Hi Dennis I'm brand new to the forum.
I see your question about the usage of max232 is my question as well, I have built an interface with a Wi-Fi chip and asked them if I needed the MAX232 chip to stabilise the signal quality using the picbasic "SEROUT" function and showed them an oscilloscope image of the signal produced and they were very busy and answered with "device connect to Wi-Fi is RS232 interface, the MAX232 chip is needed but not if UART".Did you find out if the process is RS232 or UART ?Name: BaudRate_9600_Inverted.jpg Views: 1771 Size: 219.8 KBName: BaudRate_9600_NotInverted.jpg Views: 1710 Size: 220.6 KB