Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Model | LM75BD / LM75AD |
| Interface Type | I2C (Inter-Integrated Circuit) |
| Operating Voltage | 2.7V to 5.5V |
| Temperature Range | -55°C to +125°C |
| Accuracy | ±2°C (typical) |
| Resolution | 9-bit to 12-bit configurable |
| Conversion Time | Max 150ms at 12-bit |
| Package Type | SOIC-8 on Breakout Board |
| Pin Count | 5 Pins (VCC, GND, SDA, SCL, ALERT) |
| Application | Embedded Systems, HVAC, Industrial Monitoring |
Anonymous
Mar 31, 2026
Rating: 5/5
Great for Home Automation
Integrated this with my ESP32 home server. The low power consumption and accurate readings make it ideal for monitoring server room temperatures. Very satisfied.
Anonymous
Mar 29, 2026
Rating: 5/5
Consistent Performance
We ordered ten of these for our student robotics kits. All units worked out of the box with uniform calibration. Excellent value for educational purposes.
Anonymous
Mar 27, 2026
Rating: 4/5
Solid sensor, clear documentation needed
The hardware is excellent, but I had to look up the datasheet online for the register map as the included paper was minimal. Once configured, it reads temperature very quickly.
Anonymous
Mar 26, 2026
Rating: 5/5
Reliable and Compact
Great little sensor board. It fits perfectly into tight spaces in my enclosure. The alert pin feature is very useful for setting over-temperature thresholds without constant polling.
Anonymous
Mar 15, 2026
Rating: 5/5
Perfect for Arduino Projects
This LM75 module works flawlessly with my Arduino Uno. The I2C communication is stable, and the temperature readings are consistent with my calibrated thermometer. Highly recommended for hobbyists.
Anonymous
Mar 11, 2026
Rating: 4/5
Good precision, easy to integrate
Used this for a custom PCB prototype. The high-speed I2C interface performed well up to 400kHz. Only minor issue was the silkscreen labeling being slightly faint, but functionality is top-notch.
Q: What is the default I2C address for this sensor?
A: The default I2C address is 0x48. You can change the address by connecting the A0, A1, and A2 pins to VCC or GND if your specific chip variant supports address selection pins exposed on the board.
Q: How do I configure the resolution of the temperature reading?
A: Resolution is configured via the Configuration Register. You can set it to 9, 10, 11, or 12 bits. Higher resolution increases accuracy but also increases conversion time.
Q: Is the ALERT pin active high or active low?
A: The ALERT pin behavior is configurable in the configuration register. By default, it is often set to active low, but you can program it to be active high depending on your system requirements.
Q: Can this sensor operate at 3.3V logic levels?
A: Absolutely. The LM75 operates from 2.7V to 5.5V, so it is fully compatible with 3.3V microcontrollers like the ESP32 and Raspberry Pi.
Q: Does this module come with pull-up resistors for the I2C lines?
A: Yes, the breakout board includes 4.7kΩ pull-up resistors on both SDA and SCL lines, making it ready to use without external components.
Youzhao Pai Creative Retro 3D Embossed House Number Plate – Custom Door Signs for Villas, Commercial Spaces, and Homes
$200.00
Tianzheng DZ15LE-100/3N901T 100A Transparent Leakage Circuit Breaker, Molded Case Circuit Breaker 3901T 63A
$278.00
![[Daimai Holds Micro-Needle Hair Transplant Patent] Little Red Cap Hydro Glow | Scalp Hydration and Repair](https://www.gosteppe.com/cache/small/product/270424/legacy-main-ecbdc6ee4688639f4a8ef150.webp)
[Daimai Holds Micro-Needle Hair Transplant Patent] Little Red Cap Hydro Glow | Scalp Hydration and Repair
$880.00
Pelican Rolling Case pelican1560 - Waterproof Shockproof Safety Case for Photography Equipment and Instruments
$1,550.00
Disipulai Hot Air Circulation Vertical Food Warmer Display Cabinet - Adjustable Temperature Countertop Cooked Food Warming Equipment
$2,023.00
Complete Pasteurization Production Line for Pomegranate, Grape, Orange, Apple Juice, and Mare's Milk
$6,048.00
Portable Tire Stone Removal Tool - Essential Handheld Hook for Car Owners
$13.73
Factory Direct Longan 160 Curved Hot Stamping Machine Fully Automatic Hot Foil Printer Pneumatic Heat Press Leather Embossing Machine
$10,000.00
Bean Sprout Germinator Tray, Hydroponic Vegetable Growing Container, Soil-Free Pea Sprouting Pot
$14.06
TOPTOY Crayon Shin-chan Memory Echo Series Blind Box - Anime Figure Collectible Toy and Birthday Gift
$47.20
Natural Lightning Cat's Eye Yellow Tiger Eye Loose Beads, Single Crystal Beads for DIY Bracelets and Accessories
$3.91
Pirelli Tire 235/55R19, Original Equipment for Mercedes-Benz GLC, Genuine Tire Compatible with Audi/Land Rover/etc.
$512.00
Biliansheng Hair Transplant: No-Shave Hairline Restoration, Top Thinning Density Enhancement, Nationwide Chain
$9,999.00
Luru Authentic 15-Note Steel Tongue Drum - Professional Grade for Beginners, Adults, and Children
$500.00
![MOOCAT [Postage Stamp Stub] Hand-Drawn Blank Irregular Wood Pulp Fine-Texture Paper for Cyanotype, OC Signing, and Collage](https://www.gosteppe.com/cache/small/product/270412/legacy-main-3037a70329c5379f7064bc16.webp)
MOOCAT [Postage Stamp Stub] Hand-Drawn Blank Irregular Wood Pulp Fine-Texture Paper for Cyanotype, OC Signing, and Collage
$9.90
Used Car Tires - Sizes 155/165/175/185/195/205/215 for 13/14/15/16 inch Rims
$140.00
Pin Puller Extractor Mechanical Repair Tool Bearing Puller and Locating Pin Extractor
$76.50
Water Brush Pen Set with Large Capacity - Essential Tools for Beginners Using Gouache, Solid Watercolor Paints, and Line Drawing; Perfect for Art Students
$32.00
C9335 Automotive Brake Disc Lathe – Resurfacing, Boring, Grinding & Polishing Machine
$16,005.00
Jaguar Tire Lug Nuts Compatible with XE/XF/XJL/F-TYPE/F-PACE - Wheel Hub Screw Caps for Modification
$118.00
Three-Hook Tire Stone Removal Tool, Wheel Groove Cleaner for Removing Stones from Vehicle Tires
$4.80
Pad Printer Accessories: 4-Inch Blade Clamp, Blade Holder, and Doctor Blade Assembly
$5.40
3M Industrial Scouring Pad 7447C, Metal Rust Removal, Stainless Steel Brushing and Polishing Cloth
$4.00
Qinghe Blazing Rose Series
$1,580.00
Cheddar Cheese Production Line, Front-End Processing and Deep Processing Machinery, Mozzarella Cheese Equipment
$25,480.00
MGQ Konjac Noodle Bubble Cleaning Machine, Fully Automatic Soaking and Lifting Washer
$17,555.40
Industrial Large Meat Grinder Fresh Meat Mince Chopper Fruit Vegetable Crusher Meat Grinding and Mixing Integrated Meat Filling Mixer
$32,030.00
Zhuolide D-302 UV Glue - Invisible Adhesive for Transparent Glass, Metal, Coffee Tables, and Crystal Glass, 250g Large Capacity
$130.00
Hell Training Rock Guitar by Shinichi Kobayashi: Electric Guitar Tutorial for Speed Playing
$106.00
![[Buy One Get One Free] Natural Agarwood, Sandalwood, and Cypress Incense Powder Set with Electric Burner](https://www.gosteppe.com/cache/small/product/270397/legacy-main-04181167165316608773b986.webp)
[Buy One Get One Free] Natural Agarwood, Sandalwood, and Cypress Incense Powder Set with Electric Burner
$8.42
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
