fish001

USB serial port automatic downloader

Overview

USB to TTL module made using CH340N. SOT-223 packaged voltage regulator has strong 3.3V power supply capability.

There is a MOS control negative electrode, which has an automatic power-off cold start function when downloading programs for STC microcontrollers or ESP series microcontrollers.

It is small in size and can be installed into a universal downloader aluminum case.

PCB front and back

After welding

Can weld simple bull

Can be put into aluminum case

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-08-05 12:28:25

zstack will use the principle of specifying short addresses
Sometimes we hope to manually specify the short address of a Zigbee node. However, this is not possible in theory for Zigbee 2006 and 2007, which use a tree-type address allocation scheme. If you spec
STM32 driver 2.4 inch TFT problem
I am working on a project recently, using a 2.4-inch TFT driven by ILI9325, but the screen is always white. When the initialization program is executed single-step, there is no screen distortion. Does
The learning page cannot be entered, please check it with relevant personnel
After entering, there is an ATEL registration interface? What is going on?
MCU Application Programming Skills (FAQ) 5
24. Some people think that MCU will be replaced by embedded systems with ARM and other series structures. How long will the life of MCU be? Answer: Because of the difference in functional structure an
Vote for a gift~ The 25th round of monthly awards, come and vote for the good articles and replies you think
Voting~ The 25th round of the monthly prize selection has begun. Come and vote for the good articles and replies in your eyes~~ [b][color=#0000ff]Voting rules: [/color][/b] Netizens post replies to vo
Microcontroller related fields
I have been studying MCU for two years and working for one year, but I have not been engaged in the MCU industry. So far, I still don’t know in which fields and what things MCU is really used for. The

Datasheet More

Circuits More