I’m currently a computer engineering student from lorma colleges and we’re currently doing our design project.
Our project is called an advance helmet. A helmet that is capable on creating a communication between the helmet and the motorcycle ignition switch.
My main problem is:
I’m using 3 different sensors which fingerprint scanner uses 3.3V, ultrasonic sensor uses 5V and an alcohol sensor which uses 3.3 V. I also included a Bluetooth module (HC-05) which uses 5 V but I only have three Li-ion batteries which has 3.7 V and 2200 mAh.
Can I power up all of the components using three 3.7 V power source even if their is a difference on the voltages in each components? What kind of component should I use to regulate the voltages or boost up the voltages in every component to meet the required voltage?
I hope someone helps me to solve my problem.