Built-in protection circuits such as power isolation and optocoupler isolation, Safe & Stable & Reliable
Ā
| Based on ESP32-S3 microcontroller with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz |
| Integrated 2.4GHz Wi-Fi and Bluetooth 5 (LE) dual-mode wireless communication, with superior RF performance |
| High quality relay, contact rating: ā¤10A 250VAC / 30VDC |
| Onboard isolated RS485 interface, for connecting to various RS485 Modbus industrial modules or sensors |
| Onboard RTC chip, supports scheduled tasks |
| Onboard USB Type-C port for power supply, firmware downloading and debugging |
| Onboard power supply screw terminal, supports 5V power supply only |
| Onboard optocoupler isolation to prevent interference from external high-voltage circuits |
| Onboard digital isolation to prevent interference from external signals |
| Onboard unibody power supply isolation, providing stable isolated voltage; no extra power supply is required for the isolated terminal |
| Onboard RS485 TX/RX indicators for monitoring the operating status of the module |
| Rail-mounted protective case, easy to install and safe to use |
Ā
| Microcontroller | ESP32-S3 (Default module: ESP32-S3R8, customizable for other modules) | |
| Wireless communication | 2.4GHz WiFi (802.11 b/g/n), Bluetooth 5 (LE) | |
| USB | Connector | USB Type-C |
| Power supply | 5V | |
| Functions | Power supply, USB communication, firmware downloading, etc. | |
| Isolated RS485 | Connector | Screw terminal |
| Direction control | Automatically controlled via main controller hardware flow settings | |
| Protection | TVS diode, surge protection & ESD protection | |
| Resistor | Onboard reserved 120R matching resistor, NC by default, enabled via jumper | |
| Relay | Contact rating | ā¤10A 250VAC / 30VDC |
| Relay channel | 1 | |
| Contact form | 1 NO | |
| Isolation | Optocoupler isolation | |
| LED Indicators | PWR indicator | Red power indicator, lights up when there is USB connection and voltage is detected |
| Relay indicator | Lights up when the Normally Open (NO) is closed | |
| RS485 indicator | Lights up green when the RS485 port sends data Lights up blue when the RS485 port receives data |
|
| Power supply screw terminal | Voltage range | 5V |
| Appearance | Enclosure | Rail-mount protective case |
| Dimensions | 91.6 Ć 23.3 Ć 58.7 (mm) | |
Ā
Equipped with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz, with Powerful AI Computing Performance and Security Encryption Mechanism; Integrated 2.4GHz Wi-Fi and Bluetooth 5 (LE) dual-mode wireless communication
Ā
Multiple protections, more safe and reliable
Ā
Contact rating of the onboard relay up to 10A 250VAC/30VDC
Directly controlling 220VAC home appliances, or devices below 30VDC
Ā
Comprehensive SDK, Dev Resources, And Tutorials To Help You Easily Get Started
Ā
Provides Multiple Networking Demos With Waveshare.Cloud, Using The Lightweight MQTT Protocol To Achieve Data Visualization Service
Ā
| Top Terminal Block Description | Bottom Terminal Block Description | |||
|---|---|---|---|---|
| Power Supply Terminal | Power positive: DC 5V | RS485 Terminal | A+ signal pin | |
| Power negative | B- signal pin | |||
| Type-C | for power supply, firmware download, and USB communication | Relay Terminal | Relay COM | |
| SH1.0 | GND | Ground (GND) | Relay NO | |
| 3V3 | 3.3V power output | Ā | Ā | |
| GPIO2 | ESP32-S3 IO pin | Ā | Ā | |
| GPIO1 | ESP32-S3 IO pin | Ā | Ā | |
Ā
| 1. ESP32-S3 up to 240MHz operating frequency, with 2.4GHz WiFi and BLE |
12. ESP32 BOOT button |
| 2. DC-DC power module supports up to 3.3V 2A output |
13. ESP32 RESET button |
| 3. Pin header (2.0mm pitch) for connecting to other functional modules |
14. TVS diode Effectively suppresses surge voltage and transient spike voltage in the circuit |
| 4. Power supply screw terminal supports DC 5V voltage input |
15. Quality relay contact rating: ā¤10A 250V AC or ā¤10A 30V DC |
| 5. USB Type-C port for module power supply, firmware downloading and USB communication |
16. RS485 matching resistor Onboard reserved 120R matching resistor, enabled via jumper |
| 6. RTC battery header for connecting rechargeable RTC battery (SH1.0) |
17. RS485 and relay terminal |
| 7. Onboard ceramic antenna | 18. PCF85063 RTC chip |
| 8. IPEX 1 connector for connecting external antenna, enabled via resoldering an onboard resistor |
19. 16MB Flash |
| 9. LED indicators PWR: Power indicator RELAY: Relay indicator, lights up when the Normally Open (NO) is closed RS485: lights up green when the RS485 port sends data; lights up blue when the RS485 port receives data |
20. Digital isolation prevents interference from external signal |
| 10. Optocoupler isolation | 21. RS485 transceiver chip |
| 11. Power supply isolation Provides stable isolated voltage, no extra power supply is required for the isolated terminal |
22. ME6217C33M5G Low dropout regulator, 800mA output (Max.) |
| 23. Thicken track for large current |
Ā
Protection Enclosure With Rail-Mount Support, Easy To Install, Safe To Use
Ā
Ā
Support software and hardware customization
Including hardware interface, LOGO, label, case and web page, etc.
Ā
Wiki:Ā www.waveshare.com/wiki/ESP32-S3-Relay-1CH
Ā
Weight: 0.077 kg
ESP32-S3-Relay-1CH x1
SH1.0 4PIN cable ~150mm x1
Screwdriver x1
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Built-in protection circuits such as power isolation and optocoupler isolation, Safe & Stable & Reliable
Ā
| Based on ESP32-S3 microcontroller with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz |
| Integrated 2.4GHz Wi-Fi and Bluetooth 5 (LE) dual-mode wireless communication, with superior RF performance |
| High quality relay, contact rating: ā¤10A 250VAC / 30VDC |
| Onboard isolated RS485 interface, for connecting to various RS485 Modbus industrial modules or sensors |
| Onboard RTC chip, supports scheduled tasks |
| Onboard USB Type-C port for power supply, firmware downloading and debugging |
| Onboard power supply screw terminal, supports 5V power supply only |
| Onboard optocoupler isolation to prevent interference from external high-voltage circuits |
| Onboard digital isolation to prevent interference from external signals |
| Onboard unibody power supply isolation, providing stable isolated voltage; no extra power supply is required for the isolated terminal |
| Onboard RS485 TX/RX indicators for monitoring the operating status of the module |
| Rail-mounted protective case, easy to install and safe to use |
Ā
| Microcontroller | ESP32-S3 (Default module: ESP32-S3R8, customizable for other modules) | |
| Wireless communication | 2.4GHz WiFi (802.11 b/g/n), Bluetooth 5 (LE) | |
| USB | Connector | USB Type-C |
| Power supply | 5V | |
| Functions | Power supply, USB communication, firmware downloading, etc. | |
| Isolated RS485 | Connector | Screw terminal |
| Direction control | Automatically controlled via main controller hardware flow settings | |
| Protection | TVS diode, surge protection & ESD protection | |
| Resistor | Onboard reserved 120R matching resistor, NC by default, enabled via jumper | |
| Relay | Contact rating | ā¤10A 250VAC / 30VDC |
| Relay channel | 1 | |
| Contact form | 1 NO | |
| Isolation | Optocoupler isolation | |
| LED Indicators | PWR indicator | Red power indicator, lights up when there is USB connection and voltage is detected |
| Relay indicator | Lights up when the Normally Open (NO) is closed | |
| RS485 indicator | Lights up green when the RS485 port sends data Lights up blue when the RS485 port receives data |
|
| Power supply screw terminal | Voltage range | 5V |
| Appearance | Enclosure | Rail-mount protective case |
| Dimensions | 91.6 Ć 23.3 Ć 58.7 (mm) | |
Ā
Equipped with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz, with Powerful AI Computing Performance and Security Encryption Mechanism; Integrated 2.4GHz Wi-Fi and Bluetooth 5 (LE) dual-mode wireless communication
Ā
Multiple protections, more safe and reliable
Ā
Contact rating of the onboard relay up to 10A 250VAC/30VDC
Directly controlling 220VAC home appliances, or devices below 30VDC
Ā
Comprehensive SDK, Dev Resources, And Tutorials To Help You Easily Get Started
Ā
Provides Multiple Networking Demos With Waveshare.Cloud, Using The Lightweight MQTT Protocol To Achieve Data Visualization Service
Ā
| Top Terminal Block Description | Bottom Terminal Block Description | |||
|---|---|---|---|---|
| Power Supply Terminal | Power positive: DC 5V | RS485 Terminal | A+ signal pin | |
| Power negative | B- signal pin | |||
| Type-C | for power supply, firmware download, and USB communication | Relay Terminal | Relay COM | |
| SH1.0 | GND | Ground (GND) | Relay NO | |
| 3V3 | 3.3V power output | Ā | Ā | |
| GPIO2 | ESP32-S3 IO pin | Ā | Ā | |
| GPIO1 | ESP32-S3 IO pin | Ā | Ā | |
Ā
| 1. ESP32-S3 up to 240MHz operating frequency, with 2.4GHz WiFi and BLE |
12. ESP32 BOOT button |
| 2. DC-DC power module supports up to 3.3V 2A output |
13. ESP32 RESET button |
| 3. Pin header (2.0mm pitch) for connecting to other functional modules |
14. TVS diode Effectively suppresses surge voltage and transient spike voltage in the circuit |
| 4. Power supply screw terminal supports DC 5V voltage input |
15. Quality relay contact rating: ā¤10A 250V AC or ā¤10A 30V DC |
| 5. USB Type-C port for module power supply, firmware downloading and USB communication |
16. RS485 matching resistor Onboard reserved 120R matching resistor, enabled via jumper |
| 6. RTC battery header for connecting rechargeable RTC battery (SH1.0) |
17. RS485 and relay terminal |
| 7. Onboard ceramic antenna | 18. PCF85063 RTC chip |
| 8. IPEX 1 connector for connecting external antenna, enabled via resoldering an onboard resistor |
19. 16MB Flash |
| 9. LED indicators PWR: Power indicator RELAY: Relay indicator, lights up when the Normally Open (NO) is closed RS485: lights up green when the RS485 port sends data; lights up blue when the RS485 port receives data |
20. Digital isolation prevents interference from external signal |
| 10. Optocoupler isolation | 21. RS485 transceiver chip |
| 11. Power supply isolation Provides stable isolated voltage, no extra power supply is required for the isolated terminal |
22. ME6217C33M5G Low dropout regulator, 800mA output (Max.) |
| 23. Thicken track for large current |
Ā
Protection Enclosure With Rail-Mount Support, Easy To Install, Safe To Use
Ā
Ā
Support software and hardware customization
Including hardware interface, LOGO, label, case and web page, etc.
Ā
Wiki:Ā www.waveshare.com/wiki/ESP32-S3-Relay-1CH
Ā
Weight: 0.077 kg
ESP32-S3-Relay-1CH x1
SH1.0 4PIN cable ~150mm x1
Screwdriver x1
No reviews yet. Be the first to share your experience!
Discover More In:
Fill out the form below and our team will get back to you with bulk pricing.
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