Consumer Electronics

Waveshare MQ-135 Gas Sensor

Overview
Sensitive for benzene, alcohol, smoke
Output voltage boosts along with the concentration of the measured gases increases
Fast response and recovery
Adjustable sensitivity
Signal output indicator
Power: 2.5V ~ 5.0V
Dimension: 40.0mm * 21.0mm

C$15.00 C$18.61

Overview
Sensitive for alcohol, ethanol
Output voltage boosts along with the concentration of the measured gases increases
Fast response and recovery
Adjustable sensitivity
Signal output indicator
Power: 2.5V ~ 5.0V
Dimension: 40.0mm * 21.0mm

C$13.67 C$16.81

UART Fingerprint Reader, onboard processor STM32F205, commercial fingerprinting algorithm, optical sensor
Overview
UART Fingerprint Reader is a fingerprinting module designed for secondary development, high-speed for identification, high stability. It is an intelligent module that provides functionalities like fingerprint recording, image processing, feature extraction, template generation, template storage, fingerprint matching and searching, etc.
Features
1. Onboard high-speed processor STM32F205
Commercial fingerprinting algorithm, faster identification
High-accuracy optical sensor, standard 16-pin interface, allows users to choose optical/semiconductor sensors
Divided structure: fingerprint sensor + processing circuit + algorithm platform

C$90.66 C$107.88

C$23.09 C$28.64

Features
1.Pixels: 5 megapixel
Resolution: 2592x1944
Sensor: OV5640
3.1 1.4um x 1.4um pixel with OmniBSI technology, high sensitivity, low crosstalk, low noise
3.2 Automatic image control functions: AEC, AWB, ABF, ABLC, etc.
3.3 Image quality controls: color saturation, hue, gamma, sharpness, lens correction, etc.
3.4 Supports image scaling, panning, windowing, etc.

C$31.96 C$38.68

Camera Module Based on OV5640 Image Sensor, 5 Megapixel (2592x1944), Auto Focusing with Onboard Flash LED
Features
1. Pixels: 5 megapixel
Resolution: 2592x1944
Auto focusing by detecting the object distance
Onboard flash LED, allowed to take pictures in the dark
Sensor: OV5640
1.4um x 1.4um pixel with OmniBSI technology, high sensitivity, low crosstalk, low noise

C$40.22 C$47.46

C$41.59 C$51.57

Raspberry Pi Camera, supports only Raspberry Pi Zero V1.3 and Raspberry Pi Zero W
5 megapixel OV5647 sensor
Camera specifications
CCD size : 1/4inch
Focal Length : 3.51mm
Angle of View (diagonal) : 69.1 degree
Sensor best resolution : 1080p
2592 1944 still picture resolution

C$24.25 C$28.62

C$38.08 C$44.94

Raspberry Pi Camera, supports all revisions of the Pi
Fisheye Lens, offers wider field of view
5 megapixel OV5647 sensor
Adjustable focus distance
Camera specifications
CCD size : 1/4inch
Focal Length : 0.87mm
Angle of View (diagonal) : 200 degree (while other normal cameras are typically 72 degree)

C$43.54 C$51.37