5 ms·
Could someone explain how this costs $5? Does that mean if you already have most of the parts laying around? I'm actually curious.
by escherize 9y ago
Could someone explain how this costs $5? Does that mean if you already have most of the parts laying around? I'm actually curious.
- sowbug 9y agoradio + application processor $3.18 https://m.aliexpress.com/item/1387904044.html https://m.aliexpress.com/item/1387904044.html OLED $2.59 https://m.aliexpress.com/s/item/32233342471.html https://m.aliexpress.com/s/item/32233342471.html The rest is passive junk that's probably about 25¢. That's more than $5, but this is what 120 seconds of searching on AliExpress turned up. Software is where a lot of the value comes from. I assume it's using a clever hack like http://dmitry.gr/index.php?r=05.Projects&proj=11.%20Bluetooth%20LE%20fakery http://dmitry.gr/index.php?r=05.Projects&proj=11.%20Bluetoot...
- painted 9y agowell: arduino [1]: 1.38$ nrf [2]: 0.55$ oled [3]: 2.33$ ------------------ total: 4.26$ like you said the passive components are pretty cheap, and you stay under 5$. [1] https://www.aliexpress.com/item/EYEWINK-1pcs-lot-ATMEGA328P-Pro-Mini-328-Mini-ATMEGA328-5V-16MHz-for-Arduino-5V-16M/32810156549.html https://www.aliexpress.com/item/EYEWINK-1pcs-lot-ATMEGA328P-... [2] https://www.aliexpress.com/item/LCD-Board-T420XW01-V2-06A39-1A-42WL68C-Logic-board-New-In-stock-In-stock-Best-price/583655445.html https://www.aliexpress.com/item/LCD-Board-T420XW01-V2-06A39-... [3] https://www.aliexpress.com/item/Free-Shipping-Blue-0-96-inch-128X64-OLED-Display-Module-For-arduino-IIC-SPI-Communicate/32681033995.html https://www.aliexpress.com/item/Free-Shipping-Blue-0-96-inch...
- deleted 9y ago[deleted]