Rakstore 2Pcs Jdy-31 Spp-C Bluetooth Serial Pass-Through Module Wireless Serial Communication Replace Hc-05 Hc-06Working frequency: 24gHZcommunication interface: UARTBluetooth version: Bluetooth 30 SPP Working voltage: 18-36V (33V recommended)Transmitting power: 8db (max)Receiving sensitivity: -97dbm Transmission distance: 30 metersAntenna: Built..

Rakstore 2Pcs Jdy-24M Bluetooth Module Ble 50 Mesh Zigbee Bluetooth Serial Port Transparent Transmission Master-Slave ModuleWorking voltage: 19-36VWorking temperature: -4085Ac Bluetooth-compatible version: BLE50 Maximum transmit power: +4dbm communication interface: UARTAntenna: PcB onboard antenna Receiving sensitivity: -96 dbmFeatures of Raks..

Rakstore Ht16K33 Led Dot Matrix Drive Control Module Digital Tube DriveThe HT16K33 is a memory mapping and multi-function LED controller driver Operating voltage: 45V55V 16*8 bits RAM for display data storage 13 x 3 (MAX) matrix key scanning I2c-bus interfaceFeatures of Rakstore Ht16K33 Led Dot Matrix Drive Control Module Digital Tube Drive The..