Tapuino, the $20 C64 Tape Emulator

[sweetlilmre]

I think A4 is SDA and A5 is SDL? // TWI for pullups

#define TWI_PORT PORTC

#define TWI_PIN_SDA 4

#define TWI_PIN_SCL 5

Just checked and you are correct, SCL:A5 SDA:A4

EDIT: I've checked in the latest code and design file to GitHub. The Fritzing file will now be correct.
To check Nano pinouts this may be helpful: https://drive.google.com/file/d/0B_J...ew?usp=sharing

-(e)

[sweetlilmre]

Playing with Eagle:

[protek]

I've been planning to start making my own Tapuino. I wonder if this Arduino SD card reader is suitable for the project?

[sweetlilmre]

Hi,

I have something similar and while I haven't tested it, I think it'll probably work as long as it's 5V compliant. If it's meant as a breakout board for the Arduino you should be good to go.

Edit: please feel free to give me a shout if I can help with anything.

[stephenfalken]

I've been planning to start making my own Tapuino. I wonder if this Arduino SD card reader is suitable for the project?

That looks near identical to the SD card module that I used for my Tapuino. Each pin is doubled so u only need one row of them.

Good luck with building the Tapuino!

Regards

[mhh]

Juat Ordered the first parts I was missing from China. Looking forward to build a couple of these for my computers.

[ozayturay]

@sweetlilmre: Can you make a sample wrapper class with needed functions in order to use a different LCD like 84x48 Nokia 5110 LCD or even 128x64 SPI or I2C OLED?

[sweetlilmre]

The I2C oled should be easy enough as I have just received one. For the others I don't have the hardware. SPI is probably going to require more dev as that will share the bus with the SD card. The code is pretty specifically geared to the 16x2 type LCDs but you could take a look at the lcdutils files for a basic interface.

[sweetlilmre]

Funny story...
By pure accident my recently acquired oled I2C display ended up in my daughter's ballet bag (totally my fault).
She very diligently brought it back to me, but unfortunately the screen didn't survive the experience...

So that oled testing might have to wait a while
Bummer....

On top of that there is a crippling postal strike on at the moment, so it may be a while until I can get a replacement.

@ozayturay: if you want some more exotic (from the perspective of the Tapuino design) displays supported, you could always donate the hardware to me and I'll take a look?

-(e)

[ozayturay]

I have a suggestion and a request.

Suggestion: I think the motor signal wire after the output of the opamp should be yellow instead of white, just like between the tape port and the input of the opamp. This way following the signal will be easier.

Request: Can you add a status led for loading or SD card access to the project?

I'm building your design with a Pro Mini in an old USB ADSL modem enclosure. I'll share the pics when complete. Thank you for this great project.