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“With the portable Li-Ion battery powered FM radio receiver you can listen to your favourite radio station. This device is equipped with cost-effective components, including a CH32V003J4M6 32-bit RISC-V microcontroller, a RDA5807MP FM radio tuner IC, an audio amplifier …
“PocketRadio is an ATtiny402/412 controlled FM radio with RDS (RDA5807MP), an integrated audio amplifier (TC8871 or XPT8871), a LiPo battery charger (MCP73831 or TP4054), an OLED display (SSD1306) and three buttons. You can directly connect a protected 3.7V …