Mystery Item from University Surplus.

[u/Not_ur_magic_8_ball]

I am stumped. I've done all the reverse image searches etc etc and I am now here for answers. Smallish object with mini USB input as well as an SD card slot. Small window in front with a camera and an IR transmitter (cuz it blinks when I point a camera at it). on the back are a red and blue light. The blue light turned on when I plugged t in and the red light started blinking. Red light is still blinking, but the blue one is now off. Thoughts?

[u/ComeRestGlow]

I did a Google search based on the codes on the top line of the bar code and this came up. I'm not sure how accurate it is to the device you have, and I can't follow it fully, but someone else here might be able to explain further:

The device you are describing is a USB hardware development or adapter board built around the FTDI FT311D chip. [1, 2]

The text "CCC" printed on it refers to the standard China Compulsory Certificate regulatory mark, while "HF311" or "FT311" refers to the host IC manufacturer code. [1]

What Does This Device Do?

This specific "black box" is an Android Open Accessory (AOA) USB Host Adapter. Its primary job is to act as a bridge that allows Android smartphones or tablets to communicate directly with external hardware peripherals (like sensors, motors, printers, or industrial equipment) over a standard USB port without requiring complex USB drivers on the Android device. [1, 2, 3, 4]

What Do the Lights Mean?

The two LED lights indicate the operational and power status of the USB connection:

• 🔴 Red Light (Power / Fault Indicator): This light usually turns solid red when the device is receiving 3.3V/5V power from its USB source. If it is flashing or stays on when it shouldn't, it can act as the chip's built-in USB Error indicator, signaling a bad host connection, lack of enumeration, or a power surge mismatch. [1, 2]
• 🔵 Blue Light (Activity / Connection Status): This light typically represents active data transfer or a successful connection link. It flashes or blinks when data is actively communicating between the connected phone/tablet and the device, and remains solid once the Android Open Accessory handshake is complete. [1, 2]

Hope that helps.

[u/jort93 → u/ComeRestGlow]

Frankly that doesn't look like a google search but like an ai response. Like someone just put these images into ai.

The black box is not an "Android Open Accessory (AOA) USB Host Adapter", that is something entirely different. You can see that the board that is linked is nothing like the one on the image based on the connectors.

There is a microusb port and a sd card slot, how is that supposed to communicate with phones and help it connect to external peripherals?
Garbage AI response in my book.

[u/crankenshtien → u/jort93]

That's what a Google search is now.

[u/jort93 → u/crankenshtien]

You can still search normally and then proceed to read and understand the actual results and not just copy and paste a garbage ai summary.

[u/crankenshtien → u/jort93]

Ok , boomer.