Speaking of the Raspberry School, I believe everyone is not stranger. Now it is a veteran figure in a single board computer. Various gameplay, all kinds of DIY layout, although it is very tossing, it is very fucking, but it is fun. In the past, the love board also released the raspberry sent tutorial in the first time. With the update of electronic products, the Raspberry Pie is already a "end" product, but still there is a cross. The classics of the times. And with the "Raspberry Drop", the corresponding accessories are getting more and more rich. Recently, the pavement network has received a set of RS-sending Raspberry and supporting camera modules, the Raspberry Part is still that piece. Raspberry Pie, but the camera's supporting module can not be "simple", I believe that even the hike fans of the Raspberry Party have never played.
Raspberry Piece "Gift Pack"
Disassemble the package, it is six small boxes in front of you. Don't be like this simple think there will be a lot of things. After you open it, you will find something wrong. I don't give you a break in this, and I will have all things directly.
Raspberry Piece Accessories
Looking at many accessories, it is actually really used as a camera function, and things include:
A Raspberry Pista board card plus a 8GB SD card with a variety of operating systems
A 5 megapixel "normal" camera module
A 5 megapixel infrared camera module plus an infrared protrusion
Raspberry Part 5V / 2A DC power adapter adds an adjustable MAX 12V / 1.2A DC power adapter (adjustable output voltage of 3V, 4.5V, 6V, 7.5V, 9V, 12V)
There is no more introduction to the start of the Raspberry Pie, and you can see the patriarid net berry. Let's first see the true face of the Raspberry Camera module.
"Normal" 500W pixel camera module
The Raspberry Pie's camera module looks simple, mainly based on the OMNIVISION (USA Semiconductor) OV5647 5 megapixel image sensor for the largest manufacturer of CMOS image sensors, the highest support 2592 x 1944 Static picture and 1080P / 30FPS video recording, the entire module size is 20 x 25 x 10mm.
Raspberry 5 megapixel camera
Raspberry Pie's camera has a lot of gaps compared to the mainstream camera of electronics, but as we know, Apple has proved how much pixel is not directly related to image quality, pixel How much just determines the size of the photo. In terms of image sensors, their photosensitive elements and unit pixel areas are factors that are excellent in image imaging effects, and the following figure shows the system block diagram of the OV5647 image sensor.
OV5647 image sensor system block diagram
We can compare OV5647 with product comparisons based on the same pixels, and take the Apple iPhone4's 5 megapixel camera. It is very unexpected. The iPhone4 camera is also based on the US-semiconductor CMOS image sensor - only a tree The image sensor used by the raspberry is a later generation of products OV5650.
Raspberry Pie with Apple iPhone4 Image Sensor Comparison
By comparing the above picture, we see the IHONE4 camera whether it is the area of the photosensitive unit or a single pixel size, it is greater than the Raspberry Pie's OV5647 camera, and the larger the sensitive element size and a single pixel, the signal-to-noise ratio and photosensitive ability The stronger, so the quality of imaging is naturally better. Moreover, from the product line of beauty semiconductor, the current 5 megapixel image sensor series has expanded to the OV5680 series, support 3D photography, these functions, OV5647 can only look like.
However, if only the development application module of the Raspberry Pie, this entry-level 500W pixel camera module is still a pleasant.
Used
Understand this supporting camera module of the Raspberry Pivot, then the power is officially used, but everyone else does not hold too much hope - expects how good quality. Connect to the 15-pin MIPI Camera Serial Interface (CSI) connector S5 on the Raspberry PI computer board by the camera module.
Camera and Raspberry Party
After the camera is connected, you can connect other peripherals, such as displays, mouse, keyboard, network cable, etc., finally inserted with power boot, because the author's card is RS gift set of raspberry, including it, included The installation of the various systems supported by the Raspberry Part, I chose a commonly used Raspbian system installation, and the installation process is slightly over. After the completion, you can enter the system of the Raspberry.
Start entering the Raspbian system
Enter sudo apt-get update and sudo apt-get upgrade in the command window to ensure that the system firmware is upgraded to the latest to support camera drivers.
Update Raspberry Firmware
Update the firmware, enter the sudo raspi-config command to configure the start camera driver.
Launch Raspberry Party Drive
After the camera is driven, you will restart the system after enabled, followed by command to take photos and videos using the camera.
Shooting still photo command: raspistill
Shooting video command: raspivid
More commands can be used through the camera command to use the camera command, the following picture shows the author using the static original photo taken by the Raspberry Camera, not for any modification, in general.
The original picture taken by Raspberry (click to enlarge)
summary
Through the introduction and use of the berry mating camera, we must basically determine the location of this camera module, although there is a lot of gaps with the camera on the mainstream electronics, but only as a auxiliary Raspberry The entry-level supporting module of development applications, OV5647 is more than enough. In the electronic component procurement network RS, the quote of this camera module is 166.99RMB, and friends who need you can go see. OK, this review first here, the next article will evaluate the infrared camera module of the Raspberry Pie.
Reference
Is it possible to use the infrared searchlight - Is it possible to perspective?
Raspberry Pi use tutorial
Raspberry Pi Chinese Forum
OmniVision Ov5647 CMOS Image Sensor
Raspberry PI Camera Module Purchase Links
Original declaration: This article is originally created by the panel network, declined!
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