Can we use the BLE1 AND BLE2 chips in the mesh network ? Does it pass the signals from one node to other ? Eg: 1 lighting demo project on BLE1, and other one on BLE2 .

[Winfred LU]

If you mean BlueNRG-1 and BlueNRG-2, the answer is Yes.

STSW-BNRG-MESH supports devices : BlueNRG-1, BlueNRG-2, BlueNRG-MS, BlueNRG-2N, and modules BlueNRG-M0, BlueNRG-M2.

https://www.st.com/content/st_com/en/products/embedded-software/wireless-connectivity-software/stsw-bnrg-mesh.html