10x Arduinos - $44
10x Arduinos - $64 (inflation sucks)
14x RFID stuff - $42
Other stuff from a long time ago - $~20
2x LED 4 Seven Segment Displays - $1.52
Jumper Wires - $5.78
10x USB plug - $17.32
Resistors - $3.92
Wire Terminals - $11.47
MP3 module - $3.22
LED strip - $13
Jumper wires - $12
Alligator clips (didn't use) - $5
3x Arduino mega - $29
Seven segment display - $2.50
10x Push Buttons - $3.15
2x Power Supply - $25.66
Relay Board - $7.30
x20 Buttons - $10
40x PCB mounts - $10
10x 1/4 plug male/female - $9.42
Wire and resistors - $2
Wire terminals - $5
Computer adapter - $6
RJ45 Connectors - $10
Relays - $10
Noise Isolator - $10
2x Ethernet Cable - $15
3x USB Cable - $10
Audio Extension Cable - $10
3x Extension Cord - $17
3x Extension Cable - $10.50
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$445.75