Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Chip Model	AD8232
Operating Voltage	3.3V - 5V DC
Interface Type	Analog Output / Digital GPIO
Compatibility	Arduino, STM32, ESP32, Raspberry Pi
Signal Gain	Configurable via external resistors
Lead Off Detection	Yes, integrated
Filter Type	Integrated High-pass and Low-pass filters
PCB Dimensions	24mm x 18mm
Application	Heart rate monitoring, Fitness sensors, Portable ECG
Package Includes	1x AD8232 Module, 1x Header Pin Set

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Clean analog output

The built-in filtering does a great job removing baseline wander. I didn't need to add many external components to get a readable signal on my oscilloscope.

Anonymous

Mar 15, 2026

Rating: 5/5

Perfect for Arduino Projects

This module works flawlessly with my Arduino Uno. The signal quality is surprisingly good for the price point. I was able to visualize a clear heartbeat waveform within minutes of connecting it.

Anonymous

Mar 14, 2026

Rating: 4/5

Good but requires 3.3V logic ideally

Works well, but I noticed less noise when running it at 3.3V compared to 5V. Make sure your microcontroller supports the voltage level you choose. Overall a solid purchase.

Anonymous

Mar 13, 2026

Rating: 4/5

Great value, needs careful wiring

The sensor itself is excellent. However, beginners should be careful with the electrode connections; loose wires cause a lot of noise. Once secured properly, the data is very stable.

Anonymous

Mar 09, 2026

Rating: 5/5

Excellent for prototyping

I used this for a university biomedical project. The lead-off detection feature is very handy to ensure good contact before recording. Highly recommended for students and hobbyists.

Anonymous

Mar 02, 2026

Rating: 5/5

Fast shipping and works as described

Arrived quickly and was well packaged. The pinout is clearly labeled on the board. I got it working with an ESP32 immediately using a library found online.

5 FAQ

Q: Does this module come with the electrode patches?

A: No, this listing includes only the AD8232 circuit board and header pins. Electrode patches and connecting cables must be purchased separately.

Q: Can I connect this directly to a 5V Arduino Nano?

A: Yes, the module operates between 3.3V and 5V. You can connect VCC to the 5V pin on your Arduino Nano, but ensure your signal reading pin is compatible.

Q: Is there a library available for STM32?

A: While we do not provide a proprietary library, the AD8232 outputs a standard analog signal. Many open-source STM32 libraries exist on GitHub that can read the analog pin and process the data.

Q: What is the sampling rate capability of this sensor?

A: The sampling rate depends on your microcontroller's ADC speed and code efficiency, not the sensor itself. The AD8232 bandwidth is typically configured for human heart rates (0.5Hz to 40Hz).

Q: How many electrodes does this support?

A: The AD8232 is designed for a 3-lead configuration (Right Arm, Left Arm, Right Leg), which is standard for basic heart rate monitoring and single-lead ECG acquisition.

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