need help with alarm circuit [toggle output]

[wozzzzza]

been out of electronics too long and ant work this one out now.
i want to build a circuit, an alarm circuit, that will toggle armed and unarmed with 2 separate high inputs, e.g. one input goes high for half a second to turn it on and another input goes high for half a second that turns it off. no matter how many times a high pulse is sent to the on input, the alarm will remain armed and vica versa.
another n/c input to trigger the alarm out for 5 seconds, so when this input is open circuit it will trigger the alarm output for 5 seconds only when the circuit is armed. after 5 seconds waits for another alarm input.
how can i build something like this easily??

MODERATOR ACTION:

• Added relevant information on title

 

[danadakk]

No you use the Arduino UNO board selection (or whatever you purchased) -

 

[wozzzzza]

if i get just the ATMEGA328P chip and crystal and few other components, if i use the Arduino Nano as ISP programmer like i do for the attiny85 can i also program the ATMEGA328P on a breadboard with that? with the crystal and capacitor and whatever, will that work?

 

[danadakk]

Using an Arduino Nano to program (as ISP) a standalone 328p

I uploaded the ArduinoISP sketch to an Arduino Nano to use it as a programmer for other chips. It worked successfully to program an ATtiny45, I did the usual wiring between them, and added a 10uF

arduino.stackexchange.com

SKetch upload ATMega328 with nano as ISP

I followed the description Gammons page "Now the chip has a bootloader, and you can disconnect the power (USB cable) and remove the crystal or resonator. The bootloader installation process changed the fuses on the processor, so it now runs from the 8 MHz internal oscillator. You can confirm...

forum.arduino.cc

Bootload / program Atmega328 with Nano / Uno as ISP

Learn to program a Atmega328P or PU IC using an Arduino Nano as ISP Programmer. You can Burn a bootloader in an empty IC or burn sketches quickly from a breadboard.

amoghdesai.com

Google is your friend....

 

[wozzzzza]

having trouble working out what pin does what here, ive got it working with the atmega328P, uploaded the blink code and it said it was done no errors, and i put a led between pin 2, PD0, and earth with 470r resistor and no blink. just on solid.
this is the code, what am i doing wrong?

void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(0, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(0, HIGH);  // turn the LED on (HIGH is the voltage level)
  delay(1000);                      // wait for a second
  digitalWrite(0, LOW);   // turn the LED off by making the voltage LOW
  delay(1000);                      // wait for a second
}

 

[danadakk]

You have

Pin 0 >> LED >> Resistor >> Ground right or Pin 0 >> Resistor >> LED >> Ground right?
The below pin used another pin, pin 9, but you get the idea .....

Correct polarity on LED ?

Note in your code delay(400) is a delay of 400 mS, not 1 sec.


Regards, Dana.

--- Updated Nov 27, 2024 ---

Note pin # versus symbolic pin :

Use "D5" in code, not "0", given its one of the UART interface pins

 

[wozzzzza]

i changed the 0 to PD0 for the mega pin 2 still nothing.

 

[wozzzzza]

i dont even know if the code is even going to the mega328 or the nano board as nothing is going on with the mega, no leds working.

 

[danadakk]

Start by getting blink sketch on Nano working -

https://www.youtube.com/results?search_query=arduino+nano+blink

When you compile the sketch you can see in the output window the compile
followed by the programming activity.

Do you have an oscilloscope to see if pin is toggling ?

 

[wozzzzza]

Start by getting blink sketch on Nano working -

https://www.youtube.com/results?search_query=arduino+nano+blink

When you compile the sketch you can see in the output window the compile
followed by the programming activity.

Do you have an oscilloscope to see if pin is toggling ?

that works perfectly, no scope.

 

[danadakk]

Then turn Nano into a programmer -

Arduino Nano as an ISP Programmer – Martyn Currey

www.martyncurrey.com

When you wire in breadboard use colored wires, red for +V, Black for ground, pick a color
for digital in, digital out, analog (I use green for that) so that confirming wiring is much easier.

--- Updated Nov 28, 2024 ---

Sound Card Oscilloscope :

PC Oscilloscope, Generator, Spectrum Analyzer

Quite capable instrument, free, for Audio type work. https://www.roomeqwizard.com/ Be sure to protect sound card inputs and outputs, google "protect sound card inputs", many approaches and circuits on web. Regards, Dana.

www.edaboard.com

https://www.electro-tech-online.com...uency-meter-module.165634/page-2#post-1446586 post #38

Make sure you protect sound card inputs and outputs when you do this. No mistakes otherwise you hose your
PC sound capability.

Or use a Nano as a crude oscilloscope : https://projecthub.arduino.cc/Cifer...scilloscope-at-home-using-arduino-nano-3d2a69
On youtube lots of DIY scopes.

If you are new to solderless breadboards -

Note short leads better. Keep in mind they can have contact issues as they are not exactly space age hi quality contact
systems.

If you are new to prototyping one bit of advice. Its easy to accidentally apply a high V
to a valuable part pin, and blow it up. Use a series R to each pin, say 1K, generally that will
limit current so pin / part is not damaged. When you are confident you can remove the
R's. Note generally dont do that to power pins as part may not operate properly. When you
do this to inputs generally no problem, output's it can reduce drive levels so keep that in
mind.

 

[wozzzzza]

well none of that is working, just error after error. maybe too old.

 

[KlausST]

well none of that is working, just error after error. maybe too old.

If I´m not mistaken you DID NOT report any error message at least for the last 50 posts.
(Capital letters are not meant as a shout, but for emphasis)

If you don´t give the informations .. you need to rely on some people having a crystal ball .. to be able to help you.

Klaus

 

[wozzzzza]

If I´m not mistaken you DID NOT report any error message at least for the last 50 posts.
(Capital letters are not meant as a shout, but for emphasis)

If you don´t give the informations .. you need to rely on some people having a crystal ball .. to be able to help you.

Klaus

fair enough. following those instructions i think to the letter of https://www.martyncurrey.com/arduino-nano-as-an-isp-programmer/
get error of "Property 'bootloader.tool.serial' is undefined" when it gets to burning boot loader

 

[wozzzzza]

i went out got a arduino uno board and worked first go, so something going on here and i dont know what