If this is going to be a product, I have to be able to sell it and make some money. Typically the markup would be something like 3-4 the COGS. Since I'll sell it online only, I can get away with 2x. So, looking through all the components, how much can I estimate for a sale price?
|Part||Link||Quantity||Cost||Cost Extended||Bulk Estimate||Bulk Extended|
|ATTiny84||Digikey - ATTINY84A-SSFR||10||0.7||7||0.7||7|
|WS2812B Strip||Amazon - B01N07A6NP||10||3.46||34.6||0.75||7.5|
|Connector||Amazon - B01EPLAN42||10||1.488||14.88||0.5||5|
|Power Supply||Amazon - B019P1HGME/||1||9.99||9.99||10||10|
|Power Supply Switch||Amazon - B00ME5YAPK||1||5.99||5.99||3||3|
|Power Supply Enclosure||Polycase - hd-45fmmt||1||13.28||13.28||10.8||10.8|
This assumes 10 strips per unit, a 100 foot line, and power supply. It's just raw materials and not time or shipping. That means even if I purchase in bulk, I'm going to have a cost of goods sold around $100 assuming the labor involved is not too time consuming. After the first tests, it might take an hour per set of 10, so $100 for COGS seems reasonable. That means I have to sell these strips for $200 in order for it to make sense. They are pretty cool, but most dumb light sets (LED) sell for $30 or less, so I'd have to show a lot more value. I don't know. Maybe people will buy them. I'll have to work on marketing.