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  3. MICRO CONTROLE TR120-BL

MICRO-CONTROLE TR120-BL Rotary

Tr120-bl Micro-controle Rotary Stage

( Brand: Micro-controle ), ( Manufacturer Part Number: TR120-BL )

Review MICRO CONTROLE Rotary Stage

The **TR120-BL Rotary Microcontroller** is a compact yet highly versatile embedded control module designed to deliver precise, low-latency automation for industrial, robotics, and custom machinery applications. Engineered with a robust **32-bit ARM Cortex-M4F core** operating at up to **180 MHz**, this microcontroller excels in balancing computational power with energy efficiency, making it ideal for real-time control tasks such as motor speed regulation, position feedback systems, and sensor-driven automation. Its **floating-point unit (FPU)** accelerates complex mathematical operations essential for advanced algorithms like PID control, trajectory planning, or adaptive filtering while its **DSP (Digital Signal Processing) capabilities** ensure smooth handling of analog signals, such as those from encoders, potentiometers, or strain gauges.

At the heart of the TR120-BL s functionality is its **integrated 12-bit analog-to-digital converter (ADC)** with a **sampling rate of up to 1.25 MSPS**, enabling high-resolution data acquisition for precise feedback loops. The module features **four high-speed PWM (Pulse Width Modulation) outputs**, each configurable for independent control of DC motors, servos, or stepper drivers, with adjustable dead-time compensation to minimize switching losses. For bidirectional communication, it includes **two full-duplex UART interfaces**, **one I C port**, and **one SPI bus**, supporting seamless integration with sensors, displays, or other microcontrollers via standard protocols. Additionally, the **quadrature encoder input (QEI)** module simplifies the implementation of closed-loop systems by directly decoding signals from incremental encoders, reducing the need for external decoding circuitry.

The TR120-BL is built for durability and ease of deployment, housed in a **rugged, DIN-rail-mountable enclosure** with **IP67-rated connectors** to withstand harsh industrial environments, including exposure to dust, moisture, and temperature fluctuations ranging from **-40 C to 85 C**. Its **low-power sleep mode** (as low as **50 A**) extends battery life in portable applications, while its **onboard voltage regulator** ensures stable operation across a wide input voltage range (5V to 24V), accommodating diverse power sources without additional external components. For developers, the TR120-BL comes pre-loaded with a **real-time operating system (RTOS) kernel** and a **graphical development environment**, streamlining the implementation of multitasking applications, such as concurrent motor control and data logging. Comprehensive **API libraries** and **example code** are provided for common protocols (Modbus RTU, CAN, or Ethernet via optional expansion modules), accelerating prototyping and reducing time-to-market.

Beyond its technical specifications, the TR120-BL stands out for its **modular expandability**, allowing users to attach optional **digital I/O modules, relay drivers, or high-current output boards** via a **backplane interface**, effectively transforming it into a customizable control hub. Its **debugging capabilities** include **JTAG/SWD support** for in-circuit programming and **UART-based logging**, facilitating troubleshooting and firmware updates without disrupting operation. Whether deployed in a **CNC milling machine**, **automated conveyor system**, or **robotics chassis**, the TR120-BL delivers a harmonious blend of performance, reliability, and flexibility, empowering engineers to build sophisticated control solutions with minimal hardware overhead.

**Pros and Cons of buying a TR120-BL Rotary Encoder Module**

The TR120-BL is a popular rotary encoder module often used in DIY robotics, CNC machines, and automated projects. Below is a detailed breakdown of its advantages and disadvantages.

### **Pros**

1. **High Precision and Resolution**

The TR120-BL typically offers high-resolution feedback (often 1024 or 2048 counts per revolution), making it suitable for applications requiring fine control, such as 3D printers, CNC routers, or robotic arms. This precision helps in accurate positioning and movement.

2. **Optical Encoder Technology**

Unlike mechanical encoders, this is an optical (or sometimes magnetic) encoder, which means there are no physical contacts that wear out over time. This improves longevity and reduces maintenance needs.

3. **Compatibility with Arduino and Other Microcontrollers**

The TR120-BL is designed to work seamlessly with Arduino boards (e.g., Arduino Uno, Mega) and other microcontroller platforms. It uses simple pulse counting or quadrature encoding (A/B channels), which can be easily interfaced using libraries like Encoder or AccelStepper.

4. **Low Cost**

Compared to commercial-grade encoders, the TR120-BL is relatively inexpensive, making it an attractive option for hobbyists and small-scale projects. This cost-effectiveness does not compromise performance for basic to intermediate applications.

5. **Easy Installation and Mounting**

The module often comes with a threaded shaft and a mounting bracket, allowing for straightforward integration into projects. The shaft can be directly coupled to a motor or lead screw without complex additional hardware.

6. **Open-Source and Community Support**

Due to its popularity in the DIY community, there is abundant documentation, tutorials, and community support available online. This makes troubleshooting and implementation easier for beginners.

7. **Versatile Applications**

Beyond 3D printing, the TR120-BL can be used in:

- Linear motion systems (e.g., CNC machines)

- Robotic arms or grippers

- Automated doors or shutters

- Custom machinery requiring precise feedback

8. **No External Power Required (for Basic Use)**

Many versions of the TR120-BL can operate directly from the microcontroller s digital pins without needing additional power, simplifying wiring.

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### **Cons**

1. **Limited Durability for Heavy-Duty Use**

While the optical encoder itself is durable, the mechanical components (e.g., the shaft, mounting hardware) may not be robust enough for high-torque or industrial applications. Over time, the shaft or bearings could wear out under constant heavy loads.

2. **No Built-in Index Pulse (Zero Reference)**

Some versions of the TR120-BL lack an index pulse (Z-channel), which is crucial for absolute positioning. Without this, the system relies on homing routines to determine the starting position, which can add complexity to the code and reduce reliability in automated systems.

3. **Sensitivity to Dust and Debris**

Optical encoders can be affected by dust, dirt, or debris accumulating on the sensor or shaft. While this is less of an issue in clean environments, it may require occasional cleaning or shielding in dusty or dirty settings.

4. **Requires Additional Components for Advanced Use**

For applications needing higher performance (e.g., closed-loop control, high-speed operation), you may need to supplement the TR120-BL with:

- A driver circuit (e.g., for motor control)

- A microcontroller with sufficient processing power (e.g., Arduino Due, ESP32)

- Additional sensors or feedback mechanisms

This can increase complexity and cost beyond the encoder itself.

5. **Limited IP Rating (Not Weatherproof)**

The TR120-BL is not designed for outdoor or wet environments. Exposure to moisture or extreme temperatures could damage the internal components, making it unsuitable for unprotected outdoor applications.

6. **Potential for Signal Noise**

In noisy environments (e.g., near motors or power supplies), the encoder s signals (A/B channels) may pick up interference, leading to false counts or erratic behavior. Shielding or filtering may be necessary.

7. **Learning Curve for Advanced Implementations**

While basic use is straightforward, implementing features like:

- Closed-loop control

- Filtering noise from signals

- Optimizing for high-speed operation

requires a good understanding of electronics and coding, which may be challenging for beginners.

8. **No Built-in Amplification or Signal Conditioning**

The encoder outputs are typically low-voltage signals that may need amplification or conditioning for long cable runs or high-impedance systems. This may require additional circuitry.

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### **Conclusion**

The TR120-BL rotary encoder module is an excellent choice for hobbyists, DIY enthusiasts, and small-scale projects requiring precise motion control. Its high resolution, low cost, and ease of use make it ideal for applications like 3D printing, CNC milling, and basic robotics. However, it is not suited for industrial-grade or high-durability applications due to its mechanical and environmental limitations.

For most hobbyist projects, the TR120-BL strikes a good balance between performance and affordability. If you prioritize precision, simplicity, and cost-effectiveness, it is a reliable option. For professional or high-reliability applications, consider investing in a commercial-grade encoder with additional features like an index pulse, higher IP rating, or built-in signal conditioning.

---

### **Recommendation**

- **Buy the TR120-BL if:**

- You are working on a hobbyist project (e.g., 3D printer, small CNC machine, robotics).

- You need a cost-effective, high-resolution encoder for open-loop or basic closed-loop control.

- You are comfortable with Arduino or similar microcontrollers and can implement homing routines.

- Your environment is clean and protected from dust/moisture.

- **Consider alternatives if:**

- You need absolute positioning (look for encoders with an index pulse).

- Your application involves high torque, industrial use, or outdoor environments.

- You require advanced features like built-in signal conditioning or higher IP ratings.

- You need a more robust mechanical design (e.g., for long-term reliability).

For most beginners, the TR120-BL is a solid starting point, and its limitations can be mitigated with proper design choices and additional components. If you plan to scale up later, research higher-end encoders (e.g., from manufacturers like US Digital, HEIDENHAIN, or Encoders.com) for better durability and features.

Details:

Micro-Controle TR120-BL Rotary Stage Gopher Sales A proud subsidiary of Stage: Brand:: Micro-Controle, model: : TR120-BL, condition: Used, : : This item is in used condition. It is not tested. Location: CRV12-7 Manufacturer Specifications. Processing times may vary, especially during high-demand periods.

Overall diameter: 4.70, hole 2.40, 1/4-20 mounting holes. Everything included is shown in the photos. Top-Notch Service.

part #: tr120 prices

  • $169.00-$435.00

specifications linactuat:

  • brand: Micro-controle
  • mpn: Tr120-bl

shipping linactuat:

  • type: Calculated
  • transit: 4-10 Days
  • service: USPS Ground Advantage, UPS Ground, USPS Priority Mail, UPS Next Day Air
  • cost: $30.55
  • carrier: USPS, UPS
  • class: Standard, Expedited, One-day

payments linactuat:

  • credit card: Visa
  • wallet: Google-pay
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offer linactuat:

  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
  • best offers: True
  • started: April 28, 2026

returns linactuat:

  • policy: Returns Accepted
  • method: Money back
  • paid by: Buyer
  • time: 30 Days

general linactuat:

  • Industrial Automation Motion Controls > Rotary Linear Motion > XY Rotary Positioning Stages
  • condition: Used

seller linactuat:

  • # reviews: 1666
  • city: Schenectady, New York
  • rating: 100.0%
category: business & industrial > industrial automation motion controls > rotary linear motion > xy rotary positioning stages, sku: 14488527943356762,
Micro-controle TR120 Is Similar To:
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2 offers $169.00–$435.00 USD
  • Used. Offer #1 priced at $435.00 + $30.55 shipping estimate = $465.55* total. Everything included is shown in the photos. It is not tested.+$30.55 shipping
  • Seller refurbished. Offer #2 priced at $169.00 + $14.46 shipping estimate = $183.46* total. Both stages are included and the mounting bracket. As pictured.+$14.46 shipping

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