The app is built for our client in Netherland. He approached us with the idea of creating a notification app for deaf and hearing impaired. The app works together with Sensa RF gateway (use of Internet of things technology). The gateway receives signals from doorbells, smoke detectors, telephone ring, fire alarm, baby monitor, etc. and passes them to the app, thereby alerting deaf and hearing impaired. The App will alert the user visually, it vibrates according to a unique pattern, plays a sound and it flashes.
The idea behind this app is to help the deaf and hearing
impaired with their day-to-day activities.
The app is for special users who are deaf and hearing imparied, so finding out a suitable way to send alert for events was a real challenge, as most of the alert notifications require hearing ability. So the notification has to be in the form of standard icons / images, with vibration and LED flash. Another challenge was to register for specific Ipv4 multicast group so that the app can send notification even if there is no internet connection or the app is running in bacground. The challenge was to keep application sockets active to receive signals from local network.