Arduino Projects by R

This project is a prototype and in this project I will be discussing about how your cards - such as credit cards, debit cards, gift cards - can be kept safe. Take a look at the pictures below to see how this project works. Device is not activated: (So the LED is orange in colour)  Device is activated: (So the LED turns green)  Device is activated: (LED turns red and buzzer alarm is set off when card is displaced) To see how the hardware is setup and the way this project works, please take a look at the YouTube video posted in the 'Final Look' section of this page. Supplies Arduino Uno R3/ Arduino Nano Solderless Breadboard - Full size Jumpers Jumper wires - [Male-to-Male] 30cm and 10cm (x7 each) 9V battery 9V battery terminal Active buzzer (KY-012) Light blocking sensor - also known as Photo Interrupter module (KY-010) Push button - also known as Key switch module (KY-004) Two colour LED module (KY-011) Setting

In this project, I will be using laser transmitter (KY-008) and photoresistor (KY-018) modules to provide security to my Google Home Mini. My Google Home mini will be placed inside the safety box and the switch will be pressed to arm the box and the led will change colour from orange to green.  The supplies and the final look of the project are included in my YouTube video embedded in this page. From left to right: Photoresistor (KY-018), Key switch (KY-004), Laser transmitter (KY-008) and Active buzzer (KY-012). You can also use a two colour LED module (KY-011) instead of using LED of different colours Connections: Key switch - D4 Red - D5 Green - D6 Common cathode (two-colour LED module) - Ground (GND) Active buzzer - D7 Laser transmitter - D8 Final Look If anyone is interested and require the codes or have any questions regarding this project, please contact me at arduinoprojectsbyr@gmail.com.

This is a prototype of one of my upcoming projects. I will be using a big sound sensor(KY-038) module. The sensitivity of the sensor can be adjusted by turning the little flathead screw.  The sensor on the top of the module, performs measurements which are sent to the amplifier to convert them into analog signals.  Supplies: Big Sound sensor (KY - 038) module LEDs - 03 (Blue ones are better) Resistor - 220Ω (x3) Solderless Breadboard - Mini Arduino Uno R3 / Arduino Nano Jumper wires - Male-to-Male (70cm) [x6] || Male-to-Male (10cm) [x1] Setting up you hardware Coding You will need these codes to check for systematic error (background noise). Codes for this project: Final Look