V
vennelakokkonda
Guest
我曾尝试与950NM红外线发射器和接收器pair.but couldnot获得D输出...任何人都可以请建议我一个适合心率测量的反射光传感器..应该敏感来改变光的强度..,或任何好的建议我超级红色LED的光探测器,也应变化敏感,在光照强度..
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