Money Scanner
A scanner made using an RFID reader and an Arduino UNO. This is made to be used by people who have some trouble counting money, to better help them in their lives. The audience for this scanner is mainly people who have trouble counting money.
Supplies
- Arduino UNO R3 (https://www.amazon.com/Arduino-A000066-ARDUINO-UNO-R3/dp/B008GRTSV6)
- RFID-RC522 (https://www.amazon.com/RC522/s?k=RC522)
- 1.3 inch OLED Display (https://www.amazon.com/128X64-Serial-Display-Module-White/dp/B075H4CSXF)
- Eleven M-F 20 Pin Dupont Wires (https://www.amazon.com/dupont-wire/s?k=dupont+wire)
- USB B Cable (https://www.amazon.com/usb-type-b/s?k=usb+type+b)
- RFID stickers (https://www.amazon.com/Stickers-Adhesive-Compatible-NFC-Enabled-Smartphones/dp/B07GFHLZD1/ref=sr_1_17?keywords=RFID%2BTag&qid=1652978436&sr=8-17&th=1)
Plug in the USB Cable to the Arduino
- After plugging the USB cable into the Arduino, plug the other end into your computer (one that can use Arduino IDE)
Use Dupont Wires to Connect RFID Reader With Arduino
RFID to Arduino
SDA to 10
SCK to 13
MOSI to 11
MISO to 12
GND to GND
RST to 9
3.3V to 3.3V
- Nothing should be in IRQ
Use Dupont Wires to Connect OLED Display to Arduino
OLED to Arduino
GND to GND
VCC to 5V
SCL to A5
SDA to A4
Make a Box for the Scanner
- Go to Makercase.com and choose a basic box
- Width is 90 mm (Outside Dimension)
- Height is 35 mm (Outside Dimension)
- Depth is 90 mm (Outside Dimension)
- Material Thickness is 3mm
- It's a closed box
- Edge Joints can be finger or T-Slot
- Make sure to make a hole for the Arduino to be plugged into
- Make sure to make a rectangle cut-out where the OLED Display can be seen (4 holes as well)
Place Everything Into the Box
- Place everything accordingly into your box
- Make sure the OLED Display can be seen (Use bolts and nuts to secure the OLED Display to the top of the box)
- Make sure the Arduino can be plugged into the computer from inside the box
- Make sure the RFID reader still can be able to read the RFID tags/cards from inside the box
Make Fake Money
- Print out any paper money
- Using RFID stickers, place each one on top of paper money to simulate actual money
Get Code for the Scanner/Fake Money
- Open Arduino IDE
- Plugin the scanner once everything is done
- Go to https://github.com/greiman/SSD1306Ascii, press Code, and download ZIP
- Go to https://miliohm.com/mfrc522-rfid-reader-with-ardui... and download 'RFID master library' and 'RFID library'
- Download the Money Box code and upload it onto Arduino IDE
- Open the serial monitor
- Scan the RFID stickers over the scanner, each sticker serial number should pop up
- Put the serial number of each RFID sticker into the right place in the code and make the value match the fake money the sticker is on
- Upload the code once again to the save the changes