QL IO board?
Re: QL IO board?
That is - unfortunately - not so useful for the QL. This schematic apparently uses the handshake lines RTS/CTS and DSR/DTR of the 25-pin PC serial port to bit-bang I2C. The QL has only half of these and they are not particularily easy to control as you need to jump through hoops in software to switch them.
ʎɐqǝ ɯoɹɟ ǝq oʇ ƃuᴉoƃ ʇou sᴉ pɹɐoqʎǝʞ ʇxǝu ʎɯ 'ɹɐǝp ɥO