MacPicoModem

Mac Pico Modem

A Pico W based RS422 <-> WiFi modem with Hayes AT style commands and Global Village Teleport style LED indicators

| The Mac Pico modem |

This project is an adaptation of the mecparts's Pico WiFi Modem.

My goal was to make it work with a mac serial port, look the part, and be cheaper to make.

First time setup

The default serial configuration is 9600bps, 8 data bits, no parity, 1 stop bit.

Here's the commands you need to set up the modem to automatically connect to your WiFi network:

1. AT$SSID=your WiFi network name to set the WiFi network that the modem will connect to when it powers up.
2. AT$PASS=your WiFi network password to set the password for the network.
3. ATC1 to connect to the network.
4. Optional stuff:
   • AT$SB=speed to set the default serial speed.
   • AT$SU=dps to set the data bits, parity and stop bits.
   • ATNETn to select whether or not to use Telnet protocol.
   • AT&Kn to use RTS/CTS flow control or not.
   • AT&Dn to set up DTR handling.
5. AT&W to save the settings.

Once you've done that, the modem will automatically connect to your WiFi network on power up and will be ready to "dial up" a connection with ATDT.

Command Reference

Multiple AT commands can be typed in on a single line. Spaces between commands are allowed, but not within commands (i.e. AT S0=1 X1 Q0 is fine; ATS 0= 1 is not). Commands that take a string as an argument (e.g. AT$SSID=, AT$TTY=) assume that everything that follows is a part of the string, so no commands are allowed after them.