The Whadda WPI302 HC-05 transmission module allows you to integrate a microcontroller into a Bluetooth network. * Frequency: 2.45 GHz * Asynchronous speed: max. 2.1 Mbps * Security: authentication * Profile: Bluetooth Serial Port * Power supply: +3.3 VDC * Working temperature: max. 60°C * Chip: CSR (Cambridge Silicon Radio) BC417 bluetooth v2.0 https://elecena.pl/product/27149357/whadda-wpi302-hc-05-transmission-module 2024-11-06 https://elecena.pl/product/27149357/whadda-wpi302-hc-05-transmission-module 2025-02-06