$20 to $100
A GPIO port handles both incoming and outgoing digital signals. As an input port, it can communicate to the CPU the ON/OFF signals received from switches or the digital readings received from sensors.
$20 to $75
It is a small storage device made up of NAND flash memory and a simple storage controller. An eMMC acts as the primary storage for portable devices like cell phones
$7 to $20
This component can give any microcontroller access to a WiFi network. The ESP8266 can either host an application or offloading all WiFi networking functions from another application processor.
USB power switch
1 × $2.00
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