ij96 / treadmill-hack Goto Github PK

Hello from Greece and merry X-mas
I want to connect my treadmill motor board with an Arduino R4 wifi and control it from there...
My board has pins only data + data - V+ and V- and the sensor pins for speed and incline so not sure how to connect it right with Arduino board...
To make Motor Board get enabled I short pin 2 (V+) with pin 4 (Data In) and then I hear the relay Clicks and the red led of the Board get enabled...
I found the datasheet of the 8bit microcontroller (24 pins) EM78P459 and was connected the pin ( PWM) of arduino with the PWM1 of the controller the GND of Arduino with the VSS/GND of microcontroller and VDD of microcontroller with 5V of Arduino.
The Arduino has a very simple code I found from the Internet about how to make a DC motor move
After do all these connections I said I see the motor making a kick start move but then nothing not even one revolution while same time I hear a buzz noize from motor like something make it hard to move...
Is it an issue with the code maybe or something else?
Help me please and thanks in advanced...