I am currently trying to make a bicycle helmet smarter by adding GPS and GSM modules on it so that the helmet can contact the emergency services in case of any accident detected by the accelerometer.
Although I have some theoretical experience with sensors and microcontrollers, I have little practical experience. Hence, I was hoping to get some tips for this project, for example,
Modules - Provided, I want to use this in Sweden. Which GSM module to use? Which GPS module to use? How to detect impacts, current idea is to use an accelerometer?
Microcontroller - For prototyping, I am thinking to use Arduino uno, but in the future, all these components should fit on the helmet. What microcontroller is used for such compact products? And is a custom PCB the way to go for compactness?
Power consumption - Do these modules consume a lot of power? Which power supply shall be used, thinking about the size and also the number of hours it can work without charging?
Feasibility - Is this plan feasible, is having all these modules and power supply close to the head, harmful or it is not critical?
Support/Tutorials - I was able to find one online tutorial, ( https://circuitdigest.com/microcontroller-projects/arduino-based-accident-alert-system-using-gps-gsm-accelerometer ), and started digging into the components. Are there any other tutorials out there?
Thanking you in advance.