Step 1Parts, Pieces and Prices
I hope I don't have to tell you that these prices can and will change in time so don't be surprised if it costs a couple of quid more in a few months...
Black ABS Box (BZ75) x 1 @ £3.99
Strip board (JP46) x 1 @ £1.46
Solid core wire (BL94) x 1 @ £1.99
High efficiency red 5mm LED (uk48) x 1 @ £0.49
Chrome LED bezel (N88AX) x 1 @ £1.19
NE555 timer (QH66) x 1 @ £0.59
330 ohm 0.6W resistor (M330R) x 1 @ £0.17
1M ohm 0.6W resistor (M1M) x 2 @ £0.17
1uF 100V electrolytic capacitor(VH16) x 1 @ £0.13
CR2032 holder (L01AC) x 2 @ £0.59
CR2032 (ZB74) x 2 @ £2.99
I believe that's everything...
The total is £17.51, if I've added correctly. The most expensive parts are the box and the batteries. I could have bought them from somewhere other than maplin, and most likely somewhere cheaper (ebay for example), but I'm lazy and wanted to get everything I needed from the one place!
(side note: being that this project marks my return to electronics, I also had to buy a soldering iron, stand and solder... this fast became an expensive flashing box!)
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