I've successfully used the atTiny before, but I need to see the values of the sensors I am using and I am trying to do this using SoftwareSerial and not having any luck.
Here are my steps (based on the HLT description/wiring: http://hlt.media.mit.edu/?p=1695)
I am using a Duemilanove as Arduino ISP, then burning bootloader to the atTiny45 chip at 8 mHZ
then I try to upload the software serial code with the aTtiny45(8mHz internal clock) board selected still. it doesn't work when i try to choose the aTtiny45 with arduino as isp. i have a 10uF cap on the board between reset and ground after uploading the isp
#include <SoftwareSerial.h>
SoftwareSerial mySerial(0, 1); // RX, TX
void setup()
{
// set the data rate for the SoftwareSerial port
mySerial.begin(4800);
mySerial.println("Hello, world?");
pinMode(0, INPUT);
pinMode(1, OUTPUT);
pinMode(3, INPUT_PULLUP);
}
void loop() // run over and over
{
int sensorValue = analogRead(3);
mySerial.println(sensorValue);
}
i get the following error, which is normal:
avrdude: please define PAGEL and BS2 signals in the configuration file for part ATtiny45
avrdude: please define PAGEL and BS2 signals in the configuration file for part ATtiny45
but nothing in the serial monitor, except for this when i try different baudrates: ÿÿÿÿÿÿÿÿÿ
does any one have code that they know works? and/or am i doing something out of order? i've tried all the different pin connections, uploading order etc
thanks
i downloaded the new core you recommended, and i am still not seeing anything. does the code look alright? i tried the code from the funduino example as well, do i need to open the serial port somehow, and should i have the 45 (with 8MHz clock) board selected when uploading the serial sketch?
it says it burned bootloader successfully.
i know the error can be ignored but it is still not working.
I ran into a similar problem a while back while trying to use NewSoftSerial on my ATTiny85's... It worked fine for me on Arduino 1.0 after using the update hardware files, but I still prefer to use the AVRISP sketch from Arduino 0022. I didn't have to use a 10uf cap on my UNO, but you should have one just in case. Lastly, you don't need to define your serial pins as inputs/outputs, just start "mySerial" and it should all work. Let me know if you have any further problems
