color : 0.96 to 2.8 inch, ST7735/ST7789/ILI9341. 8 sizes. Ships from NY, USA.
TM1637 4-Digit 7-Segment LED Display Module, 0.56 inch, Blue / Green / Yellow, $6.21. TM1637 4-digit 7-segment LED display module, 0.56 inch, 2-pin CLK/DIO interface. Blue, green, or yellow. Ships from NY, USA.
NodeMCU ESP8266 Development Board with 0.96" OLED Display, ESP-12E, Micro USB, $11.37. NodeMCU ESP8266 development board (ESP-12E) with a built-in 0.96 inch SSD1306 OLED display, CH340 USB-serial, Micro USB, FLASH and RESET buttons. Works with the Arduino IDE. Choose white, yellow-blue, or blue display. Ships from NY, USA.
ESP32 DevKit V1 Development Board, 30-Pin WROOM-32, WiFi + Bluetooth, $11.99. Original ESP32 DevKit V1 development board, 30-pin WROOM-32 with dual-core processor, WiFi + Bluetooth, in Micro USB or Type-C versions, with or without breakout board. Ships from NY, USA.
UNO R3 Compatible Development Board, ATmega328P CH340G : USB / Type-C, $9.27. UNO R3 compatible development board with ATmega328P and CH340G USB-serial, 16MHz, 14 digital I/O and 6 analog inputs. Works with the Arduino IDE. USB-B or Type-C, with or without cable. Ships from NY, USA.
DHT22 / AM2302 Digital Temperature & Humidity Sensor Module, $5.96. DHT22 / AM2302 digital temperature and humidity sensor module. 0: 100% RH, -40 to 80°C, 3.3: 5.5V, single-bus output for Arduino and ESP32. Ships from NY, USA.
HC-SR04 Ultrasonic Ranging Sensor Module for Arduino, 2-450cm, with Mounting Bracket Options, $4.01. HC-SR04 ultrasonic ranging module for Arduino. 2-450cm detection range, 0.3cm precision, 5V. Sensor only or with acrylic mounting bracket. Ships from NY, USA.
Microcontrollers and Development
Related buying guides on Quality RC Parts
How to Choose the Right Display for Arduino or ESP32
How to Choose Displays for Arduino and ESP32 Projects
How to Use a 0.96 Inch SSD1306 OLED Display
Browse all the guides on the Quality RC Parts Drone Guides hub, or start at the Quality RC Parts store.
Sources
Quality RC Parts stocks parts in New York, USA and ships in-stock orders in 1-2 business days.
Last updated: 2026-11-10.