MOD-EKG output Via MOD-USB-RS-232 to external display / PC

[Wayneroha]

Hi Lub/Olimex,

Please find the attached document for further information including the screen-shot of the output. This is my second test results as per your previous instructions.

Thank you for your response. I tried once but it was failed. Again I tried after some time; I observed the following;

1. MOD-EKG:It had been powered-up using an external power-supply (a DC-Power-Supply) which provided 3.3V into the MOD-EKG;

a.       Result was; MOD-EKG powered-on but the four arrows either still or off on the LCD-screen. Some digital values were displayed on the LCD-Screen, the figure shown not changed when the HR1, HR2, HR3 and HR4 (PADs) had had been touched. Sometimes it displays alien characters or character styles on the LCD-screen.



b.      Sometimes, LCD-screen is not showing the four-arrows, when pad were been touched, or the four- arrows are displayed but never goes off. 



c.       Sometimes; when pads were been touched; the four arrows displayed and untouched the four arrows goes off. While keeping in touch with the pads; the four arrows displayed and it never goes off unit untouched.



2.       MOD-USB-RS232

It was powered on when connected to the laptop using the USB cable.



3.       While MOD-EKG connecting to MOD-USB-RS232

It had been used only two wires from the MOD-EKG to MOD-USB-RS232. These two wires connected two unit's pins as follows;

-          MOD-EKG's pin-3 (TXD) connected to pin-3 (RXD) of MOD-USB-RS232.

-          MOD-EKG's pin-4 (RXD) connected to pin-4 (TXD) of MOD0USB-RS232.

-          Result was as follows; there was a wave but not in proper order as it has to be.



Please guide me.



Thanking you,

Harindra