I don't know what you mean by "runs independently from the main loop". Thanks for the advice! I guess I'll have to write something that runs independentlyfrom the main loop
#Using 3 pin passive buzzer instead of piezo sounder code
I don't think its a good idea to use PWM for this because from what I understand - changing frequency quickly and to specific rates can be quite a complex task and may require a lot of code - please correct me if I am wrong on this one.īecause of that I think it is best to just manually set the pin on/off inside the loop, changing the time between switches to change the frequency. Unfortunately I don't know much about how piezo speakers work, I hope someone could put me on the right track. If an output capable of producing PWM is used with a passive piezo, it can play various sounds including the Arming sound, Mode Change sound, and Lost Vehicle. I decided to write my own implementation to keep the size of the whole project small. So unfortunately I can not use the tone() library, a simple project that plays 3 notes with it weights at least 2.5K and that is what my whole game currently weighs.
My project does have a limitation though - I want to transfer this game to an attiny45 chip which has much less memory and RAM available compared to the 328p chips. As I mentioned in a couple of other topics - I am working on a "Simon says" handheld game.įor those who are not familiar - its a kind of game where the computer blinks different lights in a particular sequence and the player then needs to repeat it by pressing the buttons in the correct order.Īnyway, I though it would be really cool to add some sound to the game, for example game could make different sounds for different colours, so it would be easier to memorize the sequence and repeat it.
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