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Witty Fox - ESP Programmer | USB to TTL Converter

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The Witty Fox ESP Programmer serves two primary purposes

  • USB to TTL Conversion: The device converts USB signals from a computer to TTL (Transistor-Transistor Logic) signals, allowing users to communicate with ESP modules that only have TTL-level serial interfaces.
  • ESP Programmer: The Witty Fox programmer enables users to upload firmware, programs, and sketches to ESP-based microcontrollers, such as ESP32 and ESP8266.

Key Features

  • USB Interface: The device features a standard USB connector for connecting to a computer.
  • TTL Serial Interface: The Witty Fox has a 3-pin TTL serial interface (RX, TX, GND) for connecting to ESP modules.
  • Auto-Baudrate Detection: The device automatically detects the baudrate of the connected ESP module, ensuring seamless communication.
  • 3.3V and 5V Compatible: The Witty Fox is compatible with both 3.3V and 5V ESP modules, making it a versatile tool for various projects.
  • Status LEDs: The device features status LEDs for power, RX, and TX, providing visual feedback during programming and communication.
  • Compact Design: The Witty Fox has a compact design, making it easy to integrate into projects and prototypes.
  • Easy to Use: The device is plug-and-play, with no additional drivers or software required for operation.

Technical Specifications

Operating Voltage

5V (from USB)

Output Voltage

3.3V or 5V (selectable)

Baudrate

9600bps to 115200bps (auto-detect)

Dimensions

35mm x 20mm x 10mm

Weight

10g

Operating Temperature

0C to 40C

Applications

The Witty Fox ESP Programmer is ideal for a wide range of applications, including

IoT development and prototyping

ESP-based project development (e.g., Wi-Fi, Bluetooth, and IoT sensor projects)

Debugging and testing ESP modules

Upgrading or reflashing firmware on ESP-based devices

In the Box

Witty Fox ESP Programmer | USB to TTL Converter

USB cable

Quick start guide

Warranty and Support

The Witty Fox ESP Programmer comes with a [insert warranty duration] warranty and dedicated technical support, ensuring users have access to resources and assistance when needed.

Pin Configuration

  • Witty Fox - ESP Programmer | USB to TTL Converter Pinout Explanation
  • The Witty Fox - ESP Programmer | USB to TTL Converter is a compact and versatile device that enables users to program and communicate with microcontrollers, such as ESP32 and ESP8266, using a USB interface. It features a range of pins that provide flexibility and ease of use. Below is a detailed explanation of each pin, along with connection guidelines.
  • Pinout Structure:
  • The Witty Fox has a total of 10 pins, arranged in two rows of 5 pins each. The pins are labeled on the component as follows:
  • Top Row:
  • 1. VCC (Red)
  • Purpose: Power supply (3.3V or 5V)
  • Connection: Connect to the power source (e.g., a USB port or a battery) to power the device.
  • 2. TXD (Green)
  • Purpose: Transmits data from the USB interface to the microcontroller (MCU)
  • Connection: Connect to the RX pin of the MCU (e.g., ESP32 or ESP8266)
  • 3. RXD (White)
  • Purpose: Receives data from the MCU and transmits it to the USB interface
  • Connection: Connect to the TX pin of the MCU (e.g., ESP32 or ESP8266)
  • 4. GND (Black)
  • Purpose: Ground connection
  • Connection: Connect to the ground pin of the MCU and any other ground points in the circuit
  • 5. DTR (Brown)
  • Purpose: Data Terminal Ready (used for auto-reset functionality)
  • Connection: Connect to the RESET pin of the MCU (optional, but recommended for auto-reset)
  • Bottom Row:
  • 1. CTS (Yellow)
  • Purpose: Clear to Send (flow control)
  • Connection: Typically left unconnected or connected to a pull-up resistor (not required for most applications)
  • 2. RTS (Orange)
  • Purpose: Request to Send (flow control)
  • Connection: Typically left unconnected or connected to a pull-down resistor (not required for most applications)
  • 3. VCC_IO (Red)
  • Purpose: Power supply for the MCU's I/O pins (3.3V or 5V)
  • Connection: Connect to the power source (e.g., a USB port or a battery) to power the MCU's I/O pins
  • 4. GND_IO (Black)
  • Purpose: Ground connection for the MCU's I/O pins
  • Connection: Connect to the ground pin of the MCU and any other ground points in the circuit
  • 5. NC (No Connection)
  • Purpose: Unused pin
  • Connection: Leave unconnected
  • Connection Guidelines:
  • When connecting the Witty Fox to an MCU, ensure the following:
  • Use a USB cable to connect the Witty Fox to a computer or a USB power source.
  • Connect the VCC pin to a 3.3V or 5V power source, depending on the MCU's requirements.
  • Connect the GND pin to the ground pin of the MCU and any other ground points in the circuit.
  • Connect the TXD pin to the RX pin of the MCU, and the RXD pin to the TX pin of the MCU.
  • If using auto-reset functionality, connect the DTR pin to the RESET pin of the MCU.
  • Leave the CTS and RTS pins unconnected or use pull-up/down resistors if required by the specific application.
  • Use the VCC_IO and GND_IO pins to power and ground the MCU's I/O pins, if necessary.
  • By following these guidelines, you can successfully connect the Witty Fox to your MCU and start programming and communicating with it.

Code Examples

Witty Fox - ESP Programmer | USB to TTL Converter
Overview
The Witty Fox is a versatile USB-to-TTL converter and ESP programmer that allows for easy programming and communication with ESP microcontrollers. This component is designed to provide a reliable and convenient way to upload firmware, debug, and interact with ESP-based projects.
Technical Specifications
USB Interface: USB 2.0, compatible with Windows, macOS, and Linux
 TTL Interface: 3.3V, 5V tolerant, supports baud rates up to 921600bps
 ESP Programming: Supports ESP8266 and ESP32 microcontrollers
  Dimensions: 45mm x 20mm x 10mm
Code Examples
### Example 1: Uploading Firmware to ESP8266 using Arduino IDE
In this example, we will demonstrate how to use the Witty Fox to upload a basic firmware to an ESP8266 module using the Arduino IDE.
Hardware Requirements
ESP8266 module (e.g., ESP-12E)
 Witty Fox - ESP Programmer | USB to TTL Converter
 USB cable
 Breadboard and jumper wires (for connecting the ESP8266 module to the Witty Fox)
Software Requirements
Arduino IDE (version 1.8 or later)
Code
```c
#include <WiFi.h>
void setup() {
  Serial.begin(115200);
  WiFi.begin("your_wifi_ssid", "your_wifi_password");
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}
void loop() {
  // Your code here
}
```
Steps
1. Connect the ESP8266 module to the Witty Fox, ensuring the VCC pin is connected to the 3.3V output and the GND pin is connected to the GND pin.
2. Open the Arduino IDE and select the "ESP8266 Boards" option under the "Tools" menu.
3. Choose the correct serial port associated with the Witty Fox (e.g., `/dev/ttyUSB0` on Linux or `COM3` on Windows).
4. Upload the code to the ESP8266 module using the "Upload" button or by pressing `Ctrl+U`.
5. Once the upload is complete, open the serial monitor to verify the connection and view the IP address assigned to the ESP8266 module.
### Example 2: Serial Communication with ESP32 using Python
In this example, we will demonstrate how to use the Witty Fox to establish serial communication with an ESP32 module using Python.
Hardware Requirements
ESP32 module (e.g., ESP32 DevKitC)
 Witty Fox - ESP Programmer | USB to TTL Converter
 USB cable
 Breadboard and jumper wires (for connecting the ESP32 module to the Witty Fox)
Software Requirements
Python 3.x
 PySerial library
Code
```python
import serial
# Open the serial port associated with the Witty Fox
ser = serial.Serial('COM3', 115200, timeout=1)
# Send a command to the ESP32 module
ser.write(b'hello, world!
')
# Read the response from the ESP32 module
response = ser.readline()
print(response.decode())
# Close the serial port
ser.close()
```
Steps
1. Connect the ESP32 module to the Witty Fox, ensuring the VCC pin is connected to the 3.3V output and the GND pin is connected to the GND pin.
2. Open a Python console or IDE and install the PySerial library if not already installed (`pip install pyserial`).
3. Import the `serial` module and open the serial port associated with the Witty Fox (e.g., `COM3` on Windows).
4. Send a command to the ESP32 module using the `write()` method.
5. Read the response from the ESP32 module using the `readline()` method and print it to the console.
6. Close the serial port using the `close()` method.
These examples demonstrate the versatility of the Witty Fox as a USB-to-TTL converter and ESP programmer. By following these examples, you can easily integrate the Witty Fox into your ESP-based projects and take advantage of its convenient programming and debugging capabilities.