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In POS system, cashier computer connect to printer using serial rs232 usb or cable. We need to capture data from that connection, and parsing the data to get total amount for every transaction at POS, then send it to database server via internet. if require, using raspberry or arduino, also gsm modem to send the data. While capture the data, the POS pc still print bill normally.
Skills required are C Programming, Electronics, Embedded Software, Microcontroller, Python
P o i n t e r d e c l a r a t i o n f o r d a t a m e m b e r : M e t h o d 1 : i n t M : : * p x ; / / T h i s
#C Why don''t online compilers support the header file? What can I do to resolve this? PS. I have tried , does''nt work either. Thannk in advance.
Q: What are some ways try / catch / throw can develop software quality? A: By removing one of the reasons for if statements. The commonly utilized alternative to try / catch
how to pass array
In this problem you are given a board in which some of the elements are placed as shown in diagram below. Each element represents a color. Fill the other elements in the board, suc
Floating literal They can be written in common decimal as well as scientific notation (floating point representation). By default it is of type double. F, L is applied only to
Write a function that calculates the number of elapsed days between two dates. For example the days between Feb 3, 1970 and June 21, 1980? Becareful for the Leap year.
recsection method source code for searching position
Within C we access external devices by means of a pointer i.e. address. The address could point to any memory mapped device i.e. Ram, Rom, Duart, Disk drives etc. Therefore there i
The following is the formula that can be used to complete that calculation: Monthly Payment = Monthly Interest Rate / (1 - (1 + Monthly Interest Rate) -Payment Interval )) *
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