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ESP32-S3 Industrial-Grade WiFi Relay IOT RS485 Communicator Bluetooth
$16.9
ESP32-S3 Industrial Control Board, Industrial-Grade Single-Channel Wi-Fi Network Relay, Supports Wi-Fi, Bluetooth, RS485, and Other Peripheral Interfaces, Comes with Multiple Isolation Protection Circuits, and Comes in an Industrial-Grade DIN-Rail Housing
ESP32-S3 Industrial Control Board
Industrial-grade single-channel Wi-Fi network relay
Based on ESP32-S3 master control, supports Wi-Fi, Bluetooth, RS485 and other peripheral interfaces
Built-in power isolation, optocoupler isolation and other protection circuits, safer, more stable and more reliable
Product Features
- Based on the ESP32-S3 microcontroller, it is equipped with an Xtensa 32-bit LX7 dual-core processor with a main frequency of up to 240MHz.
- Integrated 2.4GHz Wi-Fi and Bluetooth 5 (LE) dual-mode wireless communication for excellent RF performance
- Use high-quality relays, allowing access to loads: ≤10A 250V AC or ≤10A 30V DC
- Onboard isolated RS485 interface, convenient for external access to various RS485 Modbus industrial expansion modules or sensors
- Onboard RTC clock chip, supports scheduled tasks
- Onboard USB Type-C interface, which can be used for power supply and download debugging, making it convenient for development and use
- Onboard terminal block power supply interface, only supports 5V power supply
- Onboard optocoupler isolation to prevent external high-voltage circuits from interfering with the control chip
- Onboard digital isolation to prevent external signals from interfering with the control chip
- Onboard integrated power isolation can provide stable isolation voltage, and no additional power supply is required for the isolation end
- Onboard RS485 transceiver indicator light for easy perception of device operating status
- Guide rail type protective shell, easy to install and use, safer with shell
Product Parameters
| microcontroller | ESP32-S3 (ESP32-S3R8 chip by default, customizable) | |
|---|---|---|
| Wireless Communications | 2.4GHz Wi-Fi (802.11 b/g/n)、Bluetooth 5 (LE) | |
| USB port | Interface form | USB Type-C |
| Supply voltage | 5V | |
| Function | Device power supply, USB communication, firmware download, etc. | |
| Isolated RS485 | Interface form | Terminal Blocks |
| Direction control | Automatic control via master hardware flow settings | |
| Interface protection | Provides TVS tube protection, surge and electrostatic protection | |
| Matching resistor | Default is NC, 120R matching resistor is reserved, jumper cap can be used to enable | |
| relay | Allow access to load | ≤10A 250V AC or ≤10A 30V DC |
| Relay circuits | 1 road | |
| Contact type | Normally open | |
| Isolation Type | Optocoupler Isolation | |
| pilot lamp | PWR | Power indicator light, when connected to USB, it will light up red when voltage is detected |
| Relay | Relay indicator light, lights up when the normally open terminal is closed | |
| RS485 | RS485 indicator light： The green light turns on when data is sent from the RS485 interface. The blue light turns on when data is sent back from the RS485 interface | |
| Terminal power supply | Power supply range | 5V |
| Product Appearance | shell | Rail-type protective housing |
| size | 91.6 × 23.3 × 58.7 (mm) | |
Based on ESP32-S3
Designed specifically for the AIoT market
Equipped with an Xtensa 32-bit LX7 dual-core processor with a clock speed of up to 240MHz, it offers powerful AI computing capabilities and secure encryption mechanisms. It also integrates 2.4GHz Wi-Fi and Bluetooth 5 (LE) dual-mode wireless communication.
Onboard multiple isolation protection circuits
Multiple protections, safer and more reliable to use
One onboard relay, supporting RS485, Bluetooth, or Wi-Fi remote control
The device has a relay with a contact capacity of 10A at 250V AC or 10A at 30V DC.
It can directly control household 220V AC appliances, as well as DC appliances below 30V.
Support Arduino, convenient for secondary development
Complete SDK and open source tutorials are provided to make it easy to get started and can be quickly embedded into applications.
Example Demo
The sample code provides various combinations, including the Waveshare.cloud IoT connection demonstration, and uses the lightweight MQTT protocol to implement data visualization services.
Interface Description
| Upper terminal description | Lower terminal description | |||
|---|---|---|---|---|
| Power supply terminal | Power supply positive: DC 5V | RS485 terminal | A+ signal pin | |
| Negative pole of power supply | ||||
| Type-C | Can be used for device power supply, firmware download, and USB communication | B- Signal pin | ||
| SH1.0 | GND | Ground wire | Relay terminals | Relay common terminal |
| 3V3 | 3.3V power output | |||
| GPIO2 | Expanded IO | Relay normally open | ||
| GPIO1 | Expanded IO | |||
Resource Introduction
- ESP32-S3
Clocked at up to 240MHz, it features 2.4GHz Wi-Fi and Bluetooth Low Energy.
- DC-DC power modules
Power module, supports up to 3.3V 2A output
- Pin header
Other functional modules can be connected via pin headers
- Power terminal blocks
Support DC 5V power supply
- USB Type-C port
Can be used for device power supply, firmware download and USB communication
- RTC battery connector
Connect to rechargeable RTC battery (SH1.0)
- Chip ceramic antenna
- IPEX 1st generation transposer
Can be switched to use an external antenna by unsoldering a resistor
- Working indicator light
PWR: Power indicator
RELAY: Relay indicator, lights up when the normally open terminal is closed
RS485: Lights up green when data is sent from the RS485 interface and lights up blue when data is returned from the RS485 interface
- Optocoupler Isolation
- Power isolation
Provides stable isolation voltage, no additional power supply required for the isolation end
- Device BOOT button
- Device reset button
- Onboard TVS (Transient Voltage Suppressor)
Can effectively suppress surge voltage and transient spike voltage in the circuit
- High-quality relays
The load allowed for a single relay is: ≤10A 250V AC or ≤10A 30V DC
- RS485 matching resistor
Reserve 120R matching resistor, which can be enabled by jumper cap
- RS485 and relay terminals
- RTC clock chip
PCF85063 RTC clock
- 16MB Flash
- Digital Isolation
Prevent external signals from interfering with the control chip
- RS485 conversion chip
- ME6217C33M5G
Low dropout LDO, current (Max) 800mA
- Open window and add tin
Shell design
Guide rail type protective shell, easy to install and use, safer with shell
Product size
