Wishiot ESP-01S USB to ESP-01 Adapter Programmer Instruction Manual

1. Introduction

This manual provides comprehensive instructions for the Wishiot ESP-01S USB to ESP-01 Adapter Programmer. This device simplifies the process of programming and debugging ESP-01 and ESP-01S Wi-Fi modules, featuring a convenient toggle switch for selecting between UART and programming modes. It integrates a CH340G USB to serial TTL chip, ensuring compatibility with standard development environments.

2. Product Overview

The Wishiot ESP-01S Adapter Programmer is designed for ease of use, allowing direct connection of ESP-01/ESP-01S modules. Key features include:

• Integrated CH340G Chip: Provides stable USB to serial TTL communication.
• Mode Toggle Switch: Easily switch between UART mode for serial debugging and PROG mode for firmware programming.
• Direct ESP-01/ESP-01S Connection: Modules can be directly plugged into the yellow pin header.
• Standard Baud Rate: Operates at 115200 baud rate.

Figure 2.1: Wishiot ESP-01S USB to ESP-01 Adapter Programmer with an ESP-01S module. Note that the ESP-01S module is not included with the programmer.

Figure 2.2: Detailed view of the programmer showing the UART/PROG toggle switch. The switch allows selection of the working mode: UART for serial TTL debugging via AT commands, and PROG for firmware programming of the ESP8266.

3. Setup Instructions

1. Install CH340G Driver: Before using the adapter, ensure the CH340G USB to serial TTL chip driver is installed on your computer. Drivers are typically available from the chip manufacturer's website or the product support page.
2. Connect ESP-01S Module: Carefully plug your ESP-01 or ESP-01S Wi-Fi module into the yellow pin header on the adapter. Ensure correct orientation, aligning the pins of the module with the header.
3. Select Operating Mode: Use the on-board toggle switch to select the desired mode:
   • Switch to the UART side for serial TTL debugging using AT commands.
   • Switch to the PROG side for firmware programming of the ESP8266.
4. Connect to PC: Plug the USB end of the adapter into an available USB port on your computer.

4. Operating Instructions

4.1. Firmware Programming (PROG Mode)

To program new firmware onto your ESP-01S module:

1. Ensure the ESP-01S module is correctly installed on the adapter.
2. Set the toggle switch on the adapter to the PROG position.
3. Connect the adapter to your PC's USB port.
4. Open your preferred ESP8266 flashing tool (e.g., ESP Flash Download Tools, Arduino IDE).
5. Select the correct COM port assigned to the CH340G chip.
6. Load your firmware (.bin) file into the flashing tool.
7. Initiate the flashing process. The tool will typically indicate completion.
8. Once flashing is complete, disconnect the adapter from the PC.
9. Switch the toggle to UART mode for normal operation or debugging.
10. Reconnect the adapter to the PC.

Figure 4.1: Example instructions for flashing and programming an ESP-01S module using the Thonny IDE, detailing steps for both flashing firmware and programming applications.

4.2. Serial Debugging (UART Mode)

For serial communication and debugging with your ESP-01S module:

1. Ensure the ESP-01S module is correctly installed on the adapter.
2. Set the toggle switch on the adapter to the UART position.
3. Connect the adapter to your PC's USB port.
4. Open a serial terminal program (e.g., Arduino Serial Monitor, PuTTY).
5. Configure the serial terminal with the correct COM port and a baud rate of 115200.
6. You can now send AT commands or view serial output from your ESP-01S module.

5. Maintenance

The Wishiot ESP-01S Adapter Programmer requires minimal maintenance.

• Keep the device clean and free from dust and moisture.
• Store in a dry environment when not in use.
• Avoid exposing the device to extreme temperatures or direct sunlight.
• Handle with care to prevent damage to the pins and electronic components.

6. Troubleshooting

• Device Not Recognized:
  • Ensure the CH340G driver is correctly installed. You may need to restart your computer after installation.
  • Try a different USB port on your computer.
  • Verify the USB cable is functioning correctly.
• Programming Failure:
  • Confirm the toggle switch is set to the PROG position.
  • Check that the ESP-01S module is securely seated in the adapter.
  • Verify the correct COM port and baud rate (115200) are selected in your flashing software.
  • Ensure the firmware file is valid and compatible with your ESP-01S module.
• No Serial Output in UART Mode:
  • Confirm the toggle switch is set to the UART position.
  • Verify the correct COM port and baud rate (115200) are selected in your serial terminal.
  • Ensure your ESP-01S module is powered and running code that produces serial output.

7. Specifications

8. Warranty and Support

For warranty information and technical support, please refer to the official Wishiot website or contact your retailer. Keep your purchase receipt for any warranty claims.