The project utilizes a PIC16F628A with an on-chip comparator in order to feed the output from the op-amp directly into the PIC and extract the digital signal from an RFID card reader.
Sensing the presence and relative signal strength of wireless hotspots is made possible by building this small electronic wireless network detector project while having a feature of portability.
The wireless FM transmitter project enables a user to speak into the transmitter using a microphone where the voice can be heard on any FM radio within 25ft.
The VHF super regenerative receiver has been trimmed down to a single transistor without compromising its tremendous sensitivity and selectivity while maintaining the same clear audio.