ESP32-C3 WiFi bluetooth-compatible Development Board With 0.42 Inch OLED White Light Module Ceramic Antenna Type-C ESP32
Guaranteed Safe Checkout

Free Gift
Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.Shipping Policy
We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.1. Return & Exchange Policy
We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side. Final sales items or free gifts are not acceptable for a return. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier.We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +8619359849471
2.Refund Policy
You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment. Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +8619359849471Specification:
Voltage: 3.3~6V
WiFi: 802.11b/g/n protocol, 2.4GHz
bluetooth: BT 5.0
SPI Flash: Built in 4M
Pin interfaces: 1xI2C, 1xSPI, 2xUART, 11xGPIO (PWM), 4xADC
Onboard LED blue light: GPO8 pin
BO0: Download button, long press BO0 button and plug in the USB cable, then release your hand to enter "download mode"
RST: Reset button, program running restarts or resets.
USB interface: can be used as a power supply for circuit boards or as a communication interface for connecting PCs and ESP32C3.
Size: 24.8mm x 20.45mm
Features:
1. This development board is equipped with a 0.42-inch OLED display screen, ceramic antenna, Type-C USB interface, reset button, and start button, making it easy and fast to operate.
2. Rich peripheral interfaces with abundant peripherals and functions, suitable for small projects and scenarios such as IoT, wearable devices, and smart homes.
3. Low power design, optimized power management system supports multiple low-power modes, suitable for battery powered devices, and extends battery life.
4. Supports 2.4GHz Wi Fi and bluetooth low-power 5.0, suitable for wireless connection needs of various IoT devices.
5. High cost-effectiveness, compared to the performance and functionality it provides, ESP32-C3 has significant cost-effectiveness and is suitable for large-scale deployment of IoT projects.
Package include:
1X development board
2X needle arrangement
Note:
1. This document only represents the product knowledge and parameters at the time of editing, and any changes in the future will not be notified separately.
2. If external power supply is required, simply connect the external power supply+stage to the 5V position and GND to the negative terminal. (Supports 3.3-6V power supply).
3. Remember that when connecting to an external power source, USB cannot be connected, and only one of USB and external power can be selected.
4. Please be careful not to short-circuit the positive and negative electrodes during welding, which may burn out the battery and equipment.