JDY-33 is a classic Bluetooth + BLE dual-mode Bluetooth, can communicate with Bluetooth-enabled computers (desktop, notebook), mobile (Android, IOS). Can be applied to: Bluetooth POS machine Thermal printer Smart home control Automotive ODB testing equipment Bluetooth various transparent product applications Sharing charging treasure, sharing weight scale Technical data: Model:JDY-33 Working frequency:2.4GHZ Communication Interface: UART Operating Voltage: 1.8-3.6V Operating temperature: -40° - 80° Antenna: Built-in PCB antenna Transmission distance: 30M Master-slave support: Slave Dimensions: 26 * 13 * 1.7 mm (length, width, height) Bluetooth version: Bluetooth 3.0 SPP + BLE4.2 SMT soldering temperature: <260° Working current: 6.5mA Deep sleep current: <10uA Transmit power: 6db(maximum) Receiving sensitivity: -96dbm SPP maximum throughput: 16K bytes/s (Android. Windows) When connected with Android and computer Bluetooth, the communication speed can reach 16k byte per second, and no packet loss (supports serial port to continuously send and receive data) BLE 4K bytes/s (Android. IOS) BLE and IOS or Android connection communication speed 4K per second (supports 38400 baud rate continuous data transmission, higher than 38400 baud rate can not be sent continuously, the middle extension time) https://elecena.pl/product/23192620/jdy-33-spp-spp-c-dual-mode-bluetooth-3-0-module-compatible-with-hc-05-06-jdy-31-30 2023-04-10 https://elecena.pl/product/23192620/jdy-33-spp-spp-c-dual-mode-bluetooth-3-0-module-compatible-with-hc-05-06-jdy-31-30 2025-10-29