SEN-KY039HS - Uncategorized Joy-It - Free user manual and instructions
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| Product Type | Heartbeat Sensor Module |
| Model | SEN-KY039HS |
| Brand | Joy-It |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Analog (pulse wave) or Digital (heartbeat detection) |
| Detection Method | Photoplethysmography (PPG) |
| Dimensions | Approx. 28mm x 20mm x 10mm |
| Weight | Approx. 3g |
| Pin Count | 3 pins (VCC, GND, Signal) |
| Connector Type | Male pin headers (2.54mm pitch) |
| Compatibility | Arduino, Raspberry Pi, STM32, etc. |
| Operating Temperature | -20°C to +85°C |
| Sampling Rate | Up to 100 Hz (analog read dependent on ADC) |
| Maintenance | Wipe with dry cloth; avoid moisture and dust |
| Safety | Low voltage (safe for human contact) |
| Spare Parts / Repairability | Not user-serviceable; replace module if faulty |
| Package Content | 1x Heartbeat Sensor Module, 1x Pin Header Set |
Frequently Asked Questions - SEN-KY039HS Joy-It
How do I connect the SEN-KY039HS to an Arduino?
Connect VCC to 5V (or 3.3V), GND to GND, and the signal pin to an analog input (e.g., A0). Optionally, use a digital pin for the D output (if present).
What is the difference between analog and digital output?
The analog output provides a continuous waveform corresponding to the pulse, while the digital output toggles high/low each time a heartbeat is detected. Use analog for detailed waveform analysis and digital for simple beat counting.
Can I use this sensor with a Raspberry Pi?
Yes, connect VCC to 3.3V (not 5V!), GND to GND, and signal to an ADC pin (e.g., MCP3008) or use a digital GPIO if using the digital output.
Why is my sensor not detecting heartbeats?
Ensure proper contact with the skin (finger tip) and stable power. Adjust the threshold in code for digital output, or check analog waveform for noise. Avoid movement.
What is the typical code to read heart rate?
For Arduino: read analog pin, detect peaks above a threshold, calculate BPM by timing intervals. Libraries like 'PulseSensor' simplify this.
Is the sensor waterproof?
No, it is not waterproof. Keep dry and avoid contact with liquids.
What is the maximum cable length I can use?
For reliable signals, keep wires under 50cm. Longer cables may introduce noise; use shielded wires if needed.
Can I power it with 3.3V?
Yes, the sensor works at 3.3V, but the signal amplitude will be lower. In that case, use 3.3V logic for the microcontroller.
How do I clean the sensor?
Gently wipe the sensor surface with a soft, dry cloth. Do not use water or solvents.
Does it come with a cable?
No, cables are not included. You need separate jumper wires or a connector.
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USER MANUAL SEN-KY039HS Joy-It
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Product information
Brand : Joy-It
Model : SEN-KY039HS
Category : Uncategorized