The UAV-R121-1 (UART) Front Obstacle Avoidance Radar is a compact and lightweight millimeter-wave radar sensor developed and manufactured by MicroBrain Intelligent. It offers high precision, sensitivity, and stability, making it easy to integrate into various systems. Using 79GHz electromagnetic waves, the sensor sends out a fan-shaped signal to detect obstacles ahead by analyzing the returned signals. It then provides real-time data on the relative distance, speed, and angle of obstacles, helping the drone avoid collisions and ensuring safe operation.
Note: For more technical details go through datasheet in the attachment section
Features:
Detection Angle: The sensor might have a defined detection angle, specifying the breadth of its coverage area.
High Accuracy: Precision is crucial for obstacle avoidance, so the sensor would likely boast high accuracy in detecting obstacles.
Fast Response Time: Rapid response time is essential to quickly maneuver the UAV away from detected obstacles, minimizing the risk of collision.
Compact Size and Lightweight: To minimize the impact on the UAV’s overall weight and aerodynamics, the sensor would likely be designed to be compact and lightweight.
Low Power Consumption: Efficiency is key, so the sensor might be designed to consume minimal power, extending the UAV’s flight time.
Specification
Model Type
Front Avoidance Radar Sensor
Distance Measuring Range(M)
1.5 to 120
Antenna Azimuth
±15°
Antenna Elevation
-5°~+3°
Antenna EIRP
30
Frequency(GHz)
79
Package Includes:
1 x Front Obstacle Avoidance Radar Sensor (UAV-R121-1) UART
The Front Obstacle Avoidance Radar Sensor (UAV-R121-1) UART is a versatile radar sensor used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
Integrating into a custom electronics project
Learning and experimenting with circuits
Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
Free shipping on orders above ₹999 across India
Dispatched within 1-3 business days
Expected delivery: 3-7 business days depending on location
Secure packaging to ensure safe transit of electronic components
Genuine Microbrain Intelligent product sourced from authorized channels
Weight
0.17 kg
Country Of Origin: China
21 reviews for Front Obstacle Avoidance Radar Sensor (UAV-R121-1) UART
Rated 5 out of 5
Rohan Khanna (verified owner)–
Great Front Obstacle Avoidance Radar Sensor UART. Using it in my smart agriculture system. Reliable measurements every time.
Rated 5 out of 5
Harsh Tiwari –
This Front Obstacle Avoidance Radar Sensor UART is excellent for the price. My data logging project is working perfectly now.
Rated 4 out of 5
Nitin Shah (verified owner)–
Good Front Obstacle Avoidance Radar Sensor UART. Works as described. Calibration needed some patience but results are good.
Rated 5 out of 5
Shruti Negi –
Perfect for my weather station. This Front Obstacle Avoidance Radar Sensor UART gives consistent readings day and night.
Rated 5 out of 5
Anjali Mishra (verified owner)–
Love this Front Obstacle Avoidance Radar Sensor UART. Response time is fast and readings are stable.
Rated 3 out of 5
Tanvi Garg –
Okay Front Obstacle Avoidance Radar Sensor UART. Had to add a capacitor to stabilize readings. Works now.
Rated 5 out of 5
Yogesh Khanna (verified owner)–
Outstanding accuracy from this Front Obstacle Avoidance Radar Sensor UART. Compared with a professional instrument, readings match closely.
Rated 5 out of 5
Yogesh Gill (verified owner)–
Superb Front Obstacle Avoidance Radar Sensor UART! Using it in my environmental monitoring system. Very reliable data.
Rated 3 out of 5
Rakesh Iyer (verified owner)–
Average Front Obstacle Avoidance Radar Sensor UART. Readings fluctuate a bit. Works for rough measurements.
Rated 5 out of 5
Meera Menon (verified owner)–
This Front Obstacle Avoidance Radar Sensor UART works great with Arduino. Easy to wire up and code.
Rated 5 out of 5
Urmi Kamath (verified owner)–
Excellent Front Obstacle Avoidance Radar Sensor UART! Readings are accurate and consistent. Perfect for my project.
Rated 4 out of 5
Kapil Malhotra –
Pretty good Front Obstacle Avoidance Radar Sensor UART. Documentation could be better but the sensor itself is solid.
Rated 5 out of 5
Neeraj Mehta (verified owner)–
Excellent sensitivity and range on this Front Obstacle Avoidance Radar Sensor UART. Works better than I expected.
Rated 5 out of 5
Tanvi Singh (verified owner)–
Great quality Front Obstacle Avoidance Radar Sensor UART. Calibrated it easily and the accuracy is impressive.
Rated 5 out of 5
Pooja Gupta (verified owner)–
Perfect Front Obstacle Avoidance Radar Sensor UART for my automation project. Integrates seamlessly with my microcontroller.
Rated 5 out of 5
Vipin Choudhury (verified owner)–
This Front Obstacle Avoidance Radar Sensor UART is excellent for the price. My data logging project is working perfectly now.
Rated 4 out of 5
Advik Mukherjee (verified owner)–
Decent Front Obstacle Avoidance Radar Sensor UART for the price. Requires proper wiring but works well once set up.
Rated 5 out of 5
Nitin Trivedi (verified owner)–
Very satisfied with this Front Obstacle Avoidance Radar Sensor UART. Library support is good and it’s easy to interface.
Rated 5 out of 5
Sandeep Bose (verified owner)–
This Front Obstacle Avoidance Radar Sensor UART is excellent for the price. My data logging project is working perfectly now.
Rated 5 out of 5
Anushka Gupta (verified owner)–
Perfect for my weather station. This Front Obstacle Avoidance Radar Sensor UART gives consistent readings day and night.
Rated 4 out of 5
Anjali Solanki (verified owner)–
Good Front Obstacle Avoidance Radar Sensor UART. Works as described. Calibration needed some patience but results are good.
Only logged in customers who have purchased this product may leave a review.
Rohan Khanna (verified owner) –
Great Front Obstacle Avoidance Radar Sensor UART. Using it in my smart agriculture system. Reliable measurements every time.
Harsh Tiwari –
This Front Obstacle Avoidance Radar Sensor UART is excellent for the price. My data logging project is working perfectly now.
Nitin Shah (verified owner) –
Good Front Obstacle Avoidance Radar Sensor UART. Works as described. Calibration needed some patience but results are good.
Shruti Negi –
Perfect for my weather station. This Front Obstacle Avoidance Radar Sensor UART gives consistent readings day and night.
Anjali Mishra (verified owner) –
Love this Front Obstacle Avoidance Radar Sensor UART. Response time is fast and readings are stable.
Tanvi Garg –
Okay Front Obstacle Avoidance Radar Sensor UART. Had to add a capacitor to stabilize readings. Works now.
Yogesh Khanna (verified owner) –
Outstanding accuracy from this Front Obstacle Avoidance Radar Sensor UART. Compared with a professional instrument, readings match closely.
Yogesh Gill (verified owner) –
Superb Front Obstacle Avoidance Radar Sensor UART! Using it in my environmental monitoring system. Very reliable data.
Rakesh Iyer (verified owner) –
Average Front Obstacle Avoidance Radar Sensor UART. Readings fluctuate a bit. Works for rough measurements.
Meera Menon (verified owner) –
This Front Obstacle Avoidance Radar Sensor UART works great with Arduino. Easy to wire up and code.
Urmi Kamath (verified owner) –
Excellent Front Obstacle Avoidance Radar Sensor UART! Readings are accurate and consistent. Perfect for my project.
Kapil Malhotra –
Pretty good Front Obstacle Avoidance Radar Sensor UART. Documentation could be better but the sensor itself is solid.
Neeraj Mehta (verified owner) –
Excellent sensitivity and range on this Front Obstacle Avoidance Radar Sensor UART. Works better than I expected.
Tanvi Singh (verified owner) –
Great quality Front Obstacle Avoidance Radar Sensor UART. Calibrated it easily and the accuracy is impressive.
Pooja Gupta (verified owner) –
Perfect Front Obstacle Avoidance Radar Sensor UART for my automation project. Integrates seamlessly with my microcontroller.
Vipin Choudhury (verified owner) –
This Front Obstacle Avoidance Radar Sensor UART is excellent for the price. My data logging project is working perfectly now.
Advik Mukherjee (verified owner) –
Decent Front Obstacle Avoidance Radar Sensor UART for the price. Requires proper wiring but works well once set up.
Nitin Trivedi (verified owner) –
Very satisfied with this Front Obstacle Avoidance Radar Sensor UART. Library support is good and it’s easy to interface.
Sandeep Bose (verified owner) –
This Front Obstacle Avoidance Radar Sensor UART is excellent for the price. My data logging project is working perfectly now.
Anushka Gupta (verified owner) –
Perfect for my weather station. This Front Obstacle Avoidance Radar Sensor UART gives consistent readings day and night.
Anjali Solanki (verified owner) –
Good Front Obstacle Avoidance Radar Sensor UART. Works as described. Calibration needed some patience but results are good.