The Price of decoder parts

Well, the decoder is almost complete (trying to find the right headers to connect the servo to the board), and so far I have found out how much all this would cost me, knowing what I know now, and this is just for parts.

Below is a list of parts plus the prices

Product Code	Quantity	Product Description	Unit Price	Discounts	Line Total
22-0822	11	3 Way 2.54mm Kk Molex Housing	£0.13	£0.00	£1.40
58-0598	1	6n137 Highspeed Logic Gate Optocoupler	£0.79	£0.00	£0.79
64-0098	1	10k Cr12 0.125w Cf Resistor - Pack of 100	£0.69	£0.00	£0.69
47-3416	5	1n4148 Signal Diode 75v 150ma (tru)	£0.01	£0.00	£0.05
85-3077	1	12vdc 2.5 AMP International Plug Top Psu	£15.92	£0.00	£15.92
20-0960	1	Switchcraff DC Power Socket PCB Mount 2.1mm	£0.65	£0.00	£0.65
08-0919	2	1uf 2.5mm Y5v Dielect Ceramic Capacitor	£0.11	£0.00	£0.21
Nov-28	5	220µF 20% 35V 105°C Low Impedance Radial Aluminium Electrolytic Capacitor	£0.22	£0.00	£1.10
47-3313	1	7805 Regulator To-220 (tru)	£0.35	£0.00	£0.35
22-0545	1	TruConnect Single Row Header 36-Way (PCB) Plug	£0.20	£0.00	£0.20
78-0282	1	Omron Tactile PCB Switch B3F-1050 6x6 Projected	£0.32	£0.00	£0.32
21-3000	1	2 Way 10a Terminal Block 3.5mm	£0.13	£0.00	£0.13
				Order Subtotal	£21.81
				Delivery Charge	£3.99
				VAT	£5.16
				Order Grand Total	£30.96

These prices, however do not include the price of the boards and getting them printed $25.00 for three which included free shipping to the uk somehow.

Then there was the price of the initial Arduino, £10 or near enough from ebay.

And then as many servos as you like (supports up to 11 per board, so maybe £55.00 worth depending what ones you get and from where)

So considering this all adds up to about £40.00 just for the parts listed, then the time to write the program for the Arduino (add the extra £10-20 depending on your source) and you are looking at probably around £70.00 for the whole thing (oh, better add another powersupply just for the arduino which would up it to £85.92)

And for all that you could I suppose get two standard decoders made by company such as digitrax, or esu/bachmann which would do the same as this if not more.

Though having said that, I am glad I've made it, but will not be going any further with it as it is just too costly to contine on with and It would require me to swap all my points from seeps to servos or use a relay module with an adjusted program to run them.

So to summerise

Am I glad I did this?   Yes as it allowed me to learn new things

Would I do it again? Maybe, but not in this iteration