You keep saying SDA, but do you mean the MOSI pin on the Arduino? Are you using SPI or just GPIO pins?Also, that is a pretty good implementation, using SDA for RS. This keeps complexity of the circuit lower, but adds complexity to your code + requires more pins.
Off topic question, how do you make these ASCII schematics?
Quote from: TheCoolest on Aug 02, 2013, 12:34 amOff topic question, how do you make these ASCII schematics?Hum, the ASCII schematics...., I just copied @bperrybap and changed a few lines. Might be a tool for that.