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pancio

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Posts posted by pancio

  8. Posted

    The SCART connector also has I2C. It's used to sync TV and video, so both have the same channels on the same numbers. I'm not sure if that can be used for anything useful this days, but it sure would be fun to change the order of the channels using the Atari 8 bit computer.

     

    I've never heard about I2C on SCART. Yes, it's true that we have D2B but I have no knowledge regarding this protocol (Is it compatible with I2C?). Anyway, I though rather connect Atari to many other sensors/devices like power meter, gyroscope or small OLED screen and finally make something like AtariPi :-). As you requested, I'll prepare short user guide soon.

     

     

     

    Yes, I can imagine. The DS3231 has a temperature sensor built into it but since the module is inside my 800XL it normally reads 90 Degrees F.

     

    I can plug another module into a joystick port and place the module in more useful place for measuring temperature

     

    Great, I'm looking for persons which can to develop and support any kinds of sensors. I may develop the hardware and some parts of software but I haven't so much time in order to create drivers for all of I2C devices. Are you willing to help me? I may sell the prototype PCB...

     

     

    Sincerely

     

    pancio

  10. Posted

    Very cool!

     

    Thanks to Hias Reichl's I2C driver written long ago I've been able to connect and use a DS3231 clock module which connected to PIA and set SDX's clock. I've wondered what other I2C devices I could connect but assumed that bit banging via PIA would be too slow to use anything like say an LCD. I didn't have to worry about speed or gobs of data with an RTC.

     

    I don't even know what other I2C devices are available.

     

    many...

     

    I started with PCF8574 (Remote 8-Bit I/O Expander for I 2 C Bus) - very popular in the eBay market as completely assembled module. I wrote software which can write and read values to/from PCF8574 register just only for test but I've idea to write driver for LCD display (with HD44780 controller). We may use any I2C device like Bosh BHT280 in order to read temperature, pressure and others... can imagine? :-)

     

    Regards,

     

    • Like 1

  11. Posted

    Hi Mathy,

     

    Yes, my interface is connected directly to parallel bus and can be addressed by use any address from D58X. Of course, you may to address it by using D18X, doesn't matter. You may connect it to PBI, but D5XX signal you should connect from Cartridge socket or from Atari motherboard directly. So you may use other devices connected to PBI if those were configured with other addresses. The first version of my interface is independent and you may use it into all Atari (but you must provide any signal from motherboard) . For your information, I planned to make the CART/ECI version but I'm not sure regarding PBI (I haven't specific ISA socket). Every important information you may check on schematic... I'll prepare some guide if you want.

     

    For clarify:

    PCB version 1.1:

    http://dirtypcbs.com/store/designer/details/pancio/5998/atari-8-bit-i2c-interface

     

    PCB version 2.1

    https://www.seeedstudio.com/Atari-8-bit-I2C-Interface-A2I2-g-1127014

     

    Regards,

    pancio

    • Like 3
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