IMPLEMENTED SO FAR
- Support for 4x20 LCD Display and large number display
- Brightness and contrast adjustment with remote
- (OPUS/Wolfson WM8741) DAC volume control: remote and rotary encoder
- (OPUS/Wolfson WM8741) DAC random filter selection 1 to 5 with remote
- (OPUS/Wolfson WM8741) DAC upsampling selection (L, M, H -this is the OSR setting)
- I2C level shifting (5V to 3.3V)
- Optimized power-up sequence
HIFIDUINO and OPUS DAC
Here is Arduino/LCD with my DAC. It is the OPUS DAC from Twistedpear Audio.
2 comments:
It looks like you're really rolling on this project! Any sound yet? ...curious about your eventual choice of DAC filters, since more options are available in software than hardware mode. Also, my opus boards got noticeably cleaner after a couple hundred hours.
Cheers!
Francolargo
Hi Francolargo. Yeah is going "well". Have been reading the data sheet on how to program the registers. And got to review programming. Last time was like 15 years ago. Yeah, I want to try the 5 different filters, digital volume, DSD/PCM switching, soft mute, etc. but I need to A/B. Not sure what to listen too. It already sounds really good.
glt
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