WREN-2 ESP8266 Single/Dual Linear Motor Controller Board
WREN is based on the popular ESP8266, in order to easily control Linear Motors in Electric Reclining Chairs and Beds, from a Home Automation system.
Description
WREN is based on the popular ESP8266, in order to easily control Linear Motors in Electric Reclining Chairs and Beds, from a Home Automation system.
Add Comfort to your Home Automation – This is a Smart Home Device
WREN, is an IoT Linear Motor Controller board.
It was initially designed to easily, and safely, retrofit (plug and play), to industry standard Electric Reclining Chairs, with continued use of existing push buttons (or remote hand controller), through isolated input and outputs, whilst also allowing simultaneous electrical control from Smart Home Automation.
- Elderly Assistance
- Mobility Aid
- Empowering the Disabled
- Home Cinemas
- Gentle Exercise Control
- Lounge Gadget
Based on the Ai-Thinker ESP-12S (ESP8266), WREN has seen integration into a number of other interesting applications including, Elderly Assistance, Mobility Aid, Empowering the Disabled, Multi-chair Home Cinemas, Gentle Muscle Exercise Control and of course the humble Lounge Chair Gadget. Through the flexible design and integrated dual-bridge motor controller, the DitroniX WREN SDK allows for a range of other single, or dual, DC Linear Motor applications, such as used in electric beds, shutters, blinds, vents and windows.
The WREN-2 board has a wider operating voltage range of 9v to 38V, in order to expand use cases. The existing features remain, such as single, or dual, linear motor control at max 5.6A max RMS Load Current, array of safety circuitry and ability to operate from the existing 24-29V DC supply provided by the reclining chair, or host. In addition, the PCB outline has been designed to neatly fit into an inline enclosure, complete with cable grips, so making this a complete and safe solution.
Development of ESP8266 software is fully supported through IDE such as Arduino IDE, Platform IO, Eclipse etc. WREN maybe integrated in a variety of home automation technologies such as ESPHome, Tasmota, HiveMQ, ESPEasy, ST Anything, SmartThings, Node-Red, Home Assistant, MQTT, CloudMQTT, IFTTT, Mosquitto, Domoticz, etc.
WREN v2 specification overview:
- Flexible Linear Motor Controller
- Wide Input Voltage Range 9V to 38 DC
- Output Motor Voltage replicates Input Voltage
- Ai-Thinker ESP12S (ESP8266 Series)
- Embedded Firmware
- Integrated 2.4 GHz Antenna
- Supports Development IDE such as Arduino IDE, Platform IO, Eclipse etc.
- Support for Technologies such as MQTT, CloudMQTT, HiveMQ, IFTTT, Mosquitto, Tasmota, Domoticz, Node-Red etc.
- Ports
- UART Flashing Port
- DC Supply Pass-Through
- I2C Expansion Port
- L6205 Dual DMOS Full Brider Driver
- Output Peak Current 5.6A DC
- Two x 5.6A DC RMS channels
- Paralleled Operation (increased current to a single motor)
- Built in Electrical Safety Features
- Sensors
- Digital Temperature Sensor (MCP9808)
- DC Supply Voltage Sensor (ADC)
- Onboard Buck Boost for Regulated 3V3 (Internal Use)
- RGB LED
- Buttons (Tactile)
- Reset
- Programming (Flashing Mode)
Other Points:
- Simple to Fit – Plug and Play (Standard 5 Pin DIN)
- Existing Recliner Manual Button Controls are Unaffected
- Existing Recliner Accessory Devices, such as USB power, is Unaffected
- Voice Control such as via Google Home and Amazon Alexa
- Manual or Remote Control from PC, Phone or Tablet
- No External Power Required (Uses existing 24V, or 29V, DC)
- Controls Single, or Dual, Motor Riser Recliner Chairs
- Safe to Use
- Isolated Controls Input and Motor Output, allowing parallel operation
Top level differences between older WREN-1 verses new WREN-2
- Increased operating voltage range, 9V to 38V (was 12V to 30V)
- Increased DC motor current to 5.6A RMS (was 2.8A RMS)
- Additional Safety Circuitry (allows increased range of uses)
- Additional Developer User Configuration
- Additional EMC Filtering (for when used in high electrically noisy environments)
OPEN SOURCE DEVELOPER COMMUNITY
[metaslider id=127]
In The Box
WREN-2 ESP8266 Single/Dual Linear Motor Controller
You will need to update the firmware with your preferred open source firmware, using a standard UART (3v3).
- 1 x WREN-2 ESP8266 Board
- SMD (Surface Mounted Components) Populated.
- Fully Tested
- 1 x Set of jumpers (UART and I2C)
Optional Accessories (available separately)
- WREN Enclosure and DIN Cable Kit
- 1 x 5 PIN DIN cable (Male), Open ended
- 1 x 5 PIN DIN cable (Female), Open Ended
- 1 x Quality ABS Enclosure (with cable clamps and crews
Shipping
All products in stock will be posted same day, where possible. Postage is at cost and flat rate, irrespective of order size.
Any product not is stock, which is back-ordered, will be shipped as soon as it becomes available. Notifications are sent automatically.
Should only part of your order be in stock, then we would normally send available item(s), and balance when available. Should you wish to not split the order, please comment to use.
Other Details
Further information on this product may be found in our downloads and Wiki pages. Other technical information and code examples are also shared in our GitHub Pages. Project information may also be found on Hackster.io
We value our customers and should you have any other questions, please feel free to contact us.
All our boards and related products are Designed and Manufactured in Great Britain. This site is a subset of DitroniX.Com
Supporting the engagement, interest and careers of people, of all ages, through the fascinating World of STEM Learning and Amateur Radio & Electronics. DitroniX, planting a seed in Electronics, for our future engineers.
![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
Specification
WREN v2 specification overview:
- Flexible Linear Motor Controller
- Wide Input Voltage Range 9V to 38 DC
- Output Motor Voltage replicates Input Voltage
- Ai-Thinker ESP12S (ESP8266 Series)
- Embedded Firmware
- Integrated 2.4 GHz Antenna
- Supports Development IDE such as Arduino IDE, Platform IO, Eclipse etc.
- Support for Technologies such as MQTT, CloudMQTT, HiveMQ, IFTTT, Mosquitto, Tasmota, Domoticz, Node-Red etc.
- Ports
- UART Flashing Port
- DC Supply Pass-Through
- I2C Expansion Port
- L6205 Dual DMOS Full Brider Driver
- Output Peak Current 5.6A DC
- Two x 5.6A DC RMS channels
- Paralleled Operation (increased current to a single motor)
- Built in Electrical Safety Features
- Sensors
- Digital Temperature Sensor (MCP9808)
- DC Supply Voltage Sensor (ADC)
- Onboard Buck Boost for Regulated 3V3 (Internal Use)
- RGB LED
- Buttons (Tactile)
- Reset
- Programming (Flashing Mode)
Other Points:
- Simple to Fit – Plug and Play (Standard 5 Pin DIN)
- Existing Recliner Manual Button Controls are Unaffected
- Existing Recliner Accessory Devices, such as USB power, is Unaffected
- Voice Control such as via Google Home and Amazon Alexa
- Manual or Remote Control from PC, Phone or Tablet
- No External Power Required (Uses existing 24V, or 29V, DC)
- Controls Single, or Dual, Motor Riser Recliner Chairs
- Safe to Use
- Isolated Controls Input and Motor Output, allowing parallel operation
Comparison
WREN Features and Flexibility | WREN 1 (Consumer Edition) | WREN S2 SDK (Developer Edition) | WREN 12S SDK (Maker Edition) |
---|---|---|---|
Product Type | Complete and ready to connect to your electric reclining chair | Complete SMT PCB, tested and ready for developing software and experimenting | Complete SMT PCB, tested and ready for developing software and experimenting |
Simple to Fit – Plug and Play (Standard 5 Pin DIN) | Yes | Yes, with optional cable | Yes, with optional cable |
Safe to Use. | Yes | Yes | Yes |
Existing Recliner Manual Button Controls are Unaffected | Yes | Yes | Yes |
Connector | 5 Pin DIN Male and Female | 2 x 6 Pin Headers | 2 x 6 Pin Headers |
Voice Control from Google Home and Amazon Alexa | Yes | Developer Controlled | Developer Controlled |
Manual or Remote Control from PC, Phone or Tablet | Yes | Developer Controlled | Developer Controlled |
No External Power Required (Uses existing 24V, or 29V, DC) | Yes | Yes. Input/Output 12V-30V | Yes. Input/Output 12V-30V |
Wifi Remote Control | Yes | Developer Controlled | Developer Controlled |
Voice Control for Home Automation | Yes | Developer Controlled | Developer Controlled |
Controls Single, or Dual, Motor Riser Recliner Chairs | Yes | Developer Controlled | Developer Controlled |
Parallel for Increased Drive Current | No | Developer Controlled | Developer Controlled |
MCU and WiFi Module | Espressif ESP32-S2 | Espressif ESP32-S2 | Ai-Thinker ESP-12S (ESP8266 Family) |
FCC and CE (RED) Approved. WiFi 2.4 GHz | Yes | Yes | Yes |
Isolated Controls Input and Motor Output, allowing parallel operation | Yes | Developer Controlled | Developer Controlled |
Operating Voltage | Input/Output Standard 24V or 29V DC | Input/Output 12V to 30V DC | Input/Output 12V to 30V DC |
Operating Voltage: Min 12V – Max 30V DC | No | Yes | Yes |
Operating Current (Excluding Motors): Max 0.5A | Yes | Yes | Yes |
Idle Current: Approx 50 mA | Yes | Developer Controlled | Developer Controlled |
Sleep Current: Approx 10 uA | No | Developer Controlled | Developer Controlled |
Onboard 3V3 PSU | Yes | Yes | Yes |
Operating Current : Max 2.8A RMS DC (x 2 channels) | Yes | Yes | Yes |
Operating Temperature Range Maximum: -25 ~ 85 °C | Yes | Yes | Yes |
Operating Temperature Range Declared: 0 ~ 40 °C | Yes | Yes | Yes |
Duty Cycle: Typically Duty Cycle 10% Time On in 2 Minutes. | Yes | Developer Controlled | Developer Controlled |
Safety: Thermal Shutdown | Yes | Yes, Developer Controlled | Yes, Developer Controlled |
Safety: Non-dissipative over-current protection | Yes | Yes | Yes |
Safety: Cross Conduction Protection | Yes | Yes | Yes |
Safety: Under Voltage Lockout | Yes | Yes | Yes |
Safety: Integrated Fast Free Wheeling Diodes | Yes | Yes | Yes |
Safety: Isolated DMOS Power Transistors with CMOS and Bi-Polar circuits | Yes | Yes | Yes |
Open Source Developer | No | Yes | Yes |
UART Flashing Port | Yes | Yes | Yes |
USB Flashing Port | No | Yes | No |
USB 5V Power In Port (ESP) | No | Yes | No |
DC Supply Pass-Through | Yes | Yes | Yes |
JTAG Port | No | Yes | No |
I2C Expansion Port | No | Yes | Yes |
SPI Expansion Port | No | Yes | No |
Dual DMOS Full Brider Driver | Yes | Developer Controlled | Developer Controlled |
Digital Temperature Sensor (TMP102) | Yes | Developer Controlled | Developer Controlled |
RGB LED | Yes | Developer Controlled | Developer Controlled |
Reset Button | Yes | Developer Controlled | Developer Controlled |
Programmed | Yes | Developer Controlled | Developer Controlled |
Sealed Enclosure | Yes | No. Enclosure available separately. | No. Enclosure available separately. |
Software Developer Kit | No | Yes | Yes |
Open Source Support | No | Yes | Yes |
Supplied | ![]() Complete, tested and ready to safely DIY install | ![]() In tested software developer kit form, ready for developer and end user use. Enclosure/Cables Optional. | ![]() In tested software developer kit form, ready for developer and end user use. Enclosure/Cables Optional. |
Special Offer Introductory Price | Only £59 (Normally £69) | Only £19.99 (Normally £29.99) | Only £19.99 (Normally £29.99) |
New Product Availability. Back Orders Taken Now. | September/October 2020 | September 2020 | September 2020 |
Add your WREN to the cart now and save from normal price! | ![]() WREN 1 Consumer Edition | ![]() WREN S2 SDK Developer Edition | ![]() WREN 12S SDK Maker Edition |