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RDA5807FP portable radio

Overview

A simple radio with the RDA5807FP chip as its core, powered by a CR2032 battery. The headphone cable doubles as an antenna. It has four independent buttons. The functions are volume up, volume down, automatic channel search plus and automatic channel search decrease. Actual picture:

Power consumption problem:
A new CR2302 can be used continuously for 1.5 hours. After 1 hour of continuous use, a beeping sound will appear when pressing the automatic search station (it may be that the battery cannot supply the voltage and voltage during the search). current), after 1.5 hours, turn off the switch for a period of time (about 1 minute), the battery voltage will increase, and it can continue to be used for a period of time (I have not measured how long it can continue to be used)

Design Files

test.mp4

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Update:2025-06-19 22:31:22

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