The Waveshare Industrial ESP32-S3 6-Channel WiFi Relay Module w/ Bluetooth & RS485 is a robust and versatile control device designed for the AIoT market. It features an ESP32-S3 microcontroller with a dual-core processor that operates at a frequency of up to 240 MHz, providing powerful AI computing capabilities and a secure encryption mechanism. This module is equipped with integrated 2.4GHz Wi-Fi and Bluetooth LE for dual-mode wireless communication, ensuring superior RF performance.
The module boasts high-quality relays with a contact rating suitable for directly controlling 220VAC home appliances or devices operating below 30VDC. It includes an onboard isolated RS485 interface, which allows for connection to various RS485 Modbus industrial modules or sensors. Additionally, the 40PIN header is compatible with certain Raspberry Pi Pico HATs, enabling the expansion of additional functionalities such as RTC, CAN, RS232, LoRa, and sensors.
For ease of use and monitoring, the module features a built-in buzzer, an RGB colorful LED, and indicators for power supply and RS485 TX/RX signals. The rail-mounted ABS case ensures easy installation and safe operation. The module supports Arduino and Micropython development, accompanied by a comprehensive SDK, development resources, and tutorials to facilitate user engagement.
The ESP32-S3 6-Channel WiFi Relay Module w/ Bluetooth & RS485 is designed with multiple isolation protection circuits, including power isolation, optocoupler isolation, and digital isolation, to ensure safe, stable, and reliable operation. It is important to note that the module should be handled with care to avoid any potential hazards associated with high-voltage circuits.
Resistor: Onboard reserved 120R matching resistor, NC by default, enabled via jumper
Expanded Interface: Onboard 40PIN header compatible with some Raspberry Pi Pico HAT, easy to expand other functions such as RTC / CAN / RS232 / LoRa / sensor, etc
Relay: Contact rating ≤10A 250VAC/30VDC
Relay Channels: 6
Contact Form: 1NO 1NC
Isolation: Optocoupler isolation
LED Indicators: RGB colorful LED, supports programmable control for display color
PWR: Red power indicator, lights up when there is USB connection and voltage is detected
TXD: Green TX indicator, lights up when the RS485 port sends data
RXD: Blue RX indicator, lights up when the device port sends data back
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".
