AT-09 Bluetooth 4.0 UART Transceiver Module CC2541 Compatible with HM-10 GT 2 Timing Belt Pulley 6.35mm Bore Width 10mm for RepRap 3D Printer Damaged items during shipping are

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AT-09 Bluetooth 4.0 UART Transceiver Module CC2541 Compatible with HM-10 GT 2 Timing Belt Pulley 6.35mm Bore Width 10mm for RepRap 3D Printer Damaged items during shipping areAT 09 Bluetooth 4. 0 UART Transceiver Module CC2541 Compatible with HM 10 AT 09 Bluetooth 4. 0 UART Transceiver Module CC2541 Compatible with HM 10 The AT 09 is a module that contains a BLE chip (a CC2540 CC2541). This module allows performing serial communication with the BLE chip thanks to an Rx and a Tx pin. This module is also very similar to the HM 10 module and is also compatible with it. So if you have some experience with the latter, you will