Up to 12 of this devices can be used to form a sub GHz mesh network based on the custom protocol. In this network, device can be master or a slave. Difference is, that the master has the access to the WiFi network and slave doesn’t. Data from slave is sent to the master through mesh network. Master will received all data from slave devices and it will send it to the cloud.
Requirements:
- Logging the data to the cloud over WiFI network
- Firmware upgrade via BLE interface
- Sub GHz mesh network
Major components:
- STM32L552
- ATWINC3400
- SPSGRF-915
- SST26VF032
Number of PCB layers: 4
BOM price: 58 USD
Realization time: 8 weeks
