We’re rewarding the question askers & reputations are being recalculated! Read more.

Questions tagged [atmega16u2]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
0answers
16 views

Arduino Mega's Port Is Recognized Well, But No Rx Tx LED Action?

I have an Arduino Mega 2560 that uses Atmega16u2 as USB to serial interface. the problem is that the serial port is able to be recognized well (as ID 2341:0042 Arduino SA Mega 2560 R3 (CDC ACM) )...in ...
0
votes
0answers
30 views

How can I tell if sketch is really uploaded

I am trying to figure out how to tell if my sketch upload was really successful. My Arduino UNO with AVR ISP example loaded and a Chinese AVR ISP programmer board inserted tells me that my sketch was ...
1
vote
1answer
454 views

Reprogram Atmega 16u2 on Arduino Mega with Arduino IDE?

I had an Arduino mega 2560, suddenly Arduino didn't recognize my computer and I thought the problem is about Atmega 16u2 and I decided to copy hex file from another Arduino Atmega 16u2 and paste to ...
1
vote
1answer
316 views

Uno pin connection: Atmega16u2 & ATmega328P

On my Uno, I set up the HoodLoader2 (link below) so I can program both the ATMega16u2 and the ATmega328P. I can communicate between the two using the serial port. However, I need the serial port to ...
0
votes
0answers
416 views

Arduino Uno R3 (with Atmega 16U2) and macOS 10.11 not working

So, I have the newest Arduino IDE (1.8.5) installed and the newest release of Arduino AVR Boards 1.6.21. My OS: macOS 10.11.6. Usually I only use Nano's china clones with an CH340 USB-Serial chip, I ...
0
votes
1answer
172 views

How reliable is Arduino Uno Serial, via USB (ATmega16U2), CRC needed?

I have a question about the reliability of Serial communication, i.e. in particular if I need to implement CRC/checksum/ECC because of bit transmission errors? I I however think there is no general ...
0
votes
1answer
103 views

Can the arduino be recognized if the usb chip is broken?

My question might seem one of the million questions out there "Can't upload to arduino uno and receive error avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x01" but as I probably read ...
0
votes
2answers
146 views

Accessing digital pins from the Atmega 16u2 on the Uno

I'm running a custom firmware on the ATmega16U2 (Switch-Fightstick). Is it possible to access the digital pins of the UNO from the ATmega16U2?
5
votes
2answers
1k views

Arduino Uno as USB to Serial converter (bypass 328p)

I'm trying out computer to computer serial communication using 2 Arduino Unos (both connected to different computers). Right now, I use the Software Serial library, which redirects data from the ...
1
vote
2answers
165 views

Temperature sensor and LCD

I have a project which uses a DS18B20 temperature sensor and an LCD with an I2C interface on it. I have connected the sensor to my micro-controller (the DS18B20 has a 12-bit digital output) to the ...
1
vote
1answer
846 views

Enabling keyboard feature on Arduino with CH340G

I've seen here that it is possible to enable keyboard feature on Arduino Uno so it can emulate a keyboard (send keystrokes to computer) like the Leonardo. They do it by updating ATmega16U2 firmware. ...
-1
votes
1answer
162 views

My Arduino UNO turns LED ON forever when I connect it to my Laptop

My Arduino UNO Board keeps the LED light turned on forever whenever I connect it to my PC. And, when I try to upload even a sample sketch, it says avrdude: stk500_recv(): programmer is not responding. ...
1
vote
0answers
581 views

Arduino Uno sometimes cannot connect to the computer [closed]

Last month, I bought an Arduino Uno R3 board (believed to be a clone). In the first few week, it seem to be working fine. However, in this week, it became very strange. What it basically does, it ...
0
votes
2answers
1k views

Simple network protocol to communicate between N slave arduino and 1 central arduino? [closed]

i am looking to communicate text ( 40 char for each message ) between N arduino and a central one ( Communication is one way slaves to Master).I am looking for wire communication with 1 to 5 m ...
2
votes
1answer
502 views

Resetting 16U2 Processor on Uno (R3)

This question got me thinking, the OP was wondering about how to "bring back" Leonardo boards connected to a Raspberry Pi via USB. The Leonardos would occasionally drop off line and could not be ...