CH340 programmer for ESP-01 ESP01s UART converter adapter RESET button

Programmer adapter converter for ESP-01 UART CH340 to ESP8266

The converter allows direct connection of the ESP-01 or ESP8266 module to a computer. Thanks to the CH340 chip, the module provides stable serial communication with the microcontroller. The design protects the USB port from current spikes that may occur when establishing WiFi connections.

The latest revision of the programmer supports automatic firmware upload to ESP-01s modules. Unlike older versions, the device does not require hardware modifications or soldering additional components. The module is equipped with an integrated RESET button, eliminating the need to repeatedly disconnect it from the USB port to restart.

The CH340 chip also allows programming other microcontrollers. The board exposes male pins that enable easy connection of external tools, such as logic analyzers.

Key technical specifications

• Chip used: CH340
• Supply voltage: 5V (USB connector)
• Socket: 2x4 pin, fully compatible with ESP-01 and ESP-01s modules
• Interface: USB Type-A port
• Power: Built-in voltage regulator and filtering capacitor
• Control: Integrated RESET button
• Connections: Male and female headers on the board
• Ready to use: No hardware modifications required

Example applications

• Programming and flashing ESP-01 and ESP-01s modules
• UART serial communication between a computer and microcontrollers
• Testing and debugging projects based on ESP8266 chips
• Monitoring data transmission using a logic analyzer
• Prototyping IoT (Internet of Things) systems

Benefits

• Safety: USB port protection against sudden current draw spikes
• Ease of use: Built-in RESET button makes restarting the connected module easier
• Automation: Trouble-free firmware upload to ESP-01s modules without extra modifications
• Versatility: Ability to use the CH340 chip to program other devices
• Compactness: All essential components and connectors integrated in one adapter