1. First think first, the concept.This sketch is my very first idea of what i might build. Its gonna be a snack vending machine, accepting coin as...

2. Maybe this step is not necessary for every people, but for me, and for this project, its crucial.I create solidworks model. And i mean really fu...

3. To filtering coins, i am using multiple step as below:First filter: Using slot coins dimension, i can determine which coins size are able to ent...

4. Get your arduino ready and prepare everything needed.This is what i use:1 Arduino Uno. (should be use Arduino Mega, more IO) 1 Sensor shield. 3...

5. This is one of the most important part on vending machine, delivering mechanism.I am using spiral mechanism, with alluminium wire (2mm wire diam...

6. Of course identifying coin using "Coin acceptor module" would be more practical and simple solution, but since this is my final projec...

7. I am using 3 infared sensor for product detection when its fall from being pushed/moved by spiral mechanism.When product fall, it will trigger i...

8. In this project, i make the LCD showing information (in Indonesian currency) about accepted coin value, everytime customer enter a coin. It also...

9. Finally, finished Snack Vending Machine. ;)After 3 months, or so, i am ready to do some final test to this machine, from payment/coin test, prod...

10. Some ideas to improve this Snacks Vending Machine:Add some coin changer mechanism.Accept paper money.Accept bitcoin and/or digital payment.Show...