4 Conclusion

Starting with two PIC microcontrollers and a handful of other Microchip components, we have shown how to integrate everything into a wireless doorbell system. This application note describes the complete signal flow and hardware implementation – from the capacitive touch sensor, through the microcontroller’s EUSART, across a data pipe implemented over a wireless Bluetooth connection, through a second EUSART and finally to an LED light stick. It also describes the simple software macros built into the application code that allow the user to fully use the RN4678 Bluetooth module and the NeoPixel LED Stick. If there is one drawback, it may be that when the wireless cubicle doorbell is fully implemented, it may be much harder to ignore the coworkers who come to your cubicle door.