DIY Vending Machine with Arduino

DIY vending machine

This is companion article for my YouTube video about how to make DIY Vending Machine using arduino and Coin Acceptor. This Vending machine works like real. It can sense a right coin. Only accept the coin defined and add the balance. Here’s the video DIY Vending Machine with arduino Wiring Diagram The Code

How to use INA219 current sensor with arduino and Make DIY wattmeter with it

INA219 current sensor

If you want sense electric DC current, then you will have some current sensors options. The current sensor can vary depends on what needed. We can decide which sensor to use based on its capability to sense the current. In this tutorial we will learn how to use INA219. So why INA219? In my opinion, …

Temperature and Humidity Sensor DHT11 with arduino Tutorial – Make OLED Termometer

DHT11 with OLED display (DIY thermometer)

DHT11 is cheapest temperature and humidity sensor compare to another sensor. It has 3 pins that we can easily interface with arduino. It uses single-bus operation. DHT11 Specification PCB size 22.0mm X 20.5mm X 1.6mm Working voltage 3.3 or 5V DC Operating voltage 3.3 or 5V DC Measurement range 20-95%RH;0-50℃ Resolution 8bit(temperature),8bit(humidity) Compatible interfaces 2.54 …

How to draw or print bitmap to OLED display arduino

128x64 0.96 OLED display

This is actually continued from my previous article about how to use OLED display arduino – How to write text, draw shapes and draw bitmap. You should check that if you don’t know how. You can draw bitmap in this OLED display with some steps. Resize your image to fit the OLED display Convert image to …

Complete Tutorial for I2C OLED 0.96″ 128×64 Arduino Display

i2c OLED 128x64 arduino wiring diagram

If you are already bored with the conventional microcontroller LCD, I mean like 16×2 LCD. Maybe it’s time to try some fancy display to your microcontroller or arduino project. Now we will learn how to use the I2C OLED 0.96″ 128×64 display. This OLED is small but of course has more resolution and pixel than …

How to use GPS with arduino – GPS NEO 6M tutorial

NEO 6M GPS with arduino

GPS is kind popular right now. Many modern devices use this for tracking purposes or just help you navigate when you are lost. GPS Neo 6M is one of most popular GPS module that we can use easily with arduino. This module use serial to communicate with another device.  NEO 6M GPS Wiring with arduino …

How to use Infrared Remote With arduino

Infrared remote and receiver module for arduino

We can find infrared remote everywhere. Your TV, your Air Conditioner, and so many devices that use infrared remote. How if we build our device that can be controlled by infrared remote too? it’s simple using arduino. We just have to buy an infrared remote module. We will get infrared receiver module and the transmitter. …

How to use relay with arduino

Relay is switch that can be controlled with electronics controller such as microcontroller or arduino. so if you want to connect or disconnect a circuit you can simply use relay. There are so many types of relay in market. But in this tutorial we will learn how to use SPDT relay, which is enough for …

SD Card Reader Module with Arduino Tutorial

arduino and sd card module wiring

This is tutorial about how to use SD Card module with arduino. We will learn how to create, read, delete file and use this SD Card module as data logger.

Coin Acceptor or Coin Sensor Tutorial with Arduino

This Coin Acceptor works by compare the coin that already inserted in this sensor (blue color at sensor) with the coin that inserted at the front hole. If the coin is the same, the coin will accepted, but if coin is different, the coin will be rejected.