Trellis Shield Latching Keyboard Test Circuit

Trellis Shield Latching Keyboard Test Circuit in proteus

Proteus simulation
Trellis Shield Latching Keyboard Test Circuit, proteus diagram
Trellis Shield Latching Keyboard Test Circuit

Trellis Shield Latching Keyboard Test Circuit in proteus

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In this article we will learn how to make Trellis Shield Latching keyboard test circuit in proteus.
In the last post we will learn how to make Arduino 4 channel Relay Numato shield circuit in proteus. You can visit our website,
I hope you appreciate my work, let’s discuss about today’s project.

 

Components:

  1. Arduino UNO
  2. IC (HT16k33)
  3. Keypad
  4. Diod
  5. Resistors
  6. Push button
  7. LED
  8. Jumper wires

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Construction…

  • Connect SDA pin of IC with D18 pin of Arduino
  • Connect SCL pin of IC with D19 pin of Arduino
  • Connect pin 10 of IC with –ve side of Diod
  • Connect +ve side of Diod with D2 pin of Arduino
  • Connect pin 2 of IC with COM0 through +ve side of Diod
  • Connect –ve side of Diod with connecting terminals
  • Connect pin 3 of IC with COM1 through +ve side of Diod
  • Connect –ve side of Diod with Input 1 of Keyboard
  • Connect pin 4 of IC with COM2 through +ve side of Diod
  • Connect –ve side of this diod with 2nd Input of Keyboard
  • Connect all Rows and Columns of Keyboard with Rows and Column pins of IC
  • Connect VCC pin of Arduino with +5V
  • Connect one side of resistor with +5V
  • Connect 2nd side of resistor with one side of Push button and then connect them with Reset pin
  • Connect 2nd side of Push button with –ve side of LED and then connect them with GND
  • Connect +ve side of LED with one side of another resistor
  • Connect 2nd side of this resistor with D13 pin of Arduino

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Working…                                                                                    

A “Trellis Shield” likely refers to the Adafruit Trellis M4 Express, which is a microcontroller board designed for making custom keyboards, musical instruments, and other interactive projects. This board is equipped with an Atmel ATSAMD51 microcontroller and a set of silicone rubber button pads with individual LEDs underneath.

Applications…

  1. Musical Instruments
  2. Game Controllers
  3. Custom Control Panels
  4. Data Entry Devices
  5. Home Automation and IoT Control

Advantages…

  1. Durability
  2. Reduced Power Consumption
  3. Programmability
  4. Compact Design
  5. Easy Maintenance