Project showcase
Matrix Orbital EVE2 TFT, Servo and an AMS Magnetic Sensor

Matrix Orbital EVE2 TFT, Servo and an AMS Magnetic Sensor © MIT

A Matrix Orbital EVE2 3.5" EVE2 TFT, a servo and an AMS Magnetic Sensor Dev kit to show an on-screen 270-degree gauge with 3D-printed knob.

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Components and supplies

Apps and online services

About this project

EVE Knob Control Demo in action!

In this project we are going to play with a magnetic sensor, a generic servo, and a Matrix Orbital EVE2 SPI TFT to show position with an on-screen gauge. We wanted to test our new Scoodo EVE2 Shield, play with our 3D printer to make the knob and test the speed of the EVE2-35G SPI TFT on-screen updates with a gauge.

Hardware

  • EVE2 SPI TFT 320x240
  • Arduino Uno
  • AS5048A-TS Magnetic Position Sensor
  • Power Adapter (optional)
  • Generic Servo

Software

  • Arduino IDE

Code

EVE2 Knob Code
Using the AS5048B from AMS allows the knob to rotate freely and infinitely while reading the position via I2C.

Schematics

Block Diagram
Block diagram for the Arduino Uno, EVE2-35G. Generic Servo and AMS Magnetic Sensor. The Arduino EVE2 Shield is connected to the Arduino and is broken out for visibility.
Block diagram oji1bexkjg

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