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I2C peripherals based on Attiny85 (mostly)

making noise over I2C, or send IR remotes or get an external controller, just stuff that is only helping if you don't have spare pins left

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I want more peripherals on my Lameboy project! So I build stuff. Soundcard will probably end up on the Lameboy 4 revision. There are a lot of chips out there, that already have an I2C connection. There might be things like sending IR etc, where it makes sense to have an attiny do it, after you tell it what to send.

inspired by https://learn.adafruit.com/trinket-audio-player/sound-playback I want to explore the possibilty of having an I2C based tone generator. Basically like the SID in a C64 but controlled via I2C. Since I have no hardware with me on my vacation, I am only able to design some PCBs.

This project has a grove I2C plug to easily connect to my #LAMEBOY - another ESP12 handheld


I want to send some IR things, so why not make a board that has IR connected and can be controlled over I2C. https://z3t0.github.io/Arduino-IRremote/


Also to test my Game Boy Pocket button+silicone pad recycling idea, I've created a tiny controller board + case. See here for more details: https://hackaday.io/project/26823-lameboy-another-esp12-handheld/log/69994-external-gamepad


BlinkM is also cool, at least they were cool before WS2812Bs were cool. RGB LEDs controlled over I2C, I already use a BlinkM clone called Ghetto Pixel on Lameboy. Google for cyz_rgb to get the firmware ;) 

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oshpark wrote 08/19/2017 at 05:02 point

Wow, you're on a roll! :)

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davedarko wrote 08/19/2017 at 06:22 point

On vacation with no hardware ;) what else could I do :D

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