Table of Contents
WIOesp & WIOpico
- WIO Setup | WIO Control | User Bitmaps | WIO Firmware | WIO Mobile | Cable | LEDScript | IOScript | Crontab | WIOpi
Introduction
WIO is the abbreviation for Wireless I/O.
General I/O
The general purpose I/O is comparable with the Pi02/GCA50/CANGC2, using WiFi as wireless communication 'bus' instead of wired I2C/LocoNet/CAN, and
is compatible with all known GCA Extension Units.
The main part of the needed I/O settings are defined in Rocrail, which makes a hardware swap al lot easier.
Throttle
The throttle supports the following configuration:
- Rotary for speed, direction and selection of loco and function.
- Up to 6 push buttons for functions and selection.
- Display.
| Only the ESP32, Lolin D32, is supported. |
The in Rocrail defined locomotives can be transferred to the throttle(s) by sending the Short IDs. (Up to 256)
Options
Standard
The General I/O is controlled by the I2C bus.(MCP23017) This I2C bus can simultaneous be used for:
- Two I/O Expanders MCP23017 (32 I/O)
- ESP32 and PicoW up to 4 MCP (64 I/O)
- Two displays, compatible with RocDisplay.
- One Sensor for temperature, humidity and pressure.
- One Sensor for light.
- Two 7-Segment display for time, date, temperature and simple dynamic text.
- Play wave files in case of the LOLIN D32 with on board DAC output. (Digital Analog Converter)
Extra
Extra options, which needs accurate timing, are mutual exclusive:
- 64 LED chips control like the WS2812. (128 on PicoW)
- Four Servos.
- Two RC522 RFID readers.
- Mobile PWM motor control.
- CAN interface for 125/250kB standard/extended frames on TCP port 5550. (Binary)
- CAN Node in a RCAN compatible system, not using WiFi.
Serial RS232
The serial options are also mutual exclusive:
- Monitor. (default)
- RailCom reader.
- Mobile RFID reader.
I2C RocNetNode
The following RocNetNode boards are compatible with WIO:
| Unit | Description | I2C Address(es) | Remark |
|---|---|---|---|
| Pi02 | 32 I/O | 0x20, 0x21 | Only on WIOs without MCP23017 on board. Must start with 0x20. |
| Pi03 | 16 Servos | 0x40 | This will deactivate the Servo option, and can be used in combination with other options. |
| Pi06 | Power supply and I2C HUB | - | For use in combination with the WIO-I2C. |
| Pi08 | 16 Dimming LEDs | 0x60…0x67 | Max. 8 units; 128 LEDs. This will deactivate the FastLED option. |
| Unit | Description | Replacement |
|---|---|---|
| Pi04 | I2C Throttle | WIO-Control |
| Pi05 | Loco Controller | WIO-Drive |
| Pi07 | Transformer Sensor | GCA94 |
Converter Cable
| RJ12 | RJ45 | Name | PSK 254/4W |
|---|---|---|---|
| 1 | 2 | +5V | 4 |
| 2 | 3 | I2C SCL | 2 |
| 3 | 4 | GND | 3 |
| 4 | 5 | I2C SDA | 1 |
Kits & PCBs
WIO I/O
For all basic functionality except throttle.
Features all needed connectors for all options.
WIO Boost
Specially for Option DCC with integrated 3A booster. (H-Bridge)
WIO Prog
Same as the WIO Boost but with an extra H-Bridge for Service Mode, Programming Track.
WIO Drive
Specially for Option DCC and Mobile with integrated 3A booster. (H-Bridge)
Note: Not compatible with the WEMOS D1 Mini; Won't boot. Use a LOLIN D1 Mini only for the WIO-Drive.
WIO VC1
Command Station with booster from 1.6 to 20A.
WIO Control
A throttle based on LOLIN D1/D32 with display and rotary.
See WIO Control for functional information.
WIO CAN
WiFi MBUS/RCAN interface.
WIO I2C
Simple module with I2C buffer which connects to the Pi06.
WIO Clock
(Fast) Clock for 4" 7-segment displays controlled by PCA9622. (IO_CLOCK option in the USERCNF.h)
The time will be synchronised in case the NTP_CLOCK option is activated in the USERCNF.h.
RailCom Reader
A separate amplifier kit, GCA214, is available for reading RailCom data.
| WIO | WIO Drive | WIO Control | GCA214 |
|---|---|---|---|
  |  | .  | .  |
| General purpose I/O and several options | DCC CS, Booster and motor PWM | Throttle | RailCom reader |
| WIO VC1 | WIO Boost | WIO CAN | WIO PROG |
 |  |   |  |
| Command Station up to 20A | 3A Command Station | Interface WiFi-CAN | Command Station |