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M5Stack Chain Encoder (STM32G031)

SKU: M5-U207
Sale price 9,40 €
incl. VAT
excl. VAT
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M5Stack Chain Encoder (STM32G031)

M5Stack Chain Encoder (STM32G031)

9,40 €

The M5Stack Chain Angle is a potentiometer‑based input module in the M5Stack Chain series. As you rotate the knob, the sampling‑terminal voltage changes within a fixed range. After the built‑in MCU performs ADC conversion, it outputs a signal with up to 12‑bit resolution.

It also includes a programmable RGB LED for status indication and interactive feedback. This makes it ideal for HMI interfaces, smart home controls, and motor speed adjustment.

Chain Angle integrates an STM32G031G8U6 MCU and communicates using a UART serial cascade protocol. With two HY2.0‑4P expansion ports, you can easily connect additional Chain‑series modules to build richer and more interactive applications

Features

  • Potentiometer knob input for smooth, precise analog control

  • STM32G031G8U6 core MCU for stable, low‑power processing

  • 1× RGB LED for status indication and interactive feedback

  • UART serial cascade communication protocol for easy multi‑device chaining

  • 2× HY2.0‑4P expansion interfaces to extend additional Chain‑series modules

 

Includes

  • 1 x Chain Angle
  • 1 x Chain Bridge

 

Applications

  • Smart home control — intuitive knob input for lighting, blinds, HVAC, and scene switching

  • Human‑machine interface (HMI) — smooth analog interaction for UI navigation and parameter tuning

  • Volume control — precise adjustment for speakers, audio panels, and multimedia devices

  • Motor speed control — stable analog input for fans, pumps, and small motor systems

 

Specifications

Specification Parameter
MCU STM32G031G8U6
Input Power DC 5V
Communication UART 115200bps@8N1
Interface 2x HY2.0-4P
RGB LED 1x WS2812C
RGB Power On Consumption 21.13mA
Rotation Angle 280° ±10°
Operating Temperature 0 ~ 40°C
Product Size 23.9 x 23.9 x 28.2mm
Product Weight 8.4g
Package Size 138.0 x 93.0 x 26.0mm
Gross Weight 11.7g

 

Learn

Use the Chain Bridge connector to link the main controller Chain DualKey with other Chain‑series input modules. When making the connection, be sure to check the direction:

The triangular arrow must point outward from the main controller (Chain DualKey), exactly as shown in the illustration below.

 

Schematics

Preview

 

PinMap

RGB LED

STM32G031 PA8
WS2812C RGB

Angle

STM32G031 PB0
Angle ADC_Input

UART

STM32G031 PB6 PB7 PA2 PA3
UART1 TXD1 RXD1
UART2 TXD2 RXD2

 

Model Size

 

Softwares

Arduino

Chain Angle Arduino Getting Started Guide

1. General Shipping Information

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  • Please make sure your shipping address is accurate before placing your order. We ship strictly according to the address provided at checkout.
  • In-stock orders are usually dispatched within 1 business day after order confirmation.
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2. Shipping Rates & Options

Shipping rates are calculated based on order value, destination, and available shipping methods. The final available options will be displayed at checkout.

2.1 Germany Domestic Shipping

Shipping Method Order Value Cost Est. Delivery
Deutsche Post €0.00 - €50.00 €4.95 2-4 Business Days
Deutsche Post Over €50.00 Free 2-4 Business Days
DHL Paket
(Faster Delivery)
€0.00 - €50.00 €6.95 1-3 Business Days
DHL Paket
(Faster Delivery)
€50.00 - €100.00 €2.00 1-3 Business Days
DHL Paket
(Faster Delivery)
Over €100.00 Free 1-3 Business Days

2.2 Selected EU Countries / Regions

Available EU shipping destinations are shown at checkout based on your shipping address. For orders shipped to selected EU countries or regions outside Germany, we use FedEx Regional Economy.

Shipping Method Order Value Cost Est. Delivery
FedEx Regional Economy €0.00 - €100.00 €7.95 3-5 Business Days
FedEx Regional Economy Over €100.00 Free 3-5 Business Days

EU orders may be fulfilled from our Munich warehouse or, when applicable, from our Shenzhen warehouse depending on inventory availability. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.

2.3 United States

Region Shipping Method Order Value Cost Est. Delivery
Continental U.S.
(50 States)
USPS Ground Advantage €0.00 - €45.00 €4.95 3-7 Business Days
USPS Ground Advantage Over €45.00 Free 3-7 Business Days
USPS Priority Mail €0.00 - €45.00 €16.95 1-4 Business Days
USPS Priority Mail Over €45.00 €14.95 1-4 Business Days
Non-Continental U.S.
(AK, HI, PR, etc.)
USPS Ground Advantage €0.00 - €60.00 €6.95 5-9 Business Days
USPS Ground Advantage Over €60.00 Free 5-9 Business Days

Non-Continental U.S. regions include Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and U.S. Armed Forces addresses.

2.4 International Destinations Outside the EU

For selected international destinations outside the EU, including Switzerland, the United Kingdom, and Norway, shipping rates are as follows:

Order Amount Shipping Cost
€0.00 - €300.00 €19.95
Over €300.00 Free

For non-EU destinations, import duties, taxes, and customs fees may be charged by the destination country and are the responsibility of the recipient.

3. Warehouses & Fulfillment

Our products may be stored in our Munich, Arlington, and Shenzhen warehouses. The actual shipping warehouse depends on product availability and destination.

3.1 Munich Warehouse

For products stored in our Munich warehouse, we use Deutsche Post or DHL Paket for domestic deliveries within Germany. For selected EU destinations outside Germany, we use FedEx Regional Economy.

3.2 Arlington Warehouse

For products stored in our Arlington warehouse, we use USPS or UPS for deliveries within the United States.

3.3 Shenzhen Warehouse

For pre-order items or products fulfilled directly from our Shenzhen warehouse, we arrange reliable international shipping based on destination and inventory status. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.

4. Inventory, Pre-orders & Split Shipments

  • Inventory Status: Please check the product page for real-time stock information. If an item is out of stock in our local warehouses, it may be marked as “Pre-order”.
  • Pre-order Fulfillment: Pre-order items may be shipped directly from Shenzhen or restocked to a local warehouse first before final delivery.
  • Split Shipments: If your order contains both in-stock and pre-order items, we may ship them separately. No additional shipping fee will be charged for split shipments caused by our fulfillment arrangement.

5. Customs, Taxes & Delivery Issues

5.1 Customs and Taxes

For EU Member States:
Whether shipped from Germany or China, OpenELAB covers applicable import duties and taxes under DDP service where required. Customers in EU member states should not be charged additional import duties or VAT upon delivery.

Important Notice for Non-EU Countries:
For destinations outside the European Union, such as Switzerland, Norway, and the United Kingdom, import duties, taxes, and customs fees may be charged by local authorities upon delivery. These fees are the responsibility of the recipient.

5.2 Damaged, Delayed, or Lost Parcels

Please inspect your parcel upon delivery where possible. If you notice visible damage, please report it to the courier and contact us as soon as possible. This does not affect your statutory consumer rights.

If your parcel is delayed, lost, returned to sender, or the tracking information has not updated for an unusual period of time, please contact us at info@upenelab.com. We will assist you in checking the shipment status with the courier.

5.3 Incorrect Address or Failed Delivery

If a parcel cannot be delivered due to an incorrect or incomplete address provided by the customer, refusal of delivery, or failure to collect the parcel, additional shipping or return costs may apply.

6. VAT

For orders within the EU, VAT is collected at checkout according to the applicable destination rules. No additional VAT should be collected upon delivery for EU member state orders covered under our DDP shipping arrangement.

Customer Reviews

Based on 3 reviews
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K
Kendall Price
M5Stack Chain Encoder (STM32G031): reliable daily performance

After working with M5Stack Chain Encoder (STM32G031) for a while the overall experience felt stable and predictable. The unit feels well made and has performed consistently in normal use.

D
Dakota Hughes
M5Stack Chain Encoder (STM32G031): good overall experience

I added M5Stack Chain Encoder (STM32G031) to a recent project and found the initial setup straightforward. It performs well although a few extra setup notes would improve the experience.

S
Sydney Bell
M5Stack Chain Encoder (STM32G031): solid build quality

The M5Stack Chain Encoder (STM32G031) arrived in good condition and fitted neatly into my existing setup. Integration went smoothly and I have not encountered any significant issues.