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Attiny13 Blink example
Just to keep and share the code... Here is the code for making a LED blink using an Attiny13 MCU from Atmel.
I got a package with about 30 AVR MCU's from different kind yesterday and now I will give them all a try. The next step with the Attiny13 is to build a thermometer with a RGB LED as indicator of the temperature. As temperature sensor I will use the LT1025 chip which I tried some days ago. I got many logic IC's too so it will be a hackish time this december. I will post the code and circuit here in some days when everything is working properly... ;)
#include <avr/io.h>
#include <util/delay.h>
#define LED_PIN PB4
int main(void) {
// Configure LED_PIN (PB4) as output
DDRB |= (1 << LED_PIN);
while (1) {
PORTB |= (1 << LED_PIN);
_delay_ms(500);
PORTB &= ~(1 << LED_PIN);
_delay_ms(500);
}
return 0;
}
Have fun... ;)
Permalink: https://hanez.org/2011/12/04/attiny13-blink-example/
Evaluating LT1025
Today I found a chip named LT1025. It is a Thermocouple Cold Junction Compensator from Linear Technology which is very easy to use for building temperature sensors for measurement and control and can also be used to convert a heat gradient into electricity.
It took about 5 minutes to get it working in the Arduino environment.
Just order some samples from Linear, they will send you one or two without charge... ;)
Evaluating 74HC238
I am currently working me thru my box of microchips and other electronic stuff. I found some 74HC238 IC's today and gave them a try. It was no very spectacular event but it's nice to know what I have laying around when starting the next AVR project.
The 74HC238 is a high speed CMOS 3 to 8 line decoder which makes it possible to control 8 outputs with only 3 input lines. You will find more information and the datasheet at Sparkfun.
I used it to control 8 LED's with my Arduino using just 3 output pins. Nothing worth to show you a photo... ;)