I purchased a NEO-6M GPS board to connect to my Raspberry Pi, and when I bought it I didn't realize that it was meant for RS-232 communication instead of UART TTL (which I believe is what the Raspberry Pi uses). I found an adapter which I think would work for connecting this. It is a USB to RS232/TTL cable which utilizes a PL2303HX chip. Looking at the datasheet for this chip though, it says it supports "RS232-like" communication, and it looks like it only lists 1.8v-3.3v as the supported I/O voltage range (however I may be reading the wrong value in the datasheet for this). The GPS board that I bought outputs -5.5v to +5.5v though for its I/O. I am confused because it seems like this adapter should work for RS232 communication but the voltages don't seem to match. Would it work or should I find another?

Edit: Here is the PL2303HX datasheet (which is inside the USB to RS232/TTL adapter): https://cdn-shop.adafruit.com/datasheets/PL2303HX.pdf

  • 1
    \$\begingroup\$ Certainly you could purchase an RS232-USB adapter (one with a DE9 connector). \$\endgroup\$
    – Frog
    Jan 12 at 5:55
  • 1
    \$\begingroup\$ Comments are not for extended discussion; this conversation has been moved to chat. \$\endgroup\$
    – Voltage Spike
    Jan 12 at 6:45

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