Design with Adafruit CH334F Mini 4-Port USB Hub Breakout in Cirkit DesignerThe Adafruit CH334F Mini 4-Port USB Hub Breakout (Part ID: 5997) is a compact and versatile USB hub designed to expand a single USB port into four functional USB ports. Powered by the CH334F chip, this breakout board ensures efficient data transfer and power management, making it ideal for a wide range of USB connectivity applications. Its small form factor and ease of integration make it a perfect choice for embedded systems, prototyping, and DIY projects.
This circuit consists of an ESP32 CAM module powered by a Micro USB breakout board. The USB breakout board supplies 5V and ground to the ESP32 CAM, enabling it to function and perform tasks such as image capture and processing.
Open Project in Cirkit Designer
This circuit powers a 15.6-inch capacitive touch display and a Raspberry Pi 3B using a USB Type C power delivery breakout and two buck converters. The Raspberry Pi connects to the display via HDMI and USB for touch functionality, while the power delivery breakout provides regulated power to both the display and the Raspberry Pi through the buck converters.
Open Project in Cirkit Designer
This circuit features an ESP32 CAM module interfaced with a SparkFun USB UART Breakout for serial communication, allowing the ESP32 to communicate with a computer or other USB host. A BC547 transistor is used to control an LED, with the base driven by one of the ESP32's GPIO pins through a resistor, and multiple piezo sensors are connected to the transistor's emitter, likely for sensing vibrations or impacts. The 5V Adapter provides power to the ESP32 and the LED, while the ground connections are shared among the components.
Open Project in Cirkit Designer
This circuit features two Arduino Pro Mini microcontrollers interfacing with various sensors and actuators. One Arduino reads data from an ADXL345 accelerometer and communicates with an RS232 module, while the other controls a 2-channel relay to manage two 12V LEDs, a 1-channel relay to control a red lamp, and a buzzer. Power is supplied by 9V and 12V batteries.
Open Project in Cirkit DesignerThe Adafruit CH334F Mini 4-Port USB Hub Breakout is built around the CH334F USB hub controller chip. Below are the key technical details:
| Parameter | Value |
|---|---|
| USB Standard | USB 2.0 (Backward compatible with USB 1.1) |
| Number of USB Ports | 4 |
| Input Voltage | 5V DC (via USB input) |
| Data Transfer Rate | Up to 480 Mbps (High-Speed USB 2.0) |
| Power Management | Built-in overcurrent protection |
| Dimensions | 50mm x 30mm x 10mm |
| Operating Temperature | -40°C to 85°C |
The breakout board features a USB input port and four USB output ports. Additionally, it includes solder pads for optional connections. Below is the pin configuration:
| Pin/Port Name | Description |
|---|---|
| USB IN | USB Type-A input port for connecting to the host. |
| USB OUT 1-4 | Four USB Type-A output ports for connecting devices. |
| VCC | 5V power input (optional solder pad). |
| GND | Ground connection (optional solder pad). |
| D+ / D- | USB differential data lines (optional solder pads). |
The Adafruit CH334F Mini 4-Port USB Hub Breakout can be used with an Arduino UNO to expand its USB connectivity. Below is an example of how to connect and use the hub:
#include <USBHost.h> // Include USB Host library
USBHost usb; // Create USBHost object
void setup() {
Serial.begin(9600); // Initialize serial communication
while (!Serial); // Wait for serial monitor to open
Serial.println("USB Hub Test");
if (usb.begin()) {
Serial.println("USB Host initialized successfully.");
} else {
Serial.println("Failed to initialize USB Host.");
}
}
void loop() {
usb.Task(); // Process USB tasks
// Add code here to interact with connected USB devices
}
USB Devices Not Detected:
Overcurrent Protection Triggered:
Slow Data Transfer Speeds:
Q: Can I use this hub with a Raspberry Pi?
A: Yes, the Adafruit CH334F Mini 4-Port USB Hub Breakout is fully compatible with Raspberry Pi devices. Simply connect the USB IN port to one of the Raspberry Pi's USB ports.
Q: Does the hub support USB 3.0 devices?
A: The hub is designed for USB 2.0 but is backward compatible with USB 1.1. USB 3.0 devices can be connected, but they will operate at USB 2.0 speeds.
Q: How do I provide external power to the hub?
A: Solder wires to the VCC and GND pads on the breakout board and connect them to a 5V power source. This is useful for powering high-current USB devices.
Q: Is the hub compatible with microcontrollers other than Arduino?
A: Yes, the hub can be used with any microcontroller or single-board computer that supports USB host functionality.