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WIO - Setup


Rocview → Menu → Programming → WIO


  • No setup is possible if there are multiple devices with the same ID; Power on just one with that ID and change it.
  • This documentation is based on WIO 1.x firmware.


With a query all active WIO devices will respond with there ID, Type and configuration.


With the Set button the ID, name and Type can be changed.

Type Functions
Control Throttle using short IDs
LED 32 I2C I/O and FastLED
SERVO 32 I2C I/O and Servos
RFID 32 I2C I/O and RFID
DCC 32 I2C I/O and DCC CS or Booster
Mobile 32 I2C I/O and PWM to control a H-Bridge or RC ESC
CAM ESP32-CAM board support, no I/O possible.
CAN WiFi-TCP interface between 250kb CAN and Rocrail on port 5550


Reboots the selected WIO module.


Shutdown the selected WIO module.
All WIO modules will shutdown in case the All option is selected.


wio-report.jpg A usage report is generated for all WIO modules in the query.
The default program wil be started to view the CSV file.

WEB Browser

This will open the default WEB Browser with the IP of the selected WIO to be able to maintain SPIFFS files.

CAM Stream

In case of type CAM the streaming link can be used:



The extra service on port 5550 can be used to communicate with a CAN bus like MBUS.
A power off command is send to CAN if the WiFi or Rocrail connection is lost.


Put the selected WIO module in OTA mode for updating the firmware over the air.



Count of 100ms for setting the output pulse length.
Also used for dual coil switch motors.


The RX/TX pins on the ESP8266 are the same as used by the serial monitor.
The serial monitor will get read only, and swapped to another baudrate, when using the RX for other devices.


Default serial Monitor at 57600bps.


RailCom reader, GCA214, at 250.000bps.


RFID ID-12LA reader at 9600bps.

For RailCom and RFID: If the serial monitor is still needed for tracing, the baudrate must be adjusted in the Arduino IDE.


:!: In combination with a H-Bridge, WIO-Drive and WIO-Boost, the power monitor must be enabled to be able to power on. A WIO reboot is required!

Power monitor

Monitor the power consumption and shutoff at 1A. (Must be set for WIO-Drive and WIO-Boost.)


Shutoff at 3A instead of 1A. (Only in combination with the "Power monitor" option active.)


Use an external DCC 3V3 signal. (1.63+)
See the IBB connector on the WIO-Boost and WIO-Drive.
It will power off automatically in case no DCC signal is detected.


Enable RailCom cutout in the preamble and idle packet.
Disable this option in case none RailCom decoders are used.

Mobile servo PWM


In case of WIO Mobile, this option will set servo compatible PWM on the D5 pin, which can be used to connect a RC ESC. (Electronic Speed Control)


Rotate 180°

Rotate the display content 180°.


Select the connected displays geometry.



Number of rotary ticks for 100% speed.

Deep sleep

Put WIO Control into deep sleep after a time out of x minutes.


Synchronize speed and function field events. Disable in case of a slow network to avoid slider jumping.
:!: This option will only work well in case the used Command Station reports speed changed at once. In all other cases the WIO-Control cannot set the loco speed.


The board layout is automatically selected in case the selections does not fit to the architecture.
Only architecture ESP32 can be of different layouts.


Select the desired camera stream framing size.
The WIO CAM must be rebooted to make this selection active.


With the Set button the pulse length, options and the selected I2C field can be changed.

arduino/wio-setup-en.txt · Last modified: 2021/11/12 10:43 by rjversluis