The budget for smart ECG machine.

A budget is quantified financial plan and it is an important factor to realise this project objectives. A cost estimate is used to establish a project budget. In this project he list of components and estimation budget is state as below:

ü  Electrode lead for bio-potential

ü  AD620 for instrumentation amplifier (with by pass capacitor)

ü  LM 358 as a Low Pass Filter (additional fixed amplification).

ü  LM 311 as voltage comparator (to measure analog signal to interface with digital logic)

ü  CMOS (Digital to analog converter)

ü  PIC 16F84A (generate 256 different voltage level between 0V – 5V).

ü  Use of Elexol USB MOD3 to interface in PC.

PIC 16F84A

There are various version of Elexol USBMOD which is USB MOD1, USB MOD2, USB MOD3, USB MOD4 and USB MOD5. In this project the low-cost integrated module in USB MOD3 for transferring serial data over USB is match which project requirement. Based on the FTDI FT232BM USB UART IC, the USBMOD3 is capable of transfer rates of up to 1000k baud (RS232) and 3000k baud. Unlike the previous version of USB MOD1 and USB MOD2 which is not meet the project’s requirement. Meanwhile, the USB MOD4 and USB MOD5 are expensive (high cost) because it is much advance with the bidirectional data transfer can be switched between FIFO interface modes with high baud of transfer rate.