Industrial ESP32-S3 controller RS485 CAN Wi-Fi Bluetooth 7-36V DIN rail
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Industrial ESP32-S3 board with RS485 and CAN - Wi-Fi, Bluetooth, DIN Rail
Industrial controller based on the ESP32-S3 chip, offering isolated RS485 and CAN interfaces as well as Wi-Fi and Bluetooth 5 (LE) connectivity. Equipped with a wide power supply range of 7-36V, a built-in RTC, and a complete set of protections, it is ideal for harsh industrial automation and IoT environments.
Key features:
- ESP32-S3 Xtensa 32-bit LX7 dual-core processor clocked at up to 240 MHz.
- Wireless connectivity 2.4GHz Wi-Fi and Bluetooth 5 (LE).
- Isolated RS485 interface with automatic data flow direction control.
- Isolated CAN interface with TVS and ESD protection.
- Wide power supply voltage range from 7V to 36V DC via screw terminal.
- Built-in PCF85063 RTC for tasks requiring time scheduling.
- Full digital and power isolation for stable operation without interference.
- Industrial protections: TVS diodes, surge protection, and ESD protection.
- Protective enclosure with the ability to mount on a standard DIN rail.
- LED status indicators for power and RS485 and CAN transmission.
Multi-level isolation and circuit protection
The controller is designed to operate in harsh environmental conditions. Integrated galvanic isolation separates control signals from external interference, and TVS diodes protect the system against sudden voltage spikes and electrostatic discharges, ensuring the longevity of the device.
Description of interfaces and terminals
The device offers convenient screw terminals for RS485 and CAN communication and power supply. Additionally, a USB Type-C port enables fast programming and system diagnostics.
Board construction and components
- ESP32-S3: 240MHz processor, Wi-Fi/BLE
- DC-DC module: Stable power supply 3.3V 2A
- Pinheader connector: Extensions 2.0mm
- Power terminal: Input 7–36V DC
- USB Type-C port: Programming and power supply
- RTC connector: For backup battery
- Ceramic antenna: Wi-Fi/BT
- IPEX connector: For external antenna
- Flash memory: 16MB
- Digital isolation: Signal protection
- CAN transceiver
- LED indicators: PWR, RS485, CAN
- BOOT button
- RESET button
- Power isolation: Unibody isolation
- RS485 resistor: Configuration 120R
- CAN resistor: Configuration 120R
- RS485 and CAN connectors
- PCF85063 RTC chip
- DC-DC power supply circuit
- ME6217C33M5G LDO regulator
- RS485 transceiver
- TVS diodes: Surge protection
Technical specification
- Microcontroller: ESP32-S3R8 Dual-Core
- Clock speed: 240 MHz
- Connectivity: Wi-Fi 2.4GHz + BT 5 (LE)
- Power supply: 7-36V DC (terminal) / 5V (USB-C)
- Interfaces: RS485, CAN (isolated)
- Protections: TVS, Surge, ESD
- RTC chip: PCF85063
- Enclosure: DIN rail mounting
- Connectors: Screw (terminal block)
- Dimensions: 91.6 × 23.3 × 58.7 mm
External dimensions
Kit contents
- ESP32-S3-RS485-CAN controller x1
- SH1.0 4PIN cable (~150mm) x1
- Mounting screwdriver x1
Safety
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