Thumb Wheel Switch Interface Manufacturer,Supplier and Exporter in India

Thumb Wheel Switch Interface

Product Code : SCL-EELE-13185

Indian Lab Suppliers supplies the Thumb Wheel Switch Interface (Product ID: 13185) as part of its electronics engineering lab equipment range. It is a two-digit thumbwheel switch interface card for entering preset numbers from 00 to 99 into a microprocessor or microcontroller trainer.

Quick Answer

Each thumbwheel digit is set by hand from 0 to 9 and gives its value as a 4-bit BCD code, so the two digits together supply 00 to 99 on eight port lines. The program reads the BCD value through an 8255 port and can convert it to binary for use as a count, delay or set point. The card connects with a 26-pin FRC cable and comes with a user manual and sample programs.

Key Specifications

ParameterDetail
Switch2-digit thumbwheel, 00-99
OutputBCD, 4 bits per digit
Connection8255 port, 26-pin FRC
DocumentationUser manual with sample programs

Where This Is Used

Thumbwheel switches set values such as batch counts or timer presets on control panels; in the lab they pair with display cards such as Four Digit Seven Segment Display + FRC (Product ID: 13175), on trainers such as 8085 Microprocessor Trainer (Product ID: 13161). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.

Frequently Asked Questions

What range can be set?
00 to 99.

What code does it output?
BCD, four bits per digit.

How many port lines does it use?
Eight, for the two BCD digits.

Related Categories

Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment

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