??? 07/21/10 16:30 Read: times |
#177408 - Expensive solution Responding to: ???'s previous message |
You can perform the level conversion a bit cheaper and smaller than two MAX232 chips. The reason that it works with the two MAX232 is that a MAX232 has different level requirements for logic high and low than the microcontroller. But that could have been accomplished with a buffer or a specific level-converter chip too. |