Desktop queue call terminal with LCD screen and function buttons

Desktop RS485 ticket call terminal

Desktop call terminal allows your staffs to call the next ticket in accordance with the specified authorization list and rules in your queue management system. Its designed with minimum complexity, maximum usability. It has dedicated buttons for call ticket, recall ticket and transfer ticket for useful applications. Integrated LCD Information screen shows waiting tickets, service time and serving ticket information to staffs on back-lighted screen.

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Two-line LED queue display showing ticket numbers 1235 and 1236 with counter assignments

10×42 and 10×56 pixel matrix displays

Matrix led displays shows numbers and alpha numeric characters. In addition to numbers, it displays scrolling texts and symbols programmed from the computer. Device communicated with RS485 half-duplex line only with 2 cables up to 1200m distance. It is designed with PIC microprocessor. 5×7 dot matrix led displays are used in the design. Firmware is written with C/C++ languages by me. Almost all hardware related libraries in firmware are written by me.

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Q-smart ESP-based control board with voltage regulators and shift registers

IEEE 802.11 and RS485 protocol, Desktop call terminal

Desktop call terminal device for queue management systems. It provides the workflow between the user and the customer.The device works on IEEE 802.11 Wifi networks. Besides Wifi, it supports RS485 communication protocol. The RS485 communication protocol used by the hardware belongs to me. The protocol successfully performs bidirectional communication on a half-duplex line.

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