Unanswered Questions
110 questions with no upvoted or accepted answers
4
votes
0
answers
175
views
Can d2xx connect to an arduino mega 250?
I am trying to replace a device which used a FTDI chip (http://www.ftdichip.com/Drivers/D2XX.htm) to get USB to serial. I need some more code on the chip, so I want to use an arduino mega 2560 instead....
- 41
3
votes
1
answer
151
views
Arduino R3 Uno Clone - When barrel plug connected there is 5V on USB. Why?
I have been using Arudino Megas for some projects and never had this problem.
Simply enough - I am powering arduino with 12V in via barrel and take power out via VIN to 12V low very low current small ...
CommunityBot
- 1
3
votes
0
answers
713
views
Getting atsam3x8e (Arduino Due) to work
I decided to make a pcb based on the atsam3x8e (microcontroller used in Arduino Due). For the design I copied most of the layout that I found on this site and looked at the official Arduino Due ...
3
votes
0
answers
400
views
Software flashing attiny167 from RPi with avrdude
I am trying to flash a program onto an attiny167
(already bootloaded with the micronucleus bootloader)
with a Raspberry Pi via avrdude and USB.
Background
I have 50 Raspberry Pi 3B's connected to an ...
CommunityBot
- 1
3
votes
0
answers
328
views
Arduino IDE programs Leonardo but cannot open serial terminal
I'm using Arduino: 1.6.7 (Mac OS X 10.11.3), Board: "Arduino Leonardo".
When I try to program my code, it works without problems.
When I want to open the built-in Serial Monitor or Serial Plotter, ...
- 2,522
3
votes
0
answers
2k
views
Using USB on a Leonardo to receive data from PC
I am new to the Leonardo, having only used a duemilanove before, and I am interested in using it's USB capabilities for a project.
Basically I need it to be an input and output device, communicating ...
- 131
2
votes
1
answer
61
views
Is it possible to use an already working Barebones (328P) via FTDI to load a bootloader onto another 328P?
When testing / developing a proto type using a barebones board with 328P, I usually add a Serial to TTL adapter, which then allows me to modify and upload code as well as being able to the use Serial ...
CommunityBot
- 1
2
votes
0
answers
404
views
Implementing very slow external drive using ESP32 and TinyUSB
I want to implement a simple external drive with ESP32-S3 that would act like a normal USB enabled flash drive when connected to a computer.
The actual storage of the data is done mechanically (for ...
2
votes
0
answers
41
views
Can the USB interface IC be identified via code alone?
I know that the master controller can be found in verbose upload output in IDE, but I have a few boards from different manufacturers and my smartphone camera is apparently insufficient to take a ...
2
votes
0
answers
718
views
Attiny85 uploading error
I am getting an error while trying to upload programs to the Attiny85 through a USBTinyISP programmer, found here. Unfortunately, it isn't working. Following this tutorial for connecting the board and ...
- 21
2
votes
0
answers
51
views
Low power USB C power supply
I am searching for a tiny board to that accepts an usb-c cable and outputs 5v.
To my understanding, for the few hundred milliamps two 5k1 resistors on the board would suffice. PD is not needed.
I ...
- 41
2
votes
0
answers
236
views
arduino usb host shield hard drive
Greeting to all,
i have a mega2560( NOT AN ADK ), and usb host shield 2.0, and the following
a) 1 pendrive( 8GB) formatted as fat32
b) 1 300GB usb hard drive formatted as fat32
c) 1 1TB usb hard drive ...
- 21
2
votes
0
answers
98
views
How to access bootloader recovery mode (like the Micro) or equivalent on the Due?
I would eventually like to use a Due as a custom USB device PC-side (through programming port) while using it as a USB Host on the native port.
Adding the programming port endpoints (perhaps willingly ...
- 135
2
votes
0
answers
1k
views
Connect old USB webcam to USB Host Shield 2.0 Arduino Uno / Mega
Does anybody know how to interface an old USB webcam with the USB Host Shield 2.0 connected to an Arduino (Uno or Mega 2560 or other models - excluding Yun).
I've got the USB Host Shield set up ...
Alex
2
votes
0
answers
1k
views
Cannot upload to otherwise working bootloaded ATmega328P via RS232: "programmer is not responding"
I have an ATmega328P on a breadboard with the following circuitry around it:
The ISP is a Tiny AVR Programmer. The RS232 to USB converter is this thing.
Following is the test program I use:
void ...
- 2,522