10PCS Passive buzzer module low-level trigger/sound module alarm #TT

10PCS Voltage Detection Module Voltage Sensor electronic building block #TT

10 PCS HCF40106BE DIP-14 HCF40106 HCF40106BEY Hex Schmitt Trigger Chip IC

10PCS TMB12A05 5V integrated active buzzer 12095 electromagnetic type #YT

10 PCS HD74LS14P DIP-14 74LS14 LS14 Hex Inverter with Schmitt Trigger Inputs IC

10PCS Passive buzzer Low level trigger/buzzer control board sound module #YT

10PCS Analog gray-scale sensor/Tracking module/Electronic building block #TT

10 PCS HCF40106BE DIP-14 HCF40106 HCF40106BEY Hex Schmitt Trigger IC Chip