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USB to UART ESP-01 CH340 Programmer

USB to UART ESP-01 CH340 Programmer USB to UART ESP-01 CH340 Programmer
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Operating Voltage

5V

UART Baud Rate

Up to 115200bps

USB Interface

Standard USB 2.0

Power Output

3.3V, 500mA

Dimensions

24mm x 18mm x 10mm

Weight

Approximately 10g

Applications

The USB to UART ESP-01 CH340 Programmer is an essential tool for developers, makers, and hobbyists working with ESP-01 modules in a variety of IoT applications, including

IoT Prototyping

Robotics

Home Automation

Wearable Devices

Industrial Automation

Conclusion

The USB to UART ESP-01 CH340 Programmer is a reliable, feature-rich, and compact programming tool designed specifically for use with ESP-01 modules. Its versatile functionality, ease of use, and compact design make it an ideal choice for IoT developers, makers, and hobbyists working on a wide range of projects.

Pin Configuration

  • USB to UART ESP-01 CH340 Programmer Pinout Explanation
  • The USB to UART ESP-01 CH340 Programmer is a versatile and compact tool for programming and communicating with microcontrollers, specifically designed for use with the ESP-01 module. This documentation provides a detailed explanation of each pin on the programmer, along with connection guidelines.
  • Pinout Structure:
  • The programmer has a total of 6 pins, which are arranged in two rows of 3 pins each. The pins are labeled as follows:
  • Top Row:
  • 1. VCC (3.3V Power Supply)
  • This pin provides a 3.3V power supply to the connected microcontroller or device.
  • Connect this pin to the VCC pin of your ESP-01 module or other device.
  • 2. TXD (Transmit Data)
  • This pin transmits data from the programmer to the connected microcontroller or device.
  • Connect this pin to the RX pin of your ESP-01 module or other device.
  • 3. GND (Ground)
  • This pin provides a grounding point for the programmer and connected devices.
  • Connect this pin to the GND pin of your ESP-01 module or other device.
  • Bottom Row:
  • 1. RXD (Receive Data)
  • This pin receives data from the connected microcontroller or device and transmits it to the programmer.
  • Connect this pin to the TX pin of your ESP-01 module or other device.
  • 2. DTR (Data Terminal Ready)
  • This pin is used to reset the connected microcontroller or device.
  • Connect this pin to the RST pin of your ESP-01 module or other device.
  • 3. GND (Ground)
  • This pin provides an additional grounding point for the programmer and connected devices.
  • Connect this pin to the GND pin of your ESP-01 module or other device.
  • Connection Guidelines:
  • When connecting the programmer to an ESP-01 module, follow these guidelines:
  • VCC to VCC
  • TXD to RX
  • GND to GND
  • RXD to TX
  • DTR to RST
  • GND to GND
  • Important Notes:
  • Ensure that the power supply voltage of the programmer (3.3V) matches the operating voltage of your ESP-01 module or other device.
  • Use a suitable USB cable to connect the programmer to your computer, and a set of jumper wires or a breadboard to connect the programmer to your ESP-01 module or other device.
  • Always double-check the pin connections before powering on the programmer and connected devices to avoid damage or electrical shock.

Code Examples

USB to UART ESP-01 CH340 Programmer Documentation
Overview
The USB to UART ESP-01 CH340 Programmer is a versatile USB-to-UART bridge converter that enables communication between a computer and microcontrollers, such as the ESP-01, using a USB interface. This programmer features a CH340 chip, which provides a reliable and stable serial communication interface.
Technical Specifications
Operating Voltage: 5V
 Baud Rate: 50bps to 2Mbps
 Data Bits: 5, 6, 7, or 8
 Stop Bits: 1, 1.5, or 2
 Parity: None, Odd, Even, Mark, or Space
 Flow Control: RTS/CTS, DSR/DTR, or None
 USB Interface: USB 1.1 and 2.0 compatible
Pinout
The USB to UART ESP-01 CH340 Programmer has a 6-pin header with the following pinout:
| Pin | Function |
| --- | --- |
| 1 | VCC (5V) |
| 2 | GND |
| 3 | TXD (Transmit) |
| 4 | RXD (Receive) |
| 5 | DTR (Data Terminal Ready) |
| 6 | RTS (Request to Send) |
Code Examples
### Example 1: Serial Communication with ESP-01 using Arduino IDE
In this example, we will use the USB to UART ESP-01 CH340 Programmer to communicate with an ESP-01 module using the Arduino IDE.
Hardware Connections
Connect the ESP-01 module to the USB programmer:
	+ ESP-01 VCC to Programmer VCC
	+ ESP-01 GND to Programmer GND
	+ ESP-01 TXD to Programmer RXD
	+ ESP-01 RXD to Programmer TXD
 Connect the USB programmer to a computer using a USB cable
Software Code
```c++
#include <SoftwareSerial.h>
// Define the serial communication pins
#define ESP_RX 2  // ESP-01 RXD pin connected to Programmer TXD
#define ESP_TX 3  // ESP-01 TXD pin connected to Programmer RXD
SoftwareSerial espSerial(ESP_RX, ESP_TX);
void setup() {
  // Initialize the serial communication
  espSerial.begin(9600);
}
void loop() {
  // Send a byte to the ESP-01
  espSerial.print("Hello, ESP-01!");
// Receive a byte from the ESP-01
  if (espSerial.available() > 0) {
    char c = espSerial.read();
    Serial.print(c);
  }
delay(1000);
}
```
### Example 2: UART Communication with a Microcontroller using Python
In this example, we will use the USB to UART ESP-01 CH340 Programmer to communicate with a microcontroller using Python.
Hardware Connections
Connect the microcontroller to the USB programmer:
	+ Microcontroller VCC to Programmer VCC
	+ Microcontroller GND to Programmer GND
	+ Microcontroller TXD to Programmer RXD
	+ Microcontroller RXD to Programmer TXD
 Connect the USB programmer to a computer using a USB cable
Software Code
```python
import serial
# Open the serial communication port
ser = serial.Serial('COM3', 9600, timeout=1)  # Replace COM3 with the actual port
while True:
    # Send a byte to the microcontroller
    ser.write(b'Hello, microcontroller!')
# Receive a byte from the microcontroller
    response = ser.readline().decode().strip()
    print(response)
# Close the serial communication port
    ser.close()
```
Note: Replace 'COM3' with the actual serial port assigned to the USB programmer by the operating system.
### Example 3: Flashing the ESP-01 Firmware using esptool
In this example, we will use the USB to UART ESP-01 CH340 Programmer to flash the ESP-01 firmware using the esptool.
Hardware Connections
Connect the ESP-01 module to the USB programmer:
	+ ESP-01 VCC to Programmer VCC
	+ ESP-01 GND to Programmer GND
	+ ESP-01 TXD to Programmer RXD
	+ ESP-01 RXD to Programmer TXD
 Connect the USB programmer to a computer using a USB cable
Software Code
```
esptool.py --port COM3 write_flash --flash_freq 40m --flash_mode dio 0x00000 firmware.bin
```
Note: Replace 'COM3' with the actual serial port assigned to the USB programmer by the operating system. Replace 'firmware.bin' with the actual firmware file.
By following these examples, you can utilize the USB to UART ESP-01 CH340 Programmer to establish reliable serial communication with various microcontrollers and devices.