- Home Page /
- Industrial Supplies /
- Industrial Electrical /
- Controls & Indicators /
- Relays /
- Electromechanical Relays /
- 8AI-8DI-8DO DC 12V 24V ESP-WROOM-32 ESP32 Exp...
0 ratings
Item #:
198115406
8AI-8DI-8DO DC 12V 24V ESP-WROOM-32 ESP32 Expansion Board RS485 4-20MA 0-5V 0-10V Analog Collection WiFi Relay Switch DIY (12V Relay Only Board)
Item #:
198115406
WST 121
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Saturday, August 29
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Achieve versatile automation and control with ESP32 expansion boards for home and industrial applications.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Versatile Power Options
Supports both 12V and 24V power supply, allowing flexibility for different applications while ensuring optimal performance and compatibility with various devices.
Advanced Analog Inputs
Equipped with 4-20mA, 0-5V, and 0-10V analog collection capabilities, enabling precise monitoring and control of sensors for diverse industrial applications.
WiFi Connectivity
Incorporates ESP-WROOM-32 for seamless WiFi connectivity, facilitating remote control and automation capabilities, which enhances usability for DIY projects and smart home systems.
Product Details
| Item Weight | 1.5 lbs (680 grams) |
Who Should Buy?
-
IoT Developers
Perfect for Internet of Things projects needing Wi-Fi control and sensor data collection for various applications.
-
Home Automation Enthusiasts
Ideal for users looking to create custom home automation systems with wireless relay switches and sensors.
-
Technical Educators
Useful for teaching electronics and programming concepts related to analog and digital control systems.
-
Beginners
Not suitable for those without prior knowledge of electronics, programming, or circuit assembly.
Product Description
8AI-8DI-8DO DC 12V 24V ESP-WROOM-32 ESP32 Expansion Board RS485 4-20MA 0-5V 0-10V Analog Collection WiFi Relay Switch DIY (12V Relay Only Board)
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the 8AI-8DI-8DO Expansion Board used for?
Answer: The 8AI-8DI-8DO Expansion Board is designed for various applications in DIY projects and automation systems. It enhances your ESP32 capabilities by providing multiple analog and digital input/output options, allowing you to collect and process data from sensors or control devices like relays. This board is especially useful for monitoring environmental conditions and controlling smart devices in a home automation setup. -
Question:
How does the RS485 feature work on this expansion board?
Answer: The RS485 feature provides a robust communication interface capable of long-distance data transmission. It allows multiple devices to be connected over a single pair of wires, enhancing stability in noisy environments. This is particularly beneficial in industrial settings where data needs to be reliably transferred across significant distances, such as remote sensor monitoring or automation controls. -
Question:
What types of input signals can the 4-20mA and 0-5V/0-10V options handle?
Answer: The board can accept both 4-20mA and voltage signals (0-5V and 0-10V) for analog data collection, making it versatile for various sensor types. This capability enables you to interface with standard industrial sensors that often use these signal types for communication with controllers, making it ideal for applications in process control and environmental monitoring. -
Question:
Can I use this board with a 24V power supply?
Answer: Yes, the 8AI-8DI-8DO Expansion Board can operate with both DC 12V and 24V power supplies. This flexibility allows you to choose the voltage that best fits your project's requirements, ensuring compatibility with a wide range of setups. It's suited for various applications, whether in home automation or industrial control systems where different voltage levels may be used. -
Question:
What programming skills are required to utilize this expansion board?
Answer: Basic programming knowledge in coding with the Arduino IDE or PlatformIO is beneficial for using the 8AI-8DI-8DO Expansion Board. Familiarity with ESP32 libraries and communication protocols is essential to leverage the board's features effectively. This makes it an ideal platform for hobbyists, engineers, and students looking to develop IoT projects and learn about smart automation techniques. -
Question:
Is there a specific application for the WiFi relay switch?
Answer: The WiFi relay switch on the expansion board allows you to control devices remotely via your local network. This feature is perfect for automating home appliances, lighting systems, or industrial equipment. By integrating it with your ESP32 project, you can create custom smart home applications and enjoy enhanced control over your environment directly from your smartphone or computer. -
Question:
What is the data collection capacity of this board?
Answer: The board supports up to eight analog inputs, eight digital inputs, and eight digital outputs, making it capable of handling a considerable amount of data simultaneously. This makes it particularly useful for complex projects that require real-time data monitoring and control, such as agritech systems that track soil moisture levels or climate-controlled indoor gardens. -
Question:
Can this board be integrated with existing home automation systems?
Answer: Yes, the 8AI-8DI-8DO Expansion Board can easily integrate with various home automation platforms. Using the ESP32 WiFi capability, it allows for seamless communication with other devices and systems, enabling interoperability with popular protocols. This makes it ideal for building customized automation solutions where you can monitor and control devices from a single interface. -
Question:
What materials or components are required to get started?
Answer: To get started with the 8AI-8DI-8DO Expansion Board, you'll need an ESP32 board, suitable power supply (12V or 24V), sensors or devices to connect, and jumper wires for connections. Optionally, having a breadboard can aid in prototyping. This simple setup enables a wide range of projects, from basic monitoring systems to complex automation tasks. -
Question:
Where can I buy the 8AI-8DI-8DO Expansion Board?
Answer: You can purchase the 8AI-8DI-8DO DC 12V 24V ESP-WROOM-32 ESP32 Expansion Board from Ubuy in Samoa. Ubuy offers a wide range of electronic components and provides options for quick and secure transactions, making it a reliable platform for sourcing this expansion board for your projects.
eletechsup Electromechanical Relays Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
WST 121
Order now and get it around Saturday, August 29
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Working voltage: DC 12V-24V for versatile compatibility.
- Includes 8 relay outputs and multiple input options for extensive control.
- Ideal for home automation, WiFi remote control, and monitoring.
- Requires 38PIN ESP32 board for operation; customize functionality with your own code.
- Leverage RS485 communication for robust connectivity with other devices.
- Compact design and optimized current consumption for efficiency.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.