Description

The ESP32R4 controller features the ESP32 microcontroller, 2.4 GHz Wi-Fi, and Bluetooth LE 4.2 (BR/EDR + LE). Two CPU cores with adjustable clock speeds up to 240 MHz are used to control four relays, four buttons, the buzzer, and additional embedded modules for additional interfaces and a color TFT touchscreen.

The ESP32R4, equipped with the ESP32 microcontroller, can be deployed as a complete standalone system or as a slave device for the cloud or server, reducing the communication stack overhead for the main application. The ESP32R4 can be connected to other systems via its UART, I2C, SPI, and SDIO interfaces to provide Wi-Fi and Bluetooth functionality.

• ESP32-DOWD-V3 microcontroller module with 4MB or 16 MB FLASH and 8 MB PSRAM
• Embedded or External WiFi/Bluetooth antenna
• 4 active relays for commutate load 10A, 240AVC/30VDC with LED indicate
• 4 functional buttons
• AC 90~240V or DC 7~36V power IN
• Programming buttons: PROG and RESET and UART programming header
• Sound Buzzer
• Status LED
• Socket for RF433/315 receiver modules
• Pin headers and RJ-12 sockets for connecting additional equipment with I2C, SPI, Serial UART, RS232 or RS485 interface.
• Enclosure or board variation.

MCU ESP32 – 32-bit 2.4GHz Wi-Fi & Bluetooth/BLE

• Two CPU core(s) with adjustable clock frequencies, ranging from up to 240 MHz
• +19.5 dBm output power ensures a good physical range
• Classic Bluetooth for legacy connections, also supporting L2CAP, SDP, GAP, SMP, AVDTP, AVCTP, A2DP (SNK) and AVRCP (CT)
• Support for Bluetooth Low Energy (Bluetooth LE) profiles including L2CAP, GAP, GATT, SMP, and GATT-based profiles like BluFi, SPP-like, etc
• Bluetooth Low Energy (Bluetooth LE) connects to smart devices, broadcasting low-energy beacons for easy detection
• Peripherals include capacitive touch sensors, high-speed SPI, UART, I2S and I2C

Firmware:

Esphome Home Assistant

TASMOTA

Scope of delivery:

• 1 x ESP32R4 Board 4M
• 1 x Din Rail housing with instructions and support service

Specifications

• Weight: 50 g
• Use: indoors
• outdoors: outdoors

Pros and cons

• Sustainably produced
• ideal for everyday use