▲ ▼ Alert the presense of powerful magnets nearby
British Heart Rhythm Society has recently warned that the magnet in iPhone 12 series can suspend the Implantable Cardioverter Defibrillator(ICD) a life saving implant used by patients with high risk cardiac conditions.
With growing number of electronic appliances using powerful magnets in our daily life a real-time alert system for magnetic field in the environment above certain threshold which could affect the implants is needed.
Smartphones have had sensors to measure magnetic fields called magnetometer for a long time for compass and other functions. There apps which use this data to measure magnetic fields around the phone.
Using this sensor and correlating it with the threshold for magnetic field for medical implants(10 Gauss in the case of ICD) we can build a solution to address this problem.