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Do you need a MAX232 chip for USB to serial?
A max232 chip can be added to bring the signals to RS232 level. Most USB-to-serial cables (including the on you refer to) include both the usb-to-serial chip AND the max232, with no possibility to access the in-between level.
How to setup a RS232 serial port through USB?
RS232 to USB on ebay. The RS232 unit provides all RS232 signals (between +-3V to +/-12V) and will plug into the MAX232 device. Since RS232 voltage levels are generated it will allow operation over long cables. For this method you will need the MAX232 chip (or equivalent) connected as shown in the circuits to decode/encode
Do you need MAX232 serial port for microcontroller?
Using this unit means that you can plug the signals directly to the microcontroller RX TX pins (connect digital serial Rx to uC TX and digital serial Rx to uC Rx to communicate correctly) and you do not even need a MAX232.
Do you need a RS232 chip for PIC?
Since RS232 voltage levels are generated it will allow operation over long cables. For this method you will need the MAX232 chip (or equivalent) connected as shown in the circuits to decode/encode the RS232 signal levels for the PIC’s digital i/o. USB 2.0 TO RS232 SERIAL DB9 9 PIN ADAPTER CABLE GPS PDA Adapter Converter Cable
What do you need to know about MAX232?
Further detail about MAX-232 will be given later in this tutorial. MAX232 is an integrated circuit (embedded in a single chip) designed by Maxim Integrated Products and act as a Voltage Logic Converter i.e. it is used to convert TTL Logic level (Microcontrollers’ COM Port) into TIA/EIA-232-F level (Laptop Serial Port RS-232) and vice versa.
What can MAX 232 be used for on a laptop?
MAX 232 is capable of converting 5V TTL Logic level to TIA/EIA-232-F level and can take up to +-30V input. It is normally used for the communication between microcontroller and Laptop/PC.We can use MAX-232 to convert Transistor Transistor Logic (TTL) voltage level to RS232 and vice versa.
What kind of capacitors do I need for MAX232?
The commonly available IC is MAX232CPE, which is the PDIP version requiring four support capacitors of value 1-µF. There is also the MAX233CPP, which does not require any support capacitors.