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15 votes
Accepted

FTDI Breakout with additional ISP connector

There's a thread about that on the Arduino Forum - someone had a similar question. I found a schematic (below) which is not for that board, however the header pins are labelled the same as you found, ...
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7 votes
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Purpose of USB (FTDI) and ICSP connectors

The ICSP is used for 'bare metal' programming. This what you'd use if you wanted to replace or remove the bootloader, change the clock oscillator settings, or program the device as a bare 328. The ...
  • 404
4 votes

avrdude: stk500_recv(): programmer is not responding

Is it this? "To upload a new sketch to the Arduino Mini, you need to press the reset button on the board immediately before pressing the upload button in the Arduino environment." https://www....
4 votes

Arduino not detected On El Capitan Public Beta 6

As noted elsewhere, there have been plenty of problems with the CH340 driver and the OSX El Capitan betas, culminating into the driver flat out not working in the latest beta. This is either a bug ...
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4 votes
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Regarding the USB port, what is the difference between Uno/Mega and the older boards?

The older Arduino boards used an FTDI FT232R chip to handle the USB port. This chip is a special purpose, USB to serial UART interface. In the current Arduino boards, the USB to serial conversion is ...
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3 votes
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avrdude: stk500_recv(): programmer is not responding

Is it this? "To upload a new sketch to the Arduino Mini, you need to press the reset button >on the board immediately before pressing the upload button in the Arduino >environment." https://...
3 votes

Arduino Nano (clone) not recognized

It sounds like a blown protection diode MBR0520 in between USB and +5V of the nano.
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3 votes
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Arduino(s) not resetting on Serial connection lost / re-established - why?

What you have done is to disable the "HUPCL" signal that is sent when the port is opened/closed. You can turn the signal back on with: $ stty -F /dev/ttyACM3 hupcl And you can turn it off again ...
  • 103k
3 votes

Upgrade ESP-01 firmware on MacOS

Here is the step-by-step on upgrade the ESP-01 AT Command firmware (for running on macOS). Wiring For flashing the ESP-01 firmware, you need to have a USB-TTL adaptor as a programmer. +----------------...
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3 votes

Using Arduino UNO as FTDI

https://youtu.be/EoHD0m3uUhA. Ig this should do it. There are many more tutorials on YouTube to achieve this.
2 votes

Programming ATmega2560 processor with FTDI instead of ATmega32

In fact, the basic Arduino Mega (with the ATmega 1280) utilizes an FT232RL, so yes, it will work if you connect it correctly. It is only the newer Mega2560 (along with the similar-generation Uno, etc)...
2 votes
Accepted

Simulate a FTDI using an Arduino UNO

The simplest way is to unplug the ATMega328P from the board (or otherwise disable it) and just use the ATMega16U2 by connecting the ESP8266 to pins 0 and 1 of the Uno. No programming required at all ...
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2 votes
Accepted

Find number of RX and TX-pin on ArduiMu

You can use FTDI cable with your board on the last row of pads as you have highlighted. Unfortunately your board designers do not publish a pdf version of the schematic so I opened the provided ...
2 votes

How to use FTDI to program Lilypad Arduino?

"Access is denied" this looks like you should at least restart your computer after you installed the FTDI driver if you have not already. Run Arduino IDE as Administrator and also make sure you are ...
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2 votes
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Reprogram CH341A chips VID PID etc

Here's the guide I used to correct the problem :- HOW TO FIX THE USB-FTDI PROBLEM (on arduino nano, usb ttl, ft232, ...) There must have been a production of faulty ftdi drivers (version 2.12.0.0 ...
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2 votes

Reprogram CH341A chips VID PID etc

What you call a “virus” is, more properly, malware. FTDI's driver that bricked fake FT232R chips was withdrawn from Windows Update in October of 2014. (See, for example, discussion at epanorama.net, ...
2 votes
Accepted

Arduino Pro Mini

Check for physical damage! Solder connection of the programming pins to the board was damaged in my case. Resoldering helped!
2 votes
Accepted

what ftdi windows driver for arduino nano

The Official Arduino Nano has an FTDI FT232RL. You want to use the Virtual Com Port(VCP) Driver so the FTDI device appears as a COM port under windows. See the getting started guide for details.
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2 votes
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I can't get code transferred to my Arduino Mini Pro

Things have changed in the three years since you last used your FTDI board. Most importantly avrdude has changed. You will most likely find that you can program your boards perfectly fine using ...
  • 103k
2 votes
Accepted

Connect a USB slave into Arduino using FTDI

No, that is completely wrong. In USB you have hosts and devices. A device has to connect to a host. Your FT232 is a device. The barcode scanner is a device. Both of them need to be connected to a ...
  • 103k
2 votes
Accepted

Can Arduino be used as an FDTI Programmer?

Yes. Tie the reset pin on the ISP connector low to keep the ATmega328P in reset, then you can connect pins 0 and 1 to the ESP module to communicate using the Uno's USB-UART bridge. Since the pins are ...
2 votes
Accepted

How do I reset an ESP8266 with an FTDI and no reset button?

Pull the reset pin up by connecting it to 3.3v with a 10k ohm resistor, then to reset the ESP you temporarily ground the pin, bringing it down to 0v/GND. I'd recommend putting in a button for that :)
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2 votes

Arduino Pro Mini Serial Monitor garbage

Flip the RX and TX wires of the HC06. This is because this statement : SoftwareSerial BT(10, 11); actually means SoftwareSerial BT(RXpin, TXpin);. Considering this, 10 is your Rx and 11 is your Tx. In ...
  • 2,803
2 votes

Arduino Pro Mini Serial Monitor garbage

BLK GND GND CTS That looks backwards to me. Connect GND to GND and CTS to BLK. The bluetooth module operates at a predefined baud rate. You need to ensure that your Arduino communicates at that ...
  • 103k
2 votes

Arduino Pro Mini Serial Monitor garbage

I had the same issue. The problem was solved in an other forum: https://forum.arduino.cc/index.php?topic=434623.0 I copy the solution here: It appears that in fact your board is not running at 8MHz, ...
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2 votes

avrdude: stk500_recv(): programmer is not responding - OSX10.11

Has this ever worked? Can you use avrdude and hit the target? There is a terminal mode in avrdude you can also use. At least this would help you determine what is working. Sounds like a ...
2 votes

Arduino Uno unable to detect usb port on Mac OS Sierra 10.12.5

I installed the CH340 Driver and the board now shows the USB serial as port option: https://github.com/adrianmihalko/ch340g-ch34g-ch34x-mac-os-x-driver
2 votes

Unable to load programs onto Arduino Pro Mini Using FTDI?

Same problem faced. Try out many times with proper connection but no success. After that, I found one unique and simple solution. I use Arduino Uno instead of FTDI. Follow below step, your problem ...
  • 1,468
2 votes
Accepted

FT232RL Chip pinout to flash Arduino Pro Mini

This is the standard FTDI Basic connections. CTS is an input to the module and is typically just connected to Gnd as seen on the right side here from the Arduino Promini schematic (so the FT232 is ...
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