Arduino

[phonedawgz]

The MAX 232 circuit is used to convert a serial RS232 signal to ALDL. There are two parts to the circuit. The first is the MAX232 chip itself. The chip converts the RS232 signal to a TTL signal. Then from there the diode and resistor converts the TTL signal to the ALDL 8192 signal.

Since the Arduino pins are already a TTL type signal, there is no need to use the MAX232 chip. I don't believe you can get away with the simple diode/resistor interface to convert an Arduion TTL signal to the 8192 ALDL interface however.

I also don't believe you can get away with the 'just tie them together' trick to interface the TTL to 8192 ALDL either.

// idk maybe it was funny