Serial port automatic download

1. Product Introduction:
A product designed based on CH340C, which can be used to automatically download programs for ESP series chips or modules, and can also be used as a TTL serial port debugging tool.
 
2. Application scenarios
for firmware download and serial port debugging of ESP series circuits or modules
 
3. Product overview
The product supports Arduino IDE, RT-Thread Studio and Espressif FLASH_DOWNLOAD_TOOLS and other download software for one-click download, no wiring required, no need to press any button button. The WIFI module will automatically enter download mode.
 
4. Product parameters
Input interface: USB Type-C
Input voltage: DC5V/500mA
Output interface: 1x6P 2.54 curved pin header
Output voltage: DC 5V or 3.3V
PCB size: 20mm*40mm
PCB color: green
3D picture:
 
Real shot picture
 
 
 
 
5 ,Usage tutorial
VCC (power supply interface)---use the jump cap to select the output voltage 5v or 3.3v
GND---GND
TXD (signal transmission)---RXD (chip-side signal reception)
RXD (signal reception)---TXD (Chip-side signal transmission)
IO0---GPIO0 (download mode: externally pulled low; operating mode: floating or externally pulled high)
RST (reset)---RST (ESP8266)/EN (ESP32)
 
6. Remarks
This module is Pure hardware design, no need to burn programs and other operations, it can be used after the hardware is welded.
The CH340 driver is provided in the accessory information package.
The cost of this module is about 5 yuan.