HX710B Air Pressure Sensor 0-40KPa 3.3-5V | Compoden
HX710B Air Pressure Sensor Module (0-40KPa) 3.3V-5V
The HX710B Air Pressure Sensor Module is a precision digital pressure sensor designed for barometric measurements, altitude tracking, and pneumatic control. It integrates a 24-bit HX710B ADC with a piezoresistive sensor, delivering accurate 0-40KPa readings over a 2-wire serial interface. Compatible with 3.3V and 5V microcontrollers, it's a dependable choice for embedded monitoring projects.
Key Specifications
| Specification | Value |
|---|---|
| Chip | HX710B |
| Measurement Range | 0-40 KPa |
| Supply Voltage | 3.3V-5V DC |
| Output Interface | 2-wire serial (CLK, DAT) |
| Resolution | 24-bit |
| Accuracy | ±0.1% FS |
What You Can Build With This
- DIY digital weather station with barometric pressure logging
- RC drone altimeter for altitude hold and terrain following
- Vacuum leak detector for automotive or HVAC diagnostics
- Smart inflation system with pressure feedback for soft robotics
Compatibility
This module works with any 3.3V or 5V microcontroller that supports a GPIO-based serial interface, including Arduino Uno, Nano, Mega, ESP8266, ESP32, and Raspberry Pi Pico. Use the HX710B Arduino library by Olav Kallhovd for hassle-free integration; connect CLK and DAT to any two digital pins and power the board with a stable supply.
Wiring Notes
Connect VCC to 3.3V or 5V (matching your MCU logic level), GND to ground, CLK to a clock-capable digital pin, and DAT to a data pin. No external pull-ups are required, but avoid long wire runs to minimize noise—keep connections under 20 cm if possible.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, it works with all Arduino boards using the HX710B Arduino library. Just wire CLK and DAT to any digital I/O pins and include the library in your sketch.
Does it include tubing or connectors?
The module ships as shown—no tubing or barbed connectors are included. You can solder a small nozzle from your own stock for direct pressure port attachment.
What is the accuracy and drift?
Typical accuracy is ±0.1% of full scale; long-term drift is negligible for most hobbyist applications. For critical measurements, allow a 10-minute warm-up and avoid rapid temperature changes.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items