https://learn.sparkfun.com/tutorials/ml … no-library
There appears to be little to no information (merely a image) of how to hookup a MLX90614 Evaluation board with Micro Oled breakout display to show the object and ambient temperature of the MLX90614. Anyone has done it/or knows how to do it can share?
Unfortunately there isn’t a guide for that, the picture just shows you one possible use for the evaluation board.
You’d need to look at the hookup guides for both the display and the evaluation board and come up with your own firmware that outputs data from the board to the display in a fashion the display understands.
The image is how I want to use it but it only shows an image not a hookup pins guide which I appreciate if you could assist me on that.,
Could I seek your help or anyone’s else help on this? I tried asking on other forums but to no avail because I purchased Sparkfun products and thus am asking it here hoping someone would help! Read the troubleshooting guide and it referred me to here to ask forum too!
Below is the code I use:
/******************************************************************************
* MicroOLED_Demo.ino
* SFE_MicroOLED Library Demo
* Jim Lindblom @ SparkFun Electronics
* Original Creation Date: October 27, 2014
*
* This sketch uses the MicroOLED library to show all the functioanlity built into the library
*
* This example was modified for the Qwiic Micro OLED
* Joel Bartlett
* 04/12/17
*
* Development environment specifics:
* Arduino 1.0.5
* Arduino Pro 3.3V
* Micro OLED Breakout v1.0
*
* This code is beerware; if you see me (or any other SparkFun employee) at the
* local, and you've found our code helpful, please buy us a round!
*
* Distributed as-is; no warranty is given.
******************************************************************************/
#include <Wire.h> // Include Wire if you're using I2C
#include <SFE_MicroOLED.h> // Include the SFE_MicroOLED library
//////////////////////////
// MicroOLED Definition //
//////////////////////////
//The library assumes a reset pin is necessary. The Qwiic OLED has RST hard-wired, so pick an arbitrarty IO pin that is not being used
#define PIN_RESET 9
//The DC_JUMPER is the I2C Address Select jumper. Set to 1 if the jumper is open (Default), or set to 0 if it's closed.
#define DC_JUMPER 0
//////////////////////////////////
// MicroOLED Object Declaration //
//////////////////////////////////
MicroOLED oled(PIN_RESET, DC_JUMPER); // I2C declaration
void setup()
{
delay(100);
Wire.begin();
oled.clear(ALL); // Clear the display's internal memory
oled.display(); // Display what's in the buffer (splashscreen)
delay(1000); // Delay 1000 ms
oled.clear(PAGE); // Clear the buffer.
randomSeed(analogRead(A0) + analogRead(A1));
}
void pixelExample()
{
printTitle("Pixels", 1);
for (int i=0; i<512; i++)
{
oled.pixel(random(oled.getLCDWidth()), random(oled.getLCDHeight()));
oled.display();
}
}
void lineExample()
{
int middleX = oled.getLCDWidth() / 2;
int middleY = oled.getLCDHeight() / 2;
int xEnd, yEnd;
int lineWidth = min(middleX, middleY);
printTitle("Lines!", 1);
for (int i=0; i<3; i++)
{
for (int deg=0; deg<360; deg+=15)
{
xEnd = lineWidth * cos(deg * PI / 180.0);
yEnd = lineWidth * sin(deg * PI / 180.0);
oled.line(middleX, middleY, middleX + xEnd, middleY + yEnd);
oled.display();
delay(10);
}
for (int deg=0; deg<360; deg+=15)
{
xEnd = lineWidth * cos(deg * PI / 180.0);
yEnd = lineWidth * sin(deg * PI / 180.0);
oled.line(middleX, middleY, middleX + xEnd, middleY + yEnd, BLACK, NORM);
oled.display();
delay(10);
}
}
}
void shapeExample()
{
printTitle("Shapes!", 0);
// Silly pong demo. It takes a lot of work to fake pong...
int paddleW = 3; // Paddle width
int paddleH = 15; // Paddle height
// Paddle 0 (left) position coordinates
int paddle0_Y = (oled.getLCDHeight() / 2) - (paddleH / 2);
int paddle0_X = 2;
// Paddle 1 (right) position coordinates
int paddle1_Y = (oled.getLCDHeight() / 2) - (paddleH / 2);
int paddle1_X = oled.getLCDWidth() - 3 - paddleW;
int ball_rad = 2; // Ball radius
// Ball position coordinates
int ball_X = paddle0_X + paddleW + ball_rad;
int ball_Y = random(1 + ball_rad, oled.getLCDHeight() - ball_rad);//paddle0_Y + ball_rad;
int ballVelocityX = 1; // Ball left/right velocity
int ballVelocityY = 1; // Ball up/down velocity
int paddle0Velocity = -1; // Paddle 0 velocity
int paddle1Velocity = 1; // Paddle 1 velocity
//while(ball_X >= paddle0_X + paddleW - 1)
while ((ball_X - ball_rad > 1) &&
(ball_X + ball_rad < oled.getLCDWidth() - 2))
{
// Increment ball's position
ball_X+=ballVelocityX;
ball_Y+=ballVelocityY;
// Check if the ball is colliding with the left paddle
if (ball_X - ball_rad < paddle0_X + paddleW)
{
// Check if ball is within paddle's height
if ((ball_Y > paddle0_Y) && (ball_Y < paddle0_Y + paddleH))
{
ball_X++; // Move ball over one to the right
ballVelocityX = -ballVelocityX; // Change velocity
}
}
// Check if the ball hit the right paddle
if (ball_X + ball_rad > paddle1_X)
{
// Check if ball is within paddle's height
if ((ball_Y > paddle1_Y) && (ball_Y < paddle1_Y + paddleH))
{
ball_X--; // Move ball over one to the left
ballVelocityX = -ballVelocityX; // change velocity
}
}
// Check if the ball hit the top or bottom
if ((ball_Y <= ball_rad) || (ball_Y >= (oled.getLCDHeight() - ball_rad - 1)))
{
// Change up/down velocity direction
ballVelocityY = -ballVelocityY;
}
// Move the paddles up and down
paddle0_Y += paddle0Velocity;
paddle1_Y += paddle1Velocity;
// Change paddle 0's direction if it hit top/bottom
if ((paddle0_Y <= 1) || (paddle0_Y > oled.getLCDHeight() - 2 - paddleH))
{
paddle0Velocity = -paddle0Velocity;
}
// Change paddle 1's direction if it hit top/bottom
if ((paddle1_Y <= 1) || (paddle1_Y > oled.getLCDHeight() - 2 - paddleH))
{
paddle1Velocity = -paddle1Velocity;
}
// Draw the Pong Field
oled.clear(PAGE); // Clear the page
// Draw an outline of the screen:
oled.rect(0, 0, oled.getLCDWidth() - 1, oled.getLCDHeight());
// Draw the center line
oled.rectFill(oled.getLCDWidth()/2 - 1, 0, 2, oled.getLCDHeight());
// Draw the Paddles:
oled.rectFill(paddle0_X, paddle0_Y, paddleW, paddleH);
oled.rectFill(paddle1_X, paddle1_Y, paddleW, paddleH);
// Draw the ball:
oled.circle(ball_X, ball_Y, ball_rad);
// Actually draw everything on the screen:
oled.display();
delay(25); // Delay for visibility
}
delay(1000);
}
void textExamples()
{
printTitle("Text!", 1);
// Demonstrate font 0. 5x8 font
oled.clear(PAGE); // Clear the screen
oled.setFontType(0); // Set font to type 0
oled.setCursor(0, 0); // Set cursor to top-left
// There are 255 possible characters in the font 0 type.
// Lets run through all of them and print them out!
for (int i=0; i<=255; i++)
{
// You can write byte values and they'll be mapped to
// their ASCII equivalent character.
oled.write(i); // Write a byte out as a character
oled.display(); // Draw on the screen
delay(10); // Wait 10ms
// We can only display 60 font 0 characters at a time.
// Every 60 characters, pause for a moment. Then clear
// the page and start over.
if ((i%60 == 0) && (i != 0))
{
delay(500); // Delay 500 ms
oled.clear(PAGE); // Clear the page
oled.setCursor(0, 0); // Set cursor to top-left
}
}
delay(500); // Wait 500ms before next example
// Demonstrate font 1. 8x16. Let's use the print function
// to display every character defined in this font.
oled.setFontType(1); // Set font to type 1
oled.clear(PAGE); // Clear the page
oled.setCursor(0, 0); // Set cursor to top-left
// Print can be used to print a string to the screen:
oled.print(" !\"#$%&'()*+,-./01234");
oled.display(); // Refresh the display
delay(1000); // Delay a second and repeat
oled.clear(PAGE);
oled.setCursor(0, 0);
oled.print("56789:;<=>?@ABCDEFGHI");
oled.display();
delay(1000);
oled.clear(PAGE);
oled.setCursor(0, 0);
oled.print("JKLMNOPQRSTUVWXYZ[\\]^");
oled.display();
delay(1000);
oled.clear(PAGE);
oled.setCursor(0, 0);
oled.print("_`abcdefghijklmnopqrs");
oled.display();
delay(1000);
oled.clear(PAGE);
oled.setCursor(0, 0);
oled.print("tuvwxyz{|}~");
oled.display();
delay(1000);
// Demonstrate font 2. 10x16. Only numbers and '.' are defined.
// This font looks like 7-segment displays.
// Lets use this big-ish font to display readings from the
// analog pins.
for (int i=0; i<25; i++)
{
oled.clear(PAGE); // Clear the display
oled.setCursor(0, 0); // Set cursor to top-left
oled.setFontType(0); // Smallest font
oled.print("A0: "); // Print "A0"
oled.setFontType(2); // 7-segment font
oled.print(analogRead(A0)); // Print a0 reading
oled.setCursor(0, 16); // Set cursor to top-middle-left
oled.setFontType(0); // Repeat
oled.print("A1: ");
oled.setFontType(2);
oled.print(analogRead(A1));
oled.setCursor(0, 32);
oled.setFontType(0);
oled.print("A2: ");
oled.setFontType(2);
oled.print(analogRead(A2));
oled.display();
delay(100);
}
// Demonstrate font 3. 12x48. Stopwatch demo.
oled.setFontType(3); // Use the biggest font
int ms = 0;
int s = 0;
while (s <= 5)
{
oled.clear(PAGE); // Clear the display
oled.setCursor(0, 0); // Set cursor to top-left
if (s < 10)
oled.print("00"); // Print "00" if s is 1 digit
else if (s < 100)
oled.print("0"); // Print "0" if s is 2 digits
oled.print(s); // Print s's value
oled.print(":"); // Print ":"
oled.print(ms); // Print ms value
oled.display(); // Draw on the screen
ms++; // Increment ms
if (ms >= 10) // If ms is >= 10
{
ms = 0; // Set ms back to 0
s++; // and increment s
}
}
}
void loop()
{
//pixelExample(); // Run the pixel example function
lineExample(); // Then the line example function
shapeExample(); // Then the shape example
textExamples(); // Finally the text example
}
// Center and print a small title
// This function is quick and dirty. Only works for titles one
// line long.
void printTitle(String title, int font)
{
int middleX = oled.getLCDWidth() / 2;
int middleY = oled.getLCDHeight() / 2;
oled.clear(PAGE);
oled.setFontType(font);
// Try to set the cursor in the middle of the screen
oled.setCursor(middleX - (oled.getFontWidth() * (title.length()/2)),
middleY - (oled.getFontHeight() / 2));
// Print the title:
oled.print(title);
oled.display();
delay(1500);
oled.clear(PAGE);
}And my setup for the arduino:
setup for breadboard:
Micro OLED jumpers:
So I have a micro oled breakout display in I2C mode. D/C jumper set to 0, D1 and D2 connected together, BS2 set to 0, BS1 set to 1. I used the example code in i2c of the Micro Oled breakout display to test, but the oled display does not light up.
I connected 3.3v of Arduino to VDD of micro oled, GND of Arduino to GND of micro oled, A4 on arduino to SDA, A5 on Arduino to SCL, and lastly pin 9 on arduino to RST pin of micro oled but it does not light up
Hi, thanks for writing in.
It looks like your solder joints might not actually be making continuity between the headers and the PCB.
I would suggest that you review this tutorial on soldering and see if you can touch those joints up and see if that fixes the issue:
https://learn.sparkfun.com/tutorials/ho … 1528127798
I hope this helps.
I’m afraid there is no hookup guide for connecting the micro OLED display to the evaluation board.
I’d suggest looking at the [hookup guide for the micro OLED and modifying the board for I2C operation and then connecting power, ground, SDA and SCL to the evaluation board. You will need to write your own firmware that takes a reading from the MLX90614 and then sends it to the OLED for display. Sadly we can not help you write the firmware to do this, that’s a task you’re going to have to tackle on your own.
The example code for the [micro OLED and the [MLX90614 will get you started but you’re still going to need to combine both for a working system.
I’d suggest experimenting with the examples and getting just the MLX90614 and OLED working on their own first, then try writing your own code that combines the functionality of both.](SparkFun_MLX90614_Arduino_Library/examples at master · sparkfun/SparkFun_MLX90614_Arduino_Library · GitHub)](Micro OLED Breakout Hookup Guide - SparkFun Learn)](Micro OLED Breakout Hookup Guide - SparkFun Learn)
I have written my own firmware (code) and also the MLX90614 works by itself in I2C mode, OLED in I2C mode. Also managed to use arduino uno to display temperature recorded by MLX90614 evaluation board to display on MICROOLED, however the issue I am facing now is connecting MLX90614 board with micro oled, without the arduino.
Here is my setup:
Pin label of OLED (SPI Mode) connected to Pin label of MLX90614 (I2C)
D1 (SDI) to SDA
D0(SCK) to SCL
D2 (DO) not used/connected
D/C to PC1
RST to RST
CS to PC0
Hi all, I am posting this topic because I would like to ask if anyone managed to display the temperature recorded by MLX90614 evaluation board on a Micro OLED breakout. If you did please reply to this post as I have some questions to ask regarding your pin connections and code. Much appreciated! Thank you!
Is the way I set in I2c mode correct? Connect D1 and D2 together by soldering, Leave D/C untouched, Set BS1 to 1, BS2 remains untouched.