Taidacent 4-Way Bluetooth Wireless Remote Relay IoT Smart Home Android Mobile APP Remote Electrical Switch 4 Channel DC 5v Relay Module

The 5V4 way Bluetooth relay module consists of 4 5V / 10A relay modules and SPP-C Bluetooth serial port slave module, which can be used to control the relay switch by sending commands through the mobile phone APP. Note: Only suitable for Android Parameter 1, Onboard high performance MCU and SPP-C Bluetooth 2.1 slave module; 2, Provide Bluetooth relay control APP; 3, Control distance: 10M (empty environment); 4, On-board 4-way 5V, 10A / 250VAC 10A / 30V DC relay, which can continuously pick up 100,000 times, has diode effluent protection and short response time; 5, With 4 optocoupler isolation, strong anti-interference ability; 6, Onboard Bluetooth status indicator and relay indicator; 7, Reserve the UART debug interface and MCU program download. 8, Working voltage: DC5V 9, Board size: 62.7 * 63.2mm Function description 1, onboard resources introduction: IN +, IN-: 5V power input; TX, RX: UART serial port pin; 5V, GND, SWIM, NRST: MCU program download port. LED D2 / D3 / D4 / D5 (red light): relay work indicator, light LEDD1 (blue light) when turned on: Bluetooth status indicator, described as follows: (1) When the flash is slow, it means waiting to establish a connection with the mobile phone; (2) When it is always on, it means that the connection is established successfully with the mobile phone. 2 jumper caps reserved: Please insert them to the right end during normal use (ie RX connected to RX1, TX to TX1). If you want to use the USB to TTL serial module to debug the SPP-C module separately, please insert it to the left end (Otherwise there may be interference).