Raspberry Pi: How to Connect Using Serial

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Connect to a headless Raspberry Pi over USB without a network or extra keyboard/monitor using only an Arduino Micro.

#RaspberryPi #Serial #Arduino

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Thank you, this is JUST the tutorial I needed. Hardware is so sick, what the hell have I been doing all these years?!

mstax-plt

Thanks DB! Just the ticket for minimalist projects using the pi zero. Looking forward to more of your interesting vids.

freeelectron

Beware - RPI pins are 3.3V and are not 5V tolerant. Thus in case of connecting Arduino like shown in the video - either use 3.3V Arduino models, use level shifter in case of 5V Arduino (voltage divider on RPIs Rx would do the job, too), or just use USB to UART thingy (mentioned in the video) with the ability to set (OOB, jumper, solder bridge) signal level to 3.3V.

krokotube

Thank you! This video has been so useful! You're a nice person, thank you for sharing. I've used an FTDI board, very cheap, I got one I've bought for error some year ago. Also, on Linux, I've used gtkterm to connect to the USB to serial/TTL adapter.

fabriziodutto

It was harder than expected to find this info, thanks!

warrenrexroad

Nice video. I like your sense of humour. Doesn't the Raspberry Pi need a level converter to work with the Arduino 5v logic?

timothy

all the videos I saw, your video was the legit, it helped a lots.

kayvendelatado

Thanks Man, just realized I have an ESP8266 I can use to connect to my PI.

patrickm

The pro micro's Mega32U4 can be used as a usb to ttl serial adapter. Other Arduinos have a usb to TTL chip on board. The pro micro uses 3.3 volts like the Raspy. But I would still solder a 1k resistor or larger into each data line.

The advantage is that you can still access a Linux terminal on the PI without a network connection, monitor or keyboard.

jensschroder

This is really cool :) Thankyou for video. Please confirm is I got this right guys,
to connect to a IoT device using serial connect all we need is
1. A targe device with 1 UART interface enabled
2. Intermediate device to forward UART traffic via USB to a laptop
3. Laptop equipped with putty/picocom

avimehenwal

Thank you so much for this tutorial !! I have been trying to open a shell window using an arduino uno to interface the UART but since this board only has one hardware serial I had to use the SoftwareSerial lib, and I'm not sure why the output from the pi gets (really) gibberish. I've configured my baudrate to 115200 since I couldn't change the default baudrate on my pi's UART. Any advice on how to solve this problem ?

oscartesniere

Thank you! I was looking for this to have easy access to my diy DAC dam1021.

alap

I'm looking for a way to take in serial data into the Pi, capture a string & process it with some results. (activate a couple GPIO pins, etc.) I guess python would be the easiest for the Pi. Any suggestions?

SuperHaunts

hello, can i add 5 volt pin so i can power up raspberry pi from arduino? im worried about this

yooscripts

Thanks for the awesome tutorial! I think you also can use onboard FTDI chip bypassing the atmega chip. In that case you should upload a blank sketch to Arduino otherwise it may mess up ongoing communication of PC and Raspberry Pi. All other steps should be same as this tutorial.

yasindu