I would like to create a super lightweight pcb radio receiver that is less than 40 grams that will have 2 different beeps (depending on the signal sent from the radio transmitter), one ultrasonic between 15 and 20 kHz, and one regular beep between 2.5 to 3 kHz. It should be powered by a small battery like a CR2032, CR123A, hearing aid battery, etc. I want the signal that's being received by this device to come from something like a car remote fob, or something simpler if the channel switching feature is too complicated.
13 freelancers are bidding on average $439 for this job
Hi I am experienced electronics engineer with more than 14 years of experience. I have read the details and help you design these frequency detectors. Please get in touch to discuss it further Regards