Arduino 1.0.3 - Arduino Uno and ATTiny85 problems (video included)

Hi there! I'm having some troubles with my attiny85 and arduino uno. I'm using this for the attiny85 core Google Code Archive - Long-term storage for Google Code Project Hosting.

I've already uploaded the Arduino ISP sketch to the arduino Uno with no problems. After doing that the Board is defined as Attiny85 internal 8 MHz clock, programmer is Arduino as ISP.

The blink sketch is loaded and the led port is defined as 1. On the attiny the led is connected to port 0. (I'm doing this because the led was blinking when uploading the sketch and I needed to know if it was the sketch running or some boot stuff -> it was boot stuff).

Now I tested the sketch upload with 2 methods:

  1. Just connecting arduino uno and pressing Upload sketch button
  2. Connecting arduino uno, holding reset and just when "Binary sketch..." shows in the console I let the reset go.

The two methods return different errors (at least in the video but i'm trying to reproduce it right now with no success).

avrdude: Yikes!  Invalid device signature.
         Double check connections and try again, or use -F to override
         this check.

I've tried a lot of things, I've read a lot of tutorials but I can't solve this problem.. Help?

EDIT: verbose output, Using Port : \\.\COM3 Using Programmer - Pastebin.com

As far as I could see, you miss a connection from Arduino pin 10 to Attiny reset

Erni:
As far as I could see, you miss a connection from Arduino pin 10 to Attiny reset

true. retried it right now and the error is the same:

avrdude: Yikes!  Invalid device signature.
         Double check connections and try again, or use -F to override
         this check.

I've enabled verbose output, Using Port : \\.\COM3 Using Programmer - Pastebin.com

  1. Just connecting arduino uno and pressing Upload sketch button

Try File->Upload using programmer

http://www.ernstc.dk/arduino/attiny85.html

Erni:

  1. Just connecting arduino uno and pressing Upload sketch button

Try File->Upload using programmer

Programming ATtiny85 with ArduinoISP

same error..

Wiring. One or more connections is wrong.

I've checked the wiring a lot of times and I don't see anything wrong..

EDIT: if you look at the capacitor you can see the stripe on the left side meaning the capacitor is reversed but it's only an illusion from the light and the negative side of the capacitor is connected to the ground

Do all the wires conduct electricity?

I'm getting these values while the arduino is connected to the usb port (so everything is standby, i'm not uploading the sketch):

  • attiny is getting 4.97V (pin 3 in attiny)
  • pin 13 is outputting 0.07V (connected to pin 2)
  • pin 12 is outputting 0.0V (connected to pin 1)
  • pin 11 is outputting 0.0V (connected to pin 0)
  • pin 10 is peaking 4.35V (reset pin)
  • the capacitor is charged

this being an attiny85v, has anything to do with it? i guess not but idk..

I had some trouble with the capacitor not connecting properly when plugged directly in the headers of the board. Moving it to the breadboard solved the problem.

Shpaget:
I had some trouble with the capacitor not connecting properly when plugged directly in the headers of the board. Moving it to the breadboard solved the problem.

yep, already did that with no success. the measurements I took in the last post were with the capacitor on the breadboard.

looking at the avrdude output, what can you say about this? (Using Port : \\.\COM3 Using Programmer - Pastebin.com)

andrepcg:

  1. Just connecting arduino uno and pressing Upload sketch button

Correct.

  1. Connecting arduino uno, holding reset and just when "Binary sketch..." shows in the console I let the reset go.

Incorrect. Stop doing that.

The two methods return different errors (at least in the video but i'm trying to reproduce it right now with no success).

You only posted one error message...

avrdude: Yikes!  Invalid device signature.
         Double check connections and try again, or use -F to override
         this check.

That error goes with #1 or #2?

if you watch the video I have the error there.

but that error is happening with situation #1, I stopped doing the 2nd

There are two possibilities... 1. Wiring; 2. Clocking

If you have never successfully changed the fuses (done by "Burn Bootloader") then it cannot be #2.

Do not cross-post. I deleted your other topic.

i bought the attiny85 from ebay and this is the first time i'm doing something with it.

i've read some stuff about clocking but I can't figure it out. i have a spare 32KHz crystal, I tried plugin it in the attiny external crystal pins (from the datasheet) but it didn't work. I know almost nothing about attiny and external crystals and fuses etc...

So please guide me, it must be the clock. My arduino is running the ArduinoISP sketch successfully (it is heartbeating in D9), everything is connect like it should to the attiny and I have a spare 32KHz crystal I can use (no 16MHz nor 20MHz..). What steps should I take using the crystal to get my attiny to work right at 8MHz with internal clock

ps: and sorry about the other post, my mistake

Use this version of ArduinoISP... https://raw.github.com/adafruit/ArduinoISP/master/ArduinoISP.ino Don't forget to remove the capacitor when you upload the new ArduinoISP sketch and reconnect the capacitor after uploading. Don't forget to change the board setting before uploading.

Connect pin 9 on the programmer (your Uno) to XTAL1 / physical pin 2 on the target (ATtiny85).

Try to upload a sketch to the target. Don't forget to change the board setting to one of the ATtiny85 internal oscillator settings.

So I unplugged Uno, removed the capacitor, set the board as Arduino Uno, plugged Uno, uploaded the ArduinoISP sketch you provided, everything went fine, unplugged Uno again, connected capacitor, set board as ATtiny85 @ 1MHz (internal osc), plugged Uno, sent the blink sketch and freaking error again......

output: C:\Users\Andre\Desktop\arduino\hardware/tools/avr/bin/avrdude -CC:\Users\Andre\D - Pastebin.com

what the hell is going on? so much trouble...

sorry about the double post but it's relevant.

what if I told you that using the command line avrdude and the command -F to ignore the signature, it worked?

but it's too fast. the blinking is set to 1s but it's taking something like 1/4s to blink. and i still can't upload it correctly using the arduino program, it always gives me signature error

is there any way to correct the signature error? the fuses are set correctly but i still can't use the arduino software to send the sketches..

edit: and i can make it run at 1MHz but the timings are off (delay)

First step should always to be sticking LEDs on pins 7/8/9. From the ArduinoISP code:

// this provides a heartbeat on pin 9, so you can tell the software is running.
uint8_t hbval=128;
int8_t hbdelta=8;
void heartbeat() {
  if (hbval > 192) hbdelta = -hbdelta;
  if (hbval < 32) hbdelta = -hbdelta;
  hbval += hbdelta;
  analogWrite(LED_HB, hbval);
  delay(20);
}

Now you'll know if you've actually got the ISP sketch running. Anything else is guesswork.