T-Relay Style:T-Relay Set[H516+Q320] Low Power LoRa Transceiver Low

Low Power LoRa Transceiver Low RX current of 4

MCU ESP32-Wrover-E FLASH 4MB PS RAM 8MB Bus Interfaces UART

which separates the keyboard from the T-Watch

MCU ESP32-S3R8 Dual-core Xtensa LX7 CPU Wireless Connectivity Wi-Fi 802

MCU ESP32-S3 Dual-core LX7 microprocessor Flash 16MB Programming Platform Arduino-ide、 ESP-IDF RSRAM 8MB Si4732-A10 CMOS AM/FM/SW/LW/RDS radio receiverIC Bat voltage detection IO04 Wireless 2

T-Relay Style:T-Relay Set[H516+Q320] Low Power LoRa Transceiver LowLILYGO TTGO T Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi Bluetooth Remote Switch Control Specifications MCU ESP32 FLASH 4MB PS RAM 8MB Bus Interfaces UART, SPI, I2C, CAN, 12S, SDIO Wireless Wi Fi 802. 11 b g n Bluetooth BLE V4. 2 Onboard Functions 4 Groups of relays Optocoupler Isolation 16 Expansion GPIO HRS4H S DC5V Relay: 4 Blue LEDs Relay Work Indicator K1 Relay: GPIO21 K2 Relay: GPIO19 K3 Relay: GPIO18 K4