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HiLetgo 0.96" ESP32 OLED ESP-WROOM-32 ESP32 ESP-32 OLED WiFi Bluetooth Development OLED Display for Arduino AP STA

4.1 4.1 out of 5 stars 47 ratings
$13.49
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Purchase options and add-ons
Brand HiLetgo
Memory Storage Capacity 2 MB
Connectivity Technology Bluetooth, Wi-Fi
Wireless Communication Standard Bluetooth
Processor Count 2

About this item

  • Feature: Integrated antenna and RF Barron
  • Characteristic: 2.4 GHz dual-mode Wi-Fi
  • Characteristic: Bluetooth low power technology
  • Characteristics: Using AP, STA and AP and STA LUA program support
  • Strong points: A wide range of safe, reliable and scalable applications for the TSMC 40nm chips

Frequently bought together

HiLetgo 0.96" ESP32 OLED ESP-WROOM-32 ESP32 ESP-32 OLED WiFi Bluetooth Development OLED Display for Arduino AP STA
$13.49
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HiLetgo ESP-WROOM-32 ESP32 ESP-32D Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor I
$9.99
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 4.41 x 2.28 x 0.31 inches; 0.35 ounces
  • Item model number ‏ : ‎ 8541582783
  • Date First Available ‏ : ‎ July 14, 2017
  • Manufacturer ‏ : ‎ HiLetgo
  • ASIN ‏ : ‎ B072HBW53G
  • Customer Reviews:
    4.1 4.1 out of 5 stars 47 ratings

Product Description

ESP-WROOM-32 ESP32 ESP-32 0.96" OLED Display WIFI-BT for Arduino AP STA
Description:
ESP32 has integrated antenna and RF Barron, power amplifier, low noise amplifier, filter and supply Management module.
The entire solution is the smallest PCB area. The board is 2.4 GHz dual-mode Wi-Fi and Bluetooth low power technology,
with a wide range of safe, reliable and scalable applications for the TSMC 40nm chips, power and best RF features.
Features:
high-performance price ratio, small size, easy embedding to other products powerful, with the support of the LwIP protocol,
support three modes: using AP, STA and AP and STA LUA program support, easy to develop
Package included:
1* ESP-WROOM-32 ESP32 ESP-32 0.96" OLED Display WIFI-BT for Arduino AP STA

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Customer reviews

4.1 out of 5 stars
4.1 out of 5
47 global ratings

Customers say

Customers like the quality, ease of use, graphics, connectivity, and features of the single board computer. For example, they mention it's a great board, has a built-in display, and is perfect for connecting to a server over WiFi to beam over sensor data. They appreciate the many cool features and the example code it comes with.

AI-generated from the text of customer reviews

9 customers mention9 positive0 negative

Customers are satisfied with the quality of the single board computer. They mention that it is a great board, with good quality. They also say that it's a good development board for any project that needs a display. They find the GPIO operation generally solid, and that the PWM output has some issues.

"This board is very easy to use with the Arduino IDE.Great little board for all your internet-enabled projects, the built in display is just awesome..." Read more

"...works as expected when coding via MicroPython, and GPIO operation is generally solid, but PWM output has some issues at lower frequencies (<5 kHz)..." Read more

"I used this board on a previous project and liked the build quality." Read more

"This board is great... unless you want to actually connect the pins to anything...." Read more

7 customers mention5 positive2 negative

Customers find the single board computer easy to use. They mention that it's very easy to program with the Arduino IDE and that it has an integrated OLED display.

"Five minutes to IoT!This board is very easy to use with the Arduino IDE...." Read more

"This board is very easy to use with the Arduino IDE.Great little board for all your internet-enabled projects, the built in display is just awesome..." Read more

"...As far as i can tell there is no schematic. I emailed the company (Hiletgo) and no response.Gotcha #1...." Read more

"I found it quick and easy to use, although I am having trouble connecting to it in AP mode, probably something I am doing though...." Read more

7 customers mention7 positive0 negative

Customers like the graphics of the single board computer. They mention that the built-in display is awesome for debugging and status, and that it makes life much easier for debuggers in the field. They say that the display really does strike a nice balance between having enough space to show several graphics, GPIO, SPI, I2C, serial, and USB. They also say that it's super-convenient for de bugging and IoT projects that can benefit from a display. They even say that displaying local weather, time for the nearest bus or train, or status on the board is great.

"...little board for all your internet-enabled projects, the built in display is just awesome for debugging and status." Read more

"...A complete development system- text, graphics, GPIO, SPI, I2C, serial, USB, dual core processor, Bluetooth, wifi, programmable with Arduino tools,..." Read more

"This is a very nice ESP32 board. The integrated OLED display is super-convenient for debugging and IoT projects that can benefit from a display...." Read more

"...I think the display really does strike a nice balance between having enough space to show several lines of text legible, but not draining your..." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the connectivity of the single board computer. They mention that it connects right to WiFi and Bluetooth worked great from about 12 feet through a USB cable. The device is programmable with Arduino and is perfect for connecting to a server over WiFi to beam over sensor data.

"...text, graphics, GPIO, SPI, I2C, serial, USB, dual core processor, Bluetooth, wifi, programmable with Arduino tools, Lua, c, micro - Python" Read more

"This little beauty is perfect for connecting to a server over wifi to beam over sensor data or to emulate a BT controller on something like a FireTV...." Read more

"...No issues connected right to WiFi and Bluetooth worked great from about 12 feet through a brick wall and mini fridge." Read more

3 customers mention3 positive0 negative

Customers like the features of the single board computer. They mention it has many cool features, including Bluetooth and temperature sensor. Customers also appreciate the example code that helps them get started.

"...It includes a few examples to get started (attached photos taken from this example code). I'm really excited to play with this board some more." Read more

"...Many cool features, not sure if it actually has a charging circuit yet...will be testing that this week." Read more

"What a cool device with most desired components like Bluetooth & temperature sensor all built in...." Read more

Five minutes to IoT!
5 Stars
Five minutes to IoT!
Five minutes to IoT!This board is very easy to use with the Arduino IDE.1) Add the additional board manager URL by going to File-&#62;Preferences2) Add the ESP32 boards by going to Tools-&#62;Board-&#62;Board Manager and typing &#34;ESP32&#34; in the search bar3) Select &#34;WEMOS LOLIN32&#34; from Tools-&#62;Board. Ensure you have the correct COM port.4) Pick a sketch from File-&#62;Examples and upload to the board. I used &#34;SimpleTime&#34; which connects to your wifi (enter SSID and password on lines 4 and 5 of the sketch) and gets the current time using NTP. It then echoes this time to the serial monitor. Bottom right shows the client list from my router showing the ESP32 has connected.Great little board for all your internet-enabled projects, the built in display is just awesome for debugging and status.
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Top reviews from the United States

e.p.
5.0 out of 5 stars Five minutes to IoT!
Reviewed in the United States on October 24, 2018
Verified Purchase
Five minutes to IoT!

This board is very easy to use with the Arduino IDE.
1) Add the additional board manager URL by going to File->Preferences
2) Add the ESP32 boards by going to Tools->Board->Board Manager and typing "ESP32" in the search bar
3) Select "WEMOS LOLIN32" from Tools->Board. Ensure you have the correct COM port.
4) Pick a sketch from File->Examples and upload to the board. I used "SimpleTime" which connects to your wifi (enter SSID and password on lines 4 and 5 of the sketch) and gets the current time using NTP. It then echoes this time to the serial monitor. Bottom right shows the client list from my router showing the ESP32 has connected.

Great little board for all your internet-enabled projects, the built in display is just awesome for debugging and status.
Customer image
e.p.
5.0 out of 5 stars Five minutes to IoT!
Reviewed in the United States on October 24, 2018
Five minutes to IoT!

This board is very easy to use with the Arduino IDE.
1) Add the additional board manager URL by going to File->Preferences
2) Add the ESP32 boards by going to Tools->Board->Board Manager and typing "ESP32" in the search bar
3) Select "WEMOS LOLIN32" from Tools->Board. Ensure you have the correct COM port.
4) Pick a sketch from File->Examples and upload to the board. I used "SimpleTime" which connects to your wifi (enter SSID and password on lines 4 and 5 of the sketch) and gets the current time using NTP. It then echoes this time to the serial monitor. Bottom right shows the client list from my router showing the ESP32 has connected.

Great little board for all your internet-enabled projects, the built in display is just awesome for debugging and status.
Images in this review
Customer image
15 people found this helpful
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Jo J
5.0 out of 5 stars Nice development board
Reviewed in the United States on April 22, 2019
Verified Purchase
This board is very easy to use with the Arduino IDE.Great little board for all your internet-enabled projects, the built in display is just awesome for debugging and status.
A complete development system- text, graphics, GPIO, SPI, I2C, serial, USB, dual core processor, Bluetooth, wifi, programmable with Arduino tools, Lua, c, micro - Python
One person found this helpful
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dx
4.0 out of 5 stars Nice ESP32 board, but has PWM issues at low frequencies
Reviewed in the United States on June 14, 2022
Verified Purchase
This is a very nice ESP32 board. The integrated OLED display is super-convenient for debugging and IoT projects that can benefit from a display. Everything works as expected when coding via MicroPython, and GPIO operation is generally solid, but PWM output has some issues at lower frequencies (<5 kHz). This isn't a big deal for most applications, but servo motors operating at 50 Hz can't be driven using PWM -- I tried this with 4 different kinds of servos with no luck, and finally had to write a custom loop to manage the timing "by hand".
One person found this helpful
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J. Shanahan
1.0 out of 5 stars No instructions or schematic.
Reviewed in the United States on October 31, 2022
Verified Purchase
There are definitely some gotchas with this board. As far as i can tell there is no schematic. I emailed the company (Hiletgo) and no response.

Gotcha #1. You must press and hold the BOOT button for a few seconds when Arduino or Pio starts to program. Workaround: solder 1.0uF cap from pin 3 (EN) on the module to pin 1 (GND).

Gotcha #2. OLED uses gpio 4 and 5 for I2C. Do not use these for other purposes else your display will not work.

Gotcha #3. GPIO12 (Pin MTDI) must be logic low on power up or else micro won't boot up.

Gotcha #4. GPIO0 must be logic HIGH on power up or else micro won't boot up.
2 people found this helpful
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Mike Chibnik
5.0 out of 5 stars Good quality board
Reviewed in the United States on December 4, 2023
Verified Purchase
I used this board on a previous project and liked the build quality.
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Andrew Thompson
5.0 out of 5 stars Bluetooth + WiFi + Display
Reviewed in the United States on January 31, 2019
Verified Purchase
This little beauty is perfect for connecting to a server over wifi to beam over sensor data or to emulate a BT controller on something like a FireTV. I think the display really does strike a nice balance between having enough space to show several lines of text legible, but not draining your batteries in the first 30 minutes you use it. I'm still amazed that at this price point you can get a microcomputer that you can target with the espressif toolchain to put decent sized binaries on such a small package. No joke you have enough horsepower to emulate a CP/2 OS while bit-banging a NTSC video connection as a second display above the beyond the OLED! If you are looking for a small board to prototype your next project you could do worse than this baby.
One person found this helpful
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Zane
2.0 out of 5 stars Extremely confusing pinouts
Reviewed in the United States on April 5, 2020
Verified Purchase
This board is great... unless you want to actually connect the pins to anything. I thought the build-in display would be a nice convenience, and instead ended up with hours and hours of pain.

It comes with zero instructions. The HiLetgo website is currently not really even loading (I get some HTML that partially loads without CSS). Fine, I'm comfortable with a simple pinout diagram. I first tried to attach a sensor to a GPIO pin, and all of a sudden started received errors when trying to flash the device. Tried pins 5 and 4, and it flashed fine — except those are required for the SSD1306. Ooookay... try a different pin? nope, another flash error:

——
Configuring flash size...
Warning: Could not auto-detect Flash size (FlashID=0xffffff, SizeID=0xff), defaulting to 4MB
Compressed 8192 bytes to 47...
A fatal error occurred: Timed out waiting for packet content
——

This happens every time I have anything at all connected to (most) pins. I bought two of these boards, so it's not a problem with the device itself.

Want to use I2C? Good luck. It's used by the display, and I've yet to figure out how to use something like the SHT31 for a temperature/humidity reading. One reviewer seemed to indicate that he got it working with What are the alternate (0x45) I2C pins? I still have no idea.
One person found this helpful
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Mike
5.0 out of 5 stars Very easy to use!
Reviewed in the United States on November 17, 2019
Verified Purchase
This is my ~10th esp32 and my 6th one with an OLED integrated. All previous Ones with integrated OLED had some difficulty getting the OLED to work. They’ve made some major improvements to the libraries for esp32 and esp32 with OLEDs in the Arduino IDE. My first one took several hours of drivers and everything. This one I set up in 10min on a brand new computer that never even had an arduino IDE installed. If you needs help there’s a website that starts with ‘nerd’ that is quite useful. I’ve had complete success with the OLED and BT on this.
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