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ESP32-C3 Supermini Board with 0.42 in OLED
$4.39$6.86Save 36%
In stock at aliexpress.com
An ESP32-C3 supermini development board with a built-in 0.42 inch OLED display, ceramic antenna, WiFi and Bluetooth, for small wireless projects. It costs $4.39, with over 1,600 orders and 97.5% positive feedback on AliExpress.
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Price from AliExpress at our last check (refreshed weekly). The final price, shipping and any import charges show at AliExpress checkout. We may earn a commission if you buy.
Highlights
- ESP32-C3 chip with WiFi and Bluetooth
- Built-in 0.42 inch OLED
- Ceramic antenna
- Supermini compact form factor
Best for
Makers who want a tiny wireless board with a built-in display for status text.
Things to consider
- The OLED is very small and low-resolution, so it suits short readouts rather than graphics
- Pin labels and the display driver library differ from generic ESP32 boards, so find a matching example before you start
- Dev boards ship in an anti-static bag in the standard window; flash it early and dispute a dead board through AliExpress
Key specs
| Price | $4.39 |
|---|---|
| Chip | ESP32-C3 |
| Display | 0.42 inch OLED |
| Wireless | WiFi, Bluetooth |
Our take
A neat tiny board for maker projects. Check the OLED example code first.
ESP32-C3 Supermini Board with 0.42 in OLED at a glance
| Brand | AliExpress |
|---|---|
| Price | $4.39 (was $6.86) |
| Type | Optoelectronic Displays |
| Availability | In stock at aliexpress.com |
| Returns | Eligible items can be returned within 90 days of payment, with the first return on each… |
Price check
At $4.39, the ESP32-C3 Supermini Board is mid-range for AliExpress, whose 51,717 listed products run $1 to $1,229.
It's currently 36% below its listed price of $6.86. Sale prices can end without notice, so check the live price before you order.
Similar items from other brands we track run $6.99 to $40.
Frequently asked questions
Can I program it with Arduino?
ESP32-C3 boards work with the Arduino IDE through the ESP32 board package. The listing doesn't mention a programming guide, so look for the board's pinout and OLED example before you start.
Does it have a USB port?
The title doesn't say. Most supermini ESP32-C3 boards include a USB-C connector for power and flashing, but check the product images to confirm.
Is the OLED easy to use?
It needs a small I2C library and a correct offset for the 0.42 inch panel. Buyers sometimes struggle with screen alignment, so expect a little trial and error.
How long will delivery take?
A supermini board is a tiny parcel, so delivery usually takes one to three weeks, quicker with Choice or Ship from United States. Plug it in and flash a test sketch on arrival. A dead board is a Buyer Protection claim, and import fees may appear at checkout.
Is the ESP32-C3 Supermini Board on sale?
Yes. AliExpress lists it at $4.39, down from $6.86 (36% off). Sale prices change, so confirm the live price on aliexpress.com.
Is there a discount on the ESP32-C3 Supermini Board?
AliExpress publishes these ways to save: Coins in the app. AliExpress sets the terms, which can change; our AliExpress coupons page has the details.
What is AliExpress's return policy?
Eligible items can be returned within 90 days of payment, with the first return on each order free, according to AliExpress's 2024 US announcement. Return terms vary by seller and item, so check the product page. Custom, perishable and hygiene items are generally excluded.
How long does AliExpress take to ship?
AliExpress's 2024 US guarantee listed Choice orders at 5 to 12 days and standard orders at 8 to 14 days, but real-world standard shipping from China often runs longer. Items marked Ship from United States come from local stock. Free shipping on Choice orders depends on a minimum order shown at checkout.
Does the ESP32-C3 Supermini Board come with a warranty?
AliExpress's published warranty terms: AliExpress does not publish a marketplace-wide product warranty. Coverage depends on the individual seller, and Buyer Protection covers non-delivery, damage and not-as-described claims instead.
Where can I buy the ESP32-C3 Supermini Board?
The ESP32-C3 Supermini Board is sold directly by AliExpress on aliexpress.com. The Shop now button on this page goes straight to the product there.
Is the ESP32-C3 Supermini Board in stock?
Yes. AliExpress lists it as in stock on aliexpress.com as of our latest check. Stock and prices refresh throughout the day.
Is AliExpress a legit store?
AliExpress is a legitimate marketplace that is worth using for cheap, low-risk things like cables, tools, cleaning supplies and small home items, as long as you can wait and you buy from well-rated sellers. Skip it for anything safety-critical, brand-name or urgent. Check the seller's feedback score, the delivery estimate and the import-charge line at checkout before you pay. Our full AliExpress review covers shipping, returns and what to check before ordering.
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