Electronic Basics #6: Standalone Arduino Circuit

always wonderful !

Voltaje from usb

Oh wait I found it not put the right components into going slow motion and there's some wrong pasta's done it I'll change that

Mine goods up slower than normal and the twilight begin to do the weather alert sound but it's just baking load of beeping sex that's kind of annoying

What is problem in my Atmega328P-U microcontroller. I am using external 16mhz crystal . I am using this setting 0xFF, 0xDE, 0xFD, 0xC0 and write by avrdude.
my project stuck or hang after some hour...
how to solve my problem...plz tell me

ICSP is just as simple. Requires 6 wires - 4 to MISO/MOSI/SCK/RESET and 1 to VCC and 1 to GND. Yes you need a +5V pullup on the reset line but there are tons of simple diagrams in Google Images.

great project :)

all your video are great, thank you for taking the time to put together these demonstrations

I didn't have an oscillator on hand, but puttting both chips od a breadboard and connecting the oscillator pins from the socket in the Arduino to both in parallel worked.

Other videos/articles make this look so difficult, but as usual, GreatScott! made a good quality, simple, easy to understand video

I used the first method to upload simple blink sketch yet nothing work. I also add reset push button to ground and my atmega328 doesnt do anything. What can be the problem?

Meanwhile Arduino Nano and Pro Mini: am I a joke to you

Danke, das finde ich richtig geil :)

Scott, I've recently learned that is possible also to use an Arduino Nano as an ICSP to program a bare Atmega328P. Just upload Arduino ISP sketch on Arduino Nano, (you can find it in the provided examples), change line 73 to use pin 6 instead of 10 as reset line in case of Arduino Nano. Then connect Arduino's usual ISP pins: 6, 11, 12 and 13 to Atmega328's reset, MOSI, MISO and SCK, in order, and, of course, gnd and 5V. Then you can upload you code to Atmega328 from menu "sketch/upload through a programmer". NOTE: Atmega328 need to have a bootloader loaded, already. Ciao!

Will the atmega328p itself work like an Arduino? Digital / PWM pins and analog pins will work normally?

Would it be possible to these on stm32 ?

I like the humor in this

Thank you for this excellent presentation.
This video is one o f the best.Looking forward to more.

Wonderfull explaned

Where can I finde how big capacitance is need for the clock crystal?

I am a bit too late :(.
Hope you reply....
Can I control a relay with this standalone microcontroller?

I have 328p-u so I'm facing 1e 95 0f problem.while uploading (without crystel) ....
.
Can you help me? .
.

.
(i ordered crystal for now.... )
.
What is the problem plese explain it..
And tell us if any solution available

What exectly 22pf does??

And can i use another value.
If no why??
.
If yes what is the range?

I have a 20x4 LCD with I2C (PCF8574) in my project which works 100% fine when setup with the ATMega328 on the Arduino UNO, but when set on a PCB I made with the same ATMega328 (without the Arduino interface) it only shows white squares.

This is the data I believe to be talkpoints:

• The cables used are 10cm long breadboard jumper wires
• SCL, SDA, VCC and GND connections from the ATmega328 to the LCD are OK (no mixed connections)
• I tried with and without 4.7kOhm resistors from SCL to VCC, and from SDA to and got the same null result with both setups
• I have a LM7805 with decoupling capacitors that feeds the IC (power source is a switching 12V 5A), and it indeed recieves 5V.....

• Please can you assist in finding the finding solution.

when one like is not enough!!!

can anyone provide me a link to the first part of the video

Why not use a pro mini ?

You can program 328p using Arduino and without programmer device, thank you

good old times when his videos were useful 😌

What about pullup resistors, are those on the board, or part of the chip itself?

That's awesome!

Nice video! Thank you for the information! I like that the video is on point, short and comprehensive! :D

All these tutorials mess up the crystal capacitor values, typically they use 20pf caps for a crystal with a load capacitance of 20pf, WRONG, there is a formula to work out the correct cap values. To put it as simple as possible, you are using 2 caps in series that halves the total, also the crystal with pads and tracks has a few pf built in capacitance, so it becomes 40pf minus the built in capacitance will give 36pf as the value for the two load capacitors for a 20pf crystal !

How do we know what external components we need and how to wire them up for a specific AVR Microcontroller? I couldn't find a diagram with the crystal / capacitors in the ATmega328 datasheet, so how can we figure out how we should set it up with different microcontrollers?

Or use an arduino nano

Work done above is absolutely Great but I am looking to apply whole process on atmega2560
Does it still the same or something additional is required?

Is it possible to make standalone Atmega2560?

1337

throw away the existin usb to what ever Arduino, and buy a cheaper one...

Yeah.Either that,or you could use Nano. 😉 P.S.:Love your channel.

Nice video length!

Hi to which pins do I need to connect serial clock and serial data for I2C ?
There are special pins for is on Arduino boards.
Thanks

I got a cheap ISP programmer and use it with avrdude from Linux. Doesn't seem very advanced.

You are really great the greatscoot