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Questions tagged [ch340]

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CH340 is a USB bus conversion chip, it can realize USB to UART interface or USB to printer interface. In serial UART mode, CH340 provides common MODEM liaison signal, used to expand UART interface of computer or upgrade the common serial device to USB bus directly.

41 questions
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11 votes
6 answers
22k views

Reading http://playground.arduino.cc/Linux/Udev there appears to be a way to write out to a FTDI USB-Serial EEPROM to set a given SerialNumber, allowing you to identify a given nano/other arduino to ...
jvc26's user avatar
  • 265
10 votes
1 answer
46k views

I'm trying to upload some code to an non-arduino nano with the CH340G chip, and the avrdude refuses to let me upload. The error I'm getting is: Using Port : COM4 Using Programmer ...
Jacob's user avatar
  • 219
10 votes
4 answers
30k views

I just migrated to a new computer running on an M1 CPU (the new Apple Silicon, arm64 based). I've been searching for CH34x drivers for my TTGO-Lora32 board, but can't find any around, nor can I find ...
finitud's user avatar
  • 250
7 votes
2 answers
12k views

I am new to ESP8266. To ease out the task of programming esp8266, I bought this: ESP-01 ESP8266 Programmer CH340G Chip USB WiFi Wireless UART GPIO0 Adapter. Configured Arduino Interface to run AT ...
Arjun Sunil Kumar's user avatar
  • 209
4 votes
2 answers
18k views

I recently upgraded my MacBook Pro to Mojave. Now I'm not able to connect to my Arduino board with ch340g usb-to-serial chip. It is a Arduino board with AtMega 328 and ESP8266 integrated. I downloaded ...
Sven's user avatar
  • 221
3 votes
2 answers
29k views

I am working with an Arduino Uno clone that uses the CH340G USB to TTL converter in lieu of the 16U2 found on the Uno. I see that most tutorials suggest downloading the CH340G drivers from what they ...
dotancohen's user avatar
  • 199
3 votes
2 answers
3k views

I have a Arduino Nano clone working fine with the CH340 drivers. It has a CH340C on it. I made a custom PCB. CH340 chips are hard to come by these days, so I opted for the CH340K, From the datasheet, ...
EdHayes3's user avatar
  • 160
2 votes
5 answers
5k views

I have been given a board(Atmel ATmega328P-AU 1640) to program. I googled and found category of board Arduino Uno/ CH34x-based clone. But when I program an empty program: void setup() { // put ...
abhimanyuaryan's user avatar
  • 121
2 votes
2 answers
1k views

I've been trying to upload sketch to Arduino Nano clone (CH340G RS232 to USB converter). I have ArchLinux. My port is detected as /dev/ttyUSB0 (Official Arduino Uno is /dev/ttyACM0). After trying to ...
Jakub Janek's user avatar
  • 51
2 votes
1 answer
1k views

I'm trying to receive remote information with an IR receiver and this is my code: #include <IRremote.h> int RECV_PIN = 11; IRrecv irrecv(RECV_PIN); decode_results results; void setup() { ...
Ali Özgür's user avatar
  • 21
2 votes
1 answer
1k views

I own an several Elegoo Nanos and a Raspberry Pi. I would like to connect an Elegoo Nano to the Pi and upload nanpy onto the board and control it's GPIO pins. I have plugged the nano into the Pi and ...
apollowebdesigns's user avatar
  • 123
2 votes
3 answers
2k views

I am trying to upload a basic sketch to my unofficial Nano-like board and keep getting this error. I understand that it is a generic connection error between the Arduino and my PC, but can't figure ...
ThoseKind's user avatar
  • 121
2 votes
2 answers
2k views

I have worked with Arduino UNO but recently I bought a new Arduino Pro mini 5v 16M and a CH340G converter to work with. I have searched google to connect pins but I found examples that explains this ...
Eldar Zeynalov's user avatar
  • 125
2 votes
0 answers
607 views

For some weeks my latest dozen of Nano's isn't recognized any more by Win 10 computer: After two days of experiments I have suspicions: Is there any change in Win10 since all Arduinos now are only ...
Dieter's user avatar
  • 21
2 votes
0 answers
747 views

I have been building a project using an arduino nano clone. It uses the CH340 chip. It worked perfectly, and a week later it now doesnt. When I want to upload code in arduino IDE I get the error ...
Benjamin Broadbent's user avatar
  • 21

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