Configure the ATC-1000WF

THEATC-1000WF is a converter from RS232 / RS485 to Wireless IEEE 802.11b / g low price, equipped with integrated web server. Allows the connection of RS232 / 422/485 devices to Wi-Fi networks. The converter integrates a 2.4GHz radio, dual processor, TCP / IP stack, crypto accelerator, power management and serial interface in a single device. It can be configured either from the serial port through simple ASCII commands, or via WiFi connection. Starting from May 2021 the product has undergone a hardware upgrade while maintaining the same aesthetic and functional characteristics.

Model 1.0: The old model recognizable by the writing in orange on a blue background and by 3 LEDs on the front. It uses the AX220xx module from ASIX. For its configuration, I refer to reading this technical note.

Model 2.0: The new model recognizable by the writing in green on a blue background and by 4 LEDs on the front. The technical documentation is located on the product page, in the article the configuration operations are described.

Comparison image ATC-1000WF models 1 and 2

Configuration via WiFi

When powered on, the ATC1000WF is configured by default to generate an Ad hoc network with SSID HF-A21x_AP. To restore it to default, press the side button through the slot for about 10 seconds. By running a network scan from a PC equipped with a WiFi interface, we will find the network and we can force the connection, the network is free and has no access password.

Once connected to the PC, an IP address (10.10.100.100) is assigned by the DHCP server present in the ATC-1000WF. By default the address 10.10.100.254 it is assigned to the ATC-1000WF converter and assumed as a network gateway.

By typing the IP address from a browser (Chrome example) 10.10.100.254 the converter will ask for the default login credentials admin:admin. Once logged in, you can navigate through the various parameter setting pages.

ATC-1000WF WiFi network connection

Mode Selection: Allows you to set the operating mode. The converter can operate as an access point then generate its own WiFi network to which other devices can connect, or as a station then connect to an existing WiFi network.

AP Interface Setting: Allows you to set the operating parameters as an access point. You can set the network SSID and login credentials and network configuration of the device.

STA Interface Setting: Allows you to set the operating parameters as a station. It is possible to set the SSID to connect to with the relative access credentials and the network configuration (With connection to DHCP or with fixed IP).

ATC-1000WF configuration screenshots

Application configuration

From the menu Application Setting it is possible to set the operating parameters of the TCPIP / Serial gateway.

UART Settings
The serial communication parameters are set:

  • Baudrate: 300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 345600, 460800.
  • Data Bits: 5, 6, 7, 8.
  • Parity: None, Odd, Even, Mark, Space.
  • Stop Bits: 1, 2.

Network Settings
The operating mode is set:

  • Server: you set the TCP / UDP communication protocol, the port on which connections are accepted and the maximum number of connections accepted (1-32).
  • Client: you set the TCP / UDP communication protocol, the IP address and the port to connect to the server device.
ATC-1000WF Screenshot setting application parameters

Serial port configuration

Although not recommended, the converter can be configured by serial port, if the PC does not have serial ports use a USB/Serial converter and a terminal emulation program (Example Toolly), set 57600, n, 8 by sending power on “+++” the converter will send the character “a” if it is answered with an “a” we will receive the answer “+ ok” and the command mode will be activated. The command AT+H<CR> allows you to receive the list of all supported commands.

ATC-1000WF screenshot serial commands from Toolly
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