WAVESHARE ESP32-S3 Control Board With RS485 And CAN Communication Interfaces, Supports Wi-Fi / Bluetooth, Built-In Multiple Protection Circuits, External Antenna, Onboard Antenna

1. Antenna Interface: On-board surface-mount ceramic antenna / external antenna
2. Microcontroller: ESP32-S3R8 chip
3. Wireless Communication: 2.4GHz Wi-Fi (802.11 b/g/n), Bluetooth 5 (LE)
4. Interface: Type-C
5. Supply Voltage: 5V
6. Interface Functions: Device power supply, USB communication, firmware download, etc.
7. Isolated RS485 Communication Interface:
- Interface Type: Terminal blocks
- Direction Control: Automatically controlled via master hardware flow settings
- Interface Protection: TVS diode protection, surge protection, and ESD protection
- Matching Resistor: Default NC; 120R matching resistor reserved; can be enabled via jumper cap
8. Isolated CAN Communication Interface:
- Interface Type: Terminal Blocks
- Direction Control: Hardware automatically detects and controls data transmission direction
- Interface Protection: Provides TVS diode protection, surge protection, and ESD protection
- Matching Resistor: Default NC, 120R matching resistor reserved, can be enabled via jumper cap
9. Indicator Lights:
- PWR: Power indicator; lights up red when connected to USB and voltage is detected
- RS485 Indicator: Lights up green when data is transmitted from the RS485 interface; lights up blue when data is received from the RS485 interface
- CAN Indicator: Flashes when data is being transmitted via the CAN interface
10. Supply Voltage Range: 7V – 36V
11. Enclosure: DIN-rail mounting enclosure
12. Dimensions: Approx. 9.16 x 2.33 x 5.87 cm

Features:
1. Based on the ESP32-S3 microcontroller, with a built-in Xtensa 32-bit LX7 dual-core processor operating at up to 240 MHz
2. Integrates dual-mode 2.4 GHz Wi-Fi and Bluetooth 5 (LE) wireless communication with excellent RF performance
3. On-board isolated RS485 interface, facilitating the connection of various RS485 Modbus industrial expansion modules or sensors
4. On-board isolated CAN interface, facilitating the connection of various CAN devices
5. On-board pin header interface, allowing connection to other devices
6. On-board USB Type-C interface, usable for power supply and download/debugging, facilitating development
7. On-board terminal block power supply interface, supporting a wide voltage range of 7V to 36V, suitable for industrial power supply applications
8. On-board RTC clock chip, supporting scheduled tasks
9. On-board digital isolation prevents external signals from interfering with the control chip
10. On-board integrated power isolation provides a stable isolated voltage; the isolated side requires no additional power supply
11. On-board RS485 transmit/receive indicator lights and CAN activity indicator lights make it easy to monitor the device’s operating status
12. DIN-rail mounting enclosure facilitates installation and use; the enclosure provides added safety