➀ Holtek introduces a battery-free wireless doorbell reference design utilizing kinetic energy harvesting, generating 600µJ per button press for RF transmission;

➀ The solution operates at Sub-1GHz frequencies (315-915MHz) with self-powered OOK modulation, supporting over 200,000 press cycles and integrated encoder/decoder MCUs;

➁ Features include a low-power receiver (-106dBm sensitivity), simplified RF circuitry, and complete design resources (BOM, schematics) for easy implementation.