Temperature Sensors – Hamtech Electronics Technologies

BMP280 Sensor

admin — Thu, 20 Nov 2025 19:51:40 +0000

The BMP280 Sensor is a compact, low-power device capable of measuring atmospheric pressure and temperature with high accuracy. It communicates via I²C or SPI interfaces, making it easy to interface with microcontrollers like Arduino, ESP32, and Raspberry Pi. The sensor is widely used in weather monitoring systems, altimeters, drones, and environmental sensing projects. Its small footprint and low power consumption make it ideal for portable and battery-powered applications.

Key Features

Measures barometric pressure and temperature
High precision and stability
Supports I²C and SPI communication
Low power consumption, suitable for battery-powered applications
Compact and breadboard-friendly design

Specifications

Feature	Details
Operating Voltage	1.8–3.6V DC
Pressure Range	300–1100 hPa
Accuracy	±1 hPa (pressure), ±1°C (temperature)
Interface	I²C, SPI
Current Consumption	≤0.1 mA (typical)
Operating Temperature	-40°C to 85°C
Dimensions	16 × 12 × 1 mm

Applications

Weather stations and environmental monitoring
Altitude detection in drones and RC aircraft
IoT environmental sensing projects
Smart home and agriculture monitoring
Educational and DIY electronics projects

Compatible Boards / Circuits

Arduino (Uno, Nano, Mega)
ESP32 / ESP8266
Raspberry Pi (via I²C/SPI)
Can interface with displays, data loggers, and cloud platforms

BME280 Sensor

admin — Thu, 20 Nov 2025 19:51:40 +0000

The BME280 Sensor is a compact and highly accurate module capable of measuring temperature, humidity, and atmospheric pressure. It communicates via I²C or SPI interfaces, making it easy to integrate with microcontrollers like Arduino, ESP32, and Raspberry Pi. With high precision and low power consumption, it is perfect for IoT weather stations, smart home systems, altitude measurement, and environmental monitoring applications. Its small footprint allows for easy placement in embedded projects.

Key Features

Measures temperature, humidity, and barometric pressure
High precision and low drift
Supports I²C and SPI communication
Low power consumption, suitable for battery-powered applications
Compact and breadboard-friendly design

Specifications

Feature	Details
Operating Voltage	1.8–3.6V DC
Pressure Range	300–1100 hPa
Temperature Range	-40°C to 85°C
Humidity Range	0–100% RH
Accuracy	±1 hPa (pressure), ±1°C (temperature), ±3% RH (humidity)
Interface	I²C, SPI
Current Consumption	≤0.1 mA (typical)
Dimensions	16 × 12 × 1 mm

Applications

Weather stations and environmental monitoring
Smart home and HVAC systems
Altitude measurement for drones and RC aircraft
IoT environmental sensing projects
Educational and DIY electronics projects

Compatible Boards / Circuits

Arduino (Uno, Nano, Mega)
ESP32 / ESP8266
Raspberry Pi (via I²C/SPI)
Can interface with displays, data loggers, and IoT platforms

DS18B20

admin — Mon, 17 Nov 2025 04:00:22 +0000

The DS18B20 is a reliable and easy-to-use digital temperature sensor with ±0.5°C accuracy over the -10°C to +85°C range. Using the 1-Wire protocol, multiple sensors can be connected to a single microcontroller pin, simplifying wiring and reducing hardware complexity.

This sensor is perfect for IoT devices, smart home monitoring, environmental sensing, aquariums, water tanks, and industrial temperature measurement. It comes in several variants: bare sensor (TO-92 package), with waterproof probe, and with protective stainless steel casing for harsh environments.

It supports both parasitic power mode and external power mode, giving flexibility for different applications.

Key Features:

Temperature Range: -55°C to +125°C (-67°F to +257°F)
Accuracy: ±0.5°C from -10°C to +85°C
Communication: 1-Wire interface
Multiple sensors can share a single microcontroller pin
Waterproof / Stainless steel probe options available
Power Supply: 3.0V – 5.5V DC
Operating Current: 750µA (active), 1µA (standby)
Packaging Options: TO-92 / Waterproof probe / Protective stainless steel case