[KongchangAI]
Unverified50% confidenceFactTime unknown

通过对蜂鸣器施加不同频率的PWM信号,可以模拟不同音符,从而演奏完整旋律

1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026

Sources

Related Claims

Cite This Claim

Stable URI
https://kongchang.com/claim/55123
API
curl https://kongchang.com/api/v1/knowledge/claims/55123
MCP
get_claim(id=55123)