I need an experience PCB engineer to code the firmware for my PCB. The PCB is the main board used to control and manage a custom built power data logger.
- The microcontroller used is DS89C450-MNL 64KB Flash memory
- The serial flash memory 64MBit Spansion S25FL064KOSMFI011 is used for data storage
- The communication with PC through HID shall be done by 1] USB using MAXIM USB peripheral Controller MAX3420EECJ+. 2] Bluetooth, Sena OEM Bluetooth-Serial Module ESD100V2
-The firmware is require to talk to a power meter thru com port using modbus rtu protocol. The power data will be stored in the flash memory
The details of the functions and communication protocol will be provided