@bighun me too! I have seen that M5Flow blocks programming has the option of configuring Bluetooth, but there are two alternatives, BLE Central and BLE peripheral. I do not know which one should be used. I have a Core2 device. I hope someone uploads some guidance on how to do it to, for example, send sensors data to another BT device. Regards. Alvaro [image: 1672158968372-c8c5716c-dee8-468b-927b-81676e4ad855-image.png]