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Haejin Song
About Me
Hi, I am teaching some kids for science and computer as a volunteer.
1
illuminated_sensor
Ldr
Led
Transistor
Switch
Battery
Resistor
114
26 Apr 2023
2
basic_resist_and_bright_relation
Led
Switch
Lamp
Battery
Resistor
79
26 Apr 2023
193
Total Circuits Views
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