Hi! I'm new to arduino and need your help to get started. I bought this board that comes with serial usb to ttl converter. I'm wondering how to connect the arduino to the ttl converter and upload sketch. I have red the get started page but the pins of my arduino are different. Here are pics:Thanks in advance!
You just need to connect the 6 pins on the adapter to the 6 bent pins on the top of the Pro Mini(commonly called an FTDI header) using the cables that came with them. With the
With the FTDI header on the Pro Mini pointing up, Match the pins on the Pro Mini with the labels on the CH340 board as follows, from left to right:
1 - DTR
2(TX) - RXD
3(RX) - TXD
4(VCC) - VCC
5(GND) - CTS
6 - GND
You need to connect RX on the board to the TX on the adapter and vice versa because RX stands for receive and TX stands for transmit. The pins should all line up correctly in order, you just need to make sure not to reverse the whole thing.
You may find that you need to install a driver for the CH340 on the adapter to work. You can get it at:
pick the right version for your operating system. If you're using MacOS Sierra you might need a modified driver because last I heard the official driver didn't support it but that may have changed since that time.