Lemon POS

Lemon is an open source point of sale for linux and other unix systems. It is targeted for the small and medium sized business, and has been conceived for ease of use.

It is a qt4/KDE4 application, so you must have installed kde4

It is considered a general point of sale, not focused to a specific sector. It can be used at a general store, a fast-food restaurant or a book store.

LemonPOS is translated to the following languages:

Spanish
Catalan
German
French -partially-
Chinesse -partially-
Portuguese BR -partially-


These are some features:
Tested with a parallel port ticket printer and a Star Micronics SP-100 thermal printer
Tested with a barcode scanner
It is probably that works with touch screens
It supports product photos
It has a grid view
It supports Group of products
It supports Special Orders (custom products)
and many other things...

CHANGELOG FOR LEMONPOS VERSION 0.9
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- BUGFIX: The weird crash is gone.
- BUGFIX: Availability check when incrementing a product on the list
- BUGFIX: Invalid Transaction's providerid caused not to be shown on squeeze. Fixed with the db script (fix and new)
- BUGFIX: Added a check for payment amount. The user by mistake can enter a barcode there.
- BUGFIX: Security procedures reviewd and improved. Some bugs caused malfunction of low security mode.
- BUGFIX: Product code input not accepted when qty starts with 0, for example 0.5x123456 .
- BUGFIX: Pie chart removed and replaced by a plot and labels.
- BUGFIX: Balance do not force login. Now balance = login. A balance does the balance and force login.

- Improvement: Allow to remove items from the purchase list (check-in).
- Improvement: Disable Drawer openning when using a CUPS driver printer. CUPS-printer can open it each time it prints.
- Improvement: Print Client name and id on ticket when a client is selected.
- Improvement: Cash-in/Cash-out needs authorization (ask for password when not in a low security mode).
- Improvement: Squeeze has a populated menu bar. Removed the left buttons-menu, replaced by toolbar buttons.
- Improvement: Some dialogs where redesigned. Product Editor...
- Improvement: Some new fancy message ballons, floating bars and dialogs were added. They are animated.
- Improvement: Added cash-out/cash-in information on printed balances.
- Improvement: A shortcut key '+' is added to the product code inputbox for going to payment amount inputbox.

- Added Feature: Correcting Stock. This is to track stock changes. On product editor, in order to change stockqty, it must be corrected.
- Added Feature: Printing using CUPS printers. Now tickets looks elegant on thermal printers. Two modes for this: big and small.
- Added Feature: LOGS on Administrative task. This are keept on database.
- Added Feature: User ROLES. Now is possible to have many administrators and supervisors.
- Added Feature: Added a config option for the ticket time on screen. it also can be closed by pressing 'ESC' key.
- Added Feature: New kind of products: Raw Products, Group Products. Raw are for custom/special orders.
- Added feature: Product GROUOPS/PACKS. An article can be a group, its stockqty is not used for anything, instead its contents stockqty.
- Added feature: Special Orders. Custom Products to be 'manufactured'. Like a cake or a custom computer..
If a special order is completely paid when ordering, when completing the order [delivered] it will not generate a ticket.
- Added feature: On Special Orders, the order is printed in addintion to the ticket.
- Added feature: The user can change Special Order's status.
- Added feature: New Printed Reports on Squeeze: Balances, Sales, End of day, General end of day, End of month, Low stock products, Sold out products.
- Added Feature: Ticket Messages based on the date.
- Added Feature: New way of applying a discount. Occassional discount: this cannot coexists with client discount (client discount will be ignored)
- Added Feature: Lock Screen. To let the user take breaks.
- Added Feature: Suspend and Resume sales. To let the user start a new sale without loosing the current sale.
- Added Feature: Some config options in lemon are saved on database to share it with squeeze.
- Added Feature: A config option to do not print GROUP contents on the ticket.