| About this project: A Hidden Flash-Memory That Only you know how to turn it on and use it secretly. This is a DIY hack project that allows you to recycle your broken hard-drives back to live and turn them to something useful. here are the costs and list of devices for those who will love to make their own: 1.the HDD, $8 from 2nd hand shop. 2.The light sensor light, $5 from electricity store,(it was new being honest). 3.the 5V DC relay, $5 from electronic shop (new) 4.the resistors $4 from electronic shop (new), you can use old ones too from some broken circuit. 5.the clip lights amount 2, each around $6, it was used only by me. 6.USB cable $3 from 2nd shop. 7.USB charging cable for phone, $4 from computer store (new). 8.LEDs $12 from DIY store, New. 9.Pen hold wood chunk, and super Glue around $6, DIY store New. 10. Metal little thing for the smartphone stand and nuts and bolts, total around $7 from DIY store. 11. Switch $4 new, you can use an old one too. 12. the variable resistor and diode, from an old PC power supply, i had at home. 13.Transistor got it from an old circuit, anyone would work, just while it comes about NPN and PNP, just little different connections. 14.Flash memory $ 6, i had at home. 15.little PCB, $4 from DIY store, new. 16. little flash light $2 from DIY store. total: $ 74 ~ $80 with this amount ($80) you can build your own, and use it for ever and enjoy it. This is the full Schematic Diagram: goo.gl Link for the PDF of Calculations and some more ... |
