Linked Questions

2 votes
3 answers
2k views

Nano-like Board - Programmer Not Responding [duplicate]

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
5 votes
2 answers
6k views

Having difficulty uploading sketch to an Arduino Pro Mini

Having developed and tested a project using an Arduino Uno, I would now like to upload it to an Arduino Pro Mini (5V, 328, 16MHz) for semi-permanent, long-term use, but I can't get any sign of life ...
Tim Morley's user avatar
2 votes
2 answers
290 views

No usb serial on Mac

I've been using my Arduino UNO without a hith for a few days now, but suddenly I can't program it anymore. When I try to programm my Arduino on Mac, I get the following Error: avrdude: stk500_recv():...
Stein's user avatar
  • 141
1 vote
2 answers
318 views

Unable to Upload

Not able to upload sketches to standalone arduino on breadboard (with Atmega328 bootloaded with blink LED program). Searched on the internet but there is no solution. Help ? error : avrdude: ...
Ayush Shrivastava's user avatar
13 votes
1 answer
36k views

Arduino Nano ATmega328P bootloader difference

There are two ATmega328P bootloaders, old and current. What is the difference between these bootloaders? I'm aware that Nanos sold by Arduino use the new bootloaders but I haven't been able to find ...
Claus's user avatar
  • 233
10 votes
1 answer
41k views

CH340 Nano avrdude: stk500_getsync() not in sync resp=0xa4

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
1 vote
1 answer
3k views

Can the Arduino (Nano) bootloader be updated via itself and the Arduino IDE or is an ISP required?

I ran into the following error with a recent Arduino IDE version (1.8.9) when trying to upload to an "Arduino Nano" clone (ATmega328P): avrdude: stk500_recv(): programmer is not responding avrdude: ...
handle's user avatar
  • 141
0 votes
1 answer
731 views

Problem Uploading to the Arduino Nano board [duplicate]

]2I am using an Arduino Nano board. It has an ATmega 328P processor. For running the codes I use Arduino 1.8.6 Software. The issue is that when I am uploading my sketch to the board it shows me the ...
huzefa.s's user avatar
0 votes
1 answer
1k views

Problem Uploading to arduino nano (atmega 328p) [duplicate]

I am using Arduino 1.8.1 and arduino nano (mega 328p) and ftdi driver. In device manager it seems no problem, because it is detected as COM99. But it says a problem while uploading to the board as ...
Elfridus's user avatar