This STM85 microcontroller based control card can be used to switch ON & OFF 17relays via serial communication (RS232 or UART TTL) .It can also read the status of 8-digit inputs .The relay output status & digital input status is continuously sent out as RS232 data string .It operates in 9600BPS,8-N-1 mode .This control card can be controlled via weighing scale PCB or via PC.
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