starting project, adapting template files, added archived predecessor
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@ -0,0 +1,573 @@
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/*
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=============================================================================
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FireFly Morse Throwie
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- a light controled (LED as Sensor) morseblinker throwie with ATTiny45/85
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=============================================================================
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Project definitions, sources
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-----------------------------------------------------------------------------
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Version: 0.5 - Attiny45 Version
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Date : 23.02.2014
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-----------------------------------------------------------------------------
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Inspired by Karl Lunt's FireFly project I wrote some code to make this
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Throwie lasting longer, blinking only at low light levels and morse also
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some text.
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http://www.seanet.com/~karllunt/fireflyLED.html
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How it works:
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LED detects light level, using bleeding out time of LED pn-capacitor.
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If dark enough blink a text in morsecode (ATTiny45 = 22 Chars, text will
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be defined in line 191/192 of this file)
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To save energy go to powersave mode after blinking or light level is
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over threshold. Tests this every 8s (maximum time for watchdog timer
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possible for ATTiny). Repeat this endless
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Programming:
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by Arduino IDE + ATTiny extension:
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http://highlowtech.org/?p=1695
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an USB Programmer for ATMELs or you can use an Arduino UNO to do this.
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http://highlowtech.org/?p=1706
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Partslist:
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1x ATTiny45 (or Attiny85 but I had have a couple of 45er left, not tryed
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out at a *85),
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1x LED (all typ will work, but you have to adjust the light sensity
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||||
(see --> "darknessThreshold"). Clear plastic LED types are more light
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sensitiv,
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1x 100 Ohm Resistor
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1x CR2032 Battery other batterytypes also good. everything was provide a
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Voltage from 3V...6V.
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I have also one version working with a 1F Goldcap and a small 5V solar
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module.
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1x rare earth magnet, because it is a throwie ;-), but not need for working
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~x some tape or other stuff to protect the throwie
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that's up to you.
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The wiring, it's very simple:
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+---+ +------\/------+
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| | ATTINY45 /85 |
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> | -+1=PB5 VCC=8+-> to battery Vcc 3V
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100 Ohm < | | |
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> +------+2=PB3 PB2=7+-
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| | |
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----- +------+3=PB4 PB1=6+-
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LED / \ | | |
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----- | +--+4=GND PB0=5+-
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| | | | |
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+---+ | +--------------+
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||||
|
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+---------------------> to battery GND
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You can use other pins if necessary, theoretical up to 3 LEDs, as example I
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tried out to connect another one at PB2&PB1. working fine. Basic wiring:
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+ LED_N_Side), wired to a digital pin, NOT Vcc
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|
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<
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> 100 ohm resistor
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<
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|
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|
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-----
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/ \ LED, maybe a 5mm, clear plastic is good
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-----
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|
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|
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+ LED_P_Side), wired to a digital pin, NOT Gnd
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-----------------------------------------------------------------------------
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Im just a newbe in ATTiny / Arduino programming, so many thanks to:
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Programming ATTiny with Arduino IDE:
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http://highlowtech.org/?p=1695
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LED Lightsensor, Arduino Playground:
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http://playground.arduino.cc/Learning/LEDSensor
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Powersaving Mode for Attiny45/85:
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A good description by Martin Nawrath nawrath@khm.de and the folks at
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http://www.insidegadgets.com/2011/02/05/reduce-attiny-power-consumption-by-sleeping-with-the-watchdog-timer/
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With this description I got ~5uA during sleep mode.
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in Morse-Mode with LED OFF: 1.7mA
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LED ON: 6.9mA
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--> I hope to run this throwies ~40days with one CR2032.
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Morsecode
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To translate a text into morsecode, there are several ways. You can use
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this fine online translator:
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http://morsecode.scphillips.com/jtranslator.html
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There is also a great morse coder / encoder from Matthias Esterl aka madc.
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Works fine for Arduino, but not for ATTiny because of RAM limitations. But
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maybe this is helpful if your project works with an Arduino.
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https://gist.github.com/madc/4474559
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For this project I use a simple case structur. Looks arkward, but the
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ATTiny45 has only 256byte RAM but 4kFlash. A data structure is better programming
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but needs a lot of RAM we not have. Therefore this ugly case structure.
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This will waste the flash memory but we have enough and saving RAM for
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our payload - the ASCII-string with the morsetext.
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BTW - Morsecode itself:
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'A', ".-" 'B', "-..." 'C', "-.-."
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'D', "-.." 'E', "." 'F', "..-."
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'G', "--." 'H', "...." 'I', ".."
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'J', ".---" 'K', ".-.-" 'L', ".-.."
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'M', "--" 'N', "-." 'O', "---"
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'P', ".--." 'Q', "--.-" 'R', ".-."
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'S', "..." 'T', "-" 'U', "..-"
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'V', "...-" 'W', ".--" 'X', "-..-"
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'Y', "-.--" 'Z', "--.."
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'1', ".----" '2', "..---" '3', "...--"
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'4', "....-" '5', "....." '6', "-...."
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'7', "--..." '8', "---.." '9', "----."
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'0', "-----"
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'.', ".-.-.-" ',', "--..--" '?', "..--.."
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'!', "-.-.--" ':', "---..." ';', "-.-.-."
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'(', "-.--." ')', "-.--.-" '"', ".-..-."
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'@', ".--.-." '&', ".-..."
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-----------------------------------------------------------------------------
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Legal stuff / Copyright:
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Creative Commons Attribution ShareAlike 3.0.:
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http://creativecommons.org/licenses/by-sa/3.0/legalcode
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-----------------------------------------------------------------------------
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*/
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// ===========================================================================
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// Ok folks, let's start
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// ===========================================================================
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// for sleep Mode / Powersave we need some additional stuff. Its alredy there,
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// if you installed the Attiny extension for Arduino IDE, no additional
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// installing needed.
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#include <avr/sleep.h>
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#include <avr/wdt.h>
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// ===========================================================================
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// Some definitions for powersave depending of ATTiny type.
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#ifndef cbi
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#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
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#endif
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#ifndef sbi
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#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
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#endif
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// ===========================================================================
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// for ATTiny45
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// Unit length < 150 will hard to be read for optical morse code
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// > 300 are too slow in my feeling for longer text
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//
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// for ATTiny85
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// Unit length < 5 will hard to be read for optical morse code
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// > 10 are too slow in my feeling for longer text
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//
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#define unitLength 200
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// ---------------------------------------------------------------------------
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// LED Pin definitions,
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// theoretical you can use up to 3 LED. For example you can use it for a
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// landmark beacon. So if you point this LEDs to different directions you can
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// detect the position in dependence of your location to the bacon.
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#define LED1_N_SIDE 4
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#define LED1_P_SIDE 3
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// ===========================================================================
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// Variables
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// ===========================================================================
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// ###########################################################################
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// # and now the text, but be aware, only 256Byte RAM for Attiny45 #
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// # so there are only 22 Chars left for your message. #
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// # BTW with an Attiny85 you will have additional 256byte #
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// # => more than for twitter :-) #
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String morseText =
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"ICL Q1-16";
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// # "....5....1....5....2.."; just a ruler, remember 22 Chars for ATTiny45 #
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// IT IS USELESS
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// ALL HAIL THE GLOW CLOUD
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// ALL MY VICES ARE DEVICES
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// I HATE YOU SO MUCH
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// THE INSIDES OF THINGS ARE BEAUTIFUL
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// LIBERTAS PER SCIENTIAM (Freedom through Knowledge)
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// http://en.wikipedia.org/wiki/List_of_mottos
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// ###########################################################################
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// Define light trigger threshold. best way to set it on dusk / dawn level
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// diffuse red ones are less sensitive than clear green ones...
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int darknessThreshold = 17000;
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// Interrupt Flag, should be volatile, means: read from RAM, not register
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// because registers are used for interrupt handling, it have to be volatile.
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volatile boolean f_wdt = 1;
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// ===========================================================================
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// Setup watchdog
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// 0=16ms, 1=32ms,2=64ms,3=128ms,4=250ms,5=500ms
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// 6=1 sec,7=2 sec, 8=4 sec, 9= 8sec
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// ===========================================================================
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void setup()
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{
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setup_watchdog(9);
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}
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// ===========================================================================
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// Main
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// ===========================================================================
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void loop(){
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if (f_wdt==1) { // wait for timed out watchdog
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// flag is set when a watchdog timeout occurs
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f_wdt=0; // reset flag
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// if it's dark enough [>darknesThreshold] morse
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if (sensDarkness(LED1_N_SIDE, LED1_P_SIDE) > darknessThreshold){
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// looks like it's dark, so do your job
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morse(LED1_N_SIDE, LED1_P_SIDE);
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}
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}
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// set all used port to intput to save power
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pinMode(LED1_N_SIDE,INPUT);
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pinMode(LED1_P_SIDE,INPUT);
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system_sleep();
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f_wdt=0; // 2nd time sleep
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system_sleep();
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}
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// ===========================================================================
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// Subroutines for Sleeping
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// ===========================================================================
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// set system into the sleep state
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// system wakes up when wtchdog is timed out
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void system_sleep() {
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cbi(ADCSRA,ADEN); // switch Analog to
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// Digitalconverter OFF
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set_sleep_mode(SLEEP_MODE_PWR_DOWN); // sleep mode is set here
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sleep_enable();
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sleep_mode(); // System sleeps here
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sleep_disable(); // System continues execution here when
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// watchdog timed out
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sbi(ADCSRA,ADEN); // switch Analog to Digitalconverter ON
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}
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||||
// ----------------------------------------------------------------------------
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// Setup for watchdog. Parameter ii for sleeping time:
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// 0 = 16ms, 1 = 32ms, 2 = 64ms,
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// 3 = 128ms, 4 = 250ms, 5 = 500ms
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// 6 = 1 sec, 7 = 2 sec, 8 = 4 sec,
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// 9 = 8 sec
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void setup_watchdog(int ii) {
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||||
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||||
byte bb;
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||||
int ww;
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if (ii > 9 ) ii=9;
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bb=ii & 7;
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if (ii > 7) bb|= (1<<5);
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bb|= (1<<WDCE);
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ww=bb;
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MCUSR &= ~(1<<WDRF);
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WDTCR |= (1<<WDCE) | (1<<WDE); // start timed sequence
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||||
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||||
WDTCR = bb; // set new watchdog timeout value
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WDTCR |= _BV(WDIE);
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}
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// -----------------------------------------------------------------------------
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// Watchdog Interrupt Service / is executed when watchdog timed out
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ISR(WDT_vect) {
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f_wdt=1; // set global flag
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}
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||||
|
||||
// =============================================================================
|
||||
// Subroutines for light sensor
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||||
// =============================================================================
|
||||
// Function sensDarkness
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||||
// Usage: sensDarkness(Pin-No. N-Side of LED, Pin-No. P-Side of LED):
|
||||
// will result "darkness-level" - the higher the darker:
|
||||
// 30000 = pitch black
|
||||
// 0 = sunshine
|
||||
int sensDarkness(int LED_N, int LED_P){
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||||
|
||||
unsigned int i; //Parameter bleed-out LED capacitor
|
||||
|
||||
// charge the capacitor of LED
|
||||
pinMode(LED_N,OUTPUT);
|
||||
pinMode(LED_P,OUTPUT);
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||||
digitalWrite(LED_N,HIGH);
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||||
digitalWrite(LED_P,LOW);
|
||||
|
||||
// Isolate the N end of the diode and turn off internal pull-up resistor
|
||||
pinMode(LED_N,INPUT);
|
||||
digitalWrite(LED_N,LOW);
|
||||
|
||||
// Count how long it takes the diode to bleed back down to a logic zero
|
||||
for ( i = 0; i < 30000; i++) {
|
||||
if ( digitalRead(LED_N)==0) break;
|
||||
}
|
||||
// thats it, return result
|
||||
return i;
|
||||
}
|
||||
|
||||
// =============================================================================
|
||||
// Subroutines for morse text
|
||||
// =============================================================================
|
||||
// -----------------------------------------------------------------------------
|
||||
// Function dit = ".", a dit is as long as a unitLength, used in morse()
|
||||
//
|
||||
void dit(int LED_P){
|
||||
digitalWrite( LED_P, HIGH ); delay( unitLength );
|
||||
digitalWrite( LED_P, LOW ); delay( unitLength );
|
||||
}
|
||||
|
||||
// -----------------------------------------------------------------------------
|
||||
// Function dah = "-", a dah is as long as a 3*unitLength
|
||||
//
|
||||
void dah(int LED_P){
|
||||
digitalWrite( LED_P, HIGH ); delay( unitLength*3 );
|
||||
digitalWrite( LED_P, LOW ); delay( unitLength );
|
||||
}
|
||||
|
||||
// -----------------------------------------------------------------------------
|
||||
// Function morse:
|
||||
// hand over text and LED Pins
|
||||
// because you want to use more than one LED hand over also LED Pins
|
||||
|
||||
void morse(int LED_N, int LED_P){
|
||||
|
||||
// Because I have more Flash than RAM I decided to use a case structure.
|
||||
// Its not so pretty, but I can use the RAM to hold my morseText.
|
||||
//
|
||||
// set N-Side of LED Low, so you can set P-side high to let them flash
|
||||
|
||||
pinMode( LED_N, OUTPUT);
|
||||
pinMode( LED_P, OUTPUT);
|
||||
|
||||
digitalWrite( LED_N, LOW);
|
||||
|
||||
// send it to defined LED
|
||||
for(int i=0; i<=morseText.length(); i++)
|
||||
{
|
||||
switch( morseText[i] )
|
||||
{
|
||||
|
||||
// Chars A-Z
|
||||
case 'A': // .-
|
||||
dit(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'B': // -...
|
||||
dah(LED_P); dit(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'C': // -.-.
|
||||
dah(LED_P); dit(LED_P); dah(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'D': // -..
|
||||
dah(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'E': // .
|
||||
dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'F': // ..-.
|
||||
dit(LED_P); dit(LED_P); dah(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'G': // --.
|
||||
dah(LED_P); dah(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'H': // ....
|
||||
dit(LED_P); dit(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'I': // ..
|
||||
dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'J': // .---
|
||||
dit(LED_P); dah(LED_P); dah(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'K': // .-.-
|
||||
dit(LED_P); dah(LED_P); dit(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'L': // .-..
|
||||
dit(LED_P); dah(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'M': // --
|
||||
dah(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'N': // -.
|
||||
dah(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'O': // ---
|
||||
dah(LED_P); dah(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'P': // .--.
|
||||
dit(LED_P); dah(LED_P); dah(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'Q': // --.-
|
||||
dah(LED_P); dah(LED_P); dit(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'R': // .-.
|
||||
dit(LED_P); dah(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'S': // ...
|
||||
dit(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case 'T': // -
|
||||
dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'U': // ..-
|
||||
dit(LED_P); dit(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'V': // ...-
|
||||
dit(LED_P); dit(LED_P); dit(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'W': // .--
|
||||
dit(LED_P); dah(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'X': // -..-
|
||||
dah(LED_P); dit(LED_P); dit(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'Y': // -.--
|
||||
dah(LED_P); dit(LED_P); dah(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case 'Z': // --..
|
||||
dah(LED_P);dah(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
// Numbers
|
||||
case '1': // .----
|
||||
dit(LED_P); dah(LED_P); dah(LED_P); dah(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case '2': // ..---
|
||||
dit(LED_P); dit(LED_P); dah(LED_P); dah(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case '3': // ...--
|
||||
dit(LED_P); dit(LED_P); dit(LED_P); dah(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case '4': // ....-
|
||||
dit(LED_P); dit(LED_P); dit(LED_P); dit(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case '5': // .....
|
||||
dit(LED_P); dit(LED_P); dit(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case '6': // -....
|
||||
dah(LED_P); dit(LED_P); dit(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case '7': // --...
|
||||
dah(LED_P); dah(LED_P); dit(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case '8': // ---..
|
||||
dah(LED_P); dah(LED_P); dah(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case '9': // ----.
|
||||
dah(LED_P); dah(LED_P); dah(LED_P); dah(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case '0': // -----
|
||||
dah(LED_P); dah(LED_P); dah(LED_P); dah(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
// Special Signs
|
||||
case ' ': // Gap
|
||||
delay( unitLength*5 );
|
||||
break;
|
||||
|
||||
case '.': // .-.-.-
|
||||
dit(LED_P); dah(LED_P); dit(LED_P); dah(LED_P); dit(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case ',': // --..--
|
||||
dah(LED_P); dah(LED_P); dit(LED_P); dit(LED_P); dah(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case '?': // ..--..
|
||||
dit(LED_P); dit(LED_P); dah(LED_P); dah(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case '!': // -.-.--
|
||||
dah(LED_P); dit(LED_P); dah(LED_P); dit(LED_P); dah(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case ':': // ---...
|
||||
dah(LED_P); dah(LED_P); dah(LED_P); dit(LED_P); dit(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case ';': // -.-.-.
|
||||
dah(LED_P); dit(LED_P); dah(LED_P); dit(LED_P); dah(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case '(': // -.--.
|
||||
dah(LED_P); dit(LED_P); dah(LED_P); dah(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case ')': // -.--.-
|
||||
dah(LED_P); dit(LED_P); dah(LED_P); dah(LED_P); dit(LED_P); dah(LED_P);
|
||||
break;
|
||||
|
||||
case '"': // .-..-.
|
||||
dit(LED_P); dah(LED_P); dit(LED_P); dit(LED_P); dah(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case '@': // .--.-.
|
||||
dit(LED_P); dah(LED_P); dah(LED_P); dit(LED_P); dah(LED_P); dit(LED_P);
|
||||
break;
|
||||
|
||||
case '&': // .-...
|
||||
dit(LED_P); dah(LED_P); dit(LED_P); dit(LED_P); dit(LED_P);
|
||||
}
|
||||
// wait at end of sign
|
||||
delay( unitLength*3 );
|
||||
}
|
||||
}
|
||||
|
||||
// -----------------------------------------------------------------------------
|
||||
// That's all, folks :-)
|
||||
// -----------------------------------------------------------------------------
|
||||
1
firmware/archive/ATTINY45_2014_MorseThrowie/pitches.h
Normal file
1
firmware/archive/ATTINY45_2014_MorseThrowie/pitches.h
Normal file
@ -0,0 +1 @@
|
||||
|
||||
Reference in New Issue
Block a user