HMS‐ HMT‐Inverter and DTU‐WLite‐S DTU‐Pro‐S
Links to Whitepapers, FCC IDs and HMS-101 Module Details
Closeup Photos of the disassembled DTU-WLite-S / DTU-Pro-S and HMS-101 Modules without protective metal sheet
Links to several GitHub issues which have so far documented the details
After switching on the DTU, the initialization phase starts. This is where configurations in memory are retrieved and sub-areas in the DTU are configured with this information. A CMT2300A chip is installed in the transmitter and receiver unit. This chip takes on various tasks and has its task in receiving data from the inverter and forwarding it to the ARM chip. Just as well to send data to the inverter, for example to carry out a limitation.
How to disassemble the DTU?
PCB / front
PCB / backside
Modifications for logging
PCB / front
PCB / backside
Modifications for logging
Sources