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Unknown User•3y ago
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@Vihaan I created this thread to continue troubleshooting your Arduino Pro Mini.
On Amazon, the seller says the board is 5v 16mhz but some reviews state that the customer received 3.3v 8mhz.
One customer states the following method of determining which you have:
Do you have a programmer or are you using an Arduino board to burn a bootloader?
Unknown User•3y ago
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Ok, so in the Arduino IDE, you have selected Atmega 328 (5v, 16Mhz) under Tools -> Processor?
Unknown User•3y ago
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Ok, i'm not sure what else you can do in regard to uploading firmware using the ftdi adapter.
You could try programming the board using ICSP if you have a programmer or another Arduino board.
Unknown User•3y ago
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Ok, here is a guide if you need it:
https://yaaaas.wordpress.com/2018/03/14/how-to-program-an-arduino-mini-pro-with-isp-programming/
did you already cover the possibility it's a "power only" USB cable?
Vihaan reports that a loopback test on the ftdi adapter was successful.
When you get around to it, let us know the results so I can mark this thread as "solved".
If ISP is working, you could always try burning a bootloader if you really want to use the ftdi adapter.