Fitbit upcoming IPO, this is a smart wearable company, the main products for health testing equipment, smart bracelet, smart watch. Let's take a look at some of Fitbit's data. According to its prospectus, Fitbit sold 10.9 million wearable devices in 2014, more than twice times in 2013. As of the first quarter of 2015, Fitbit sold 20.8 million devices from its inc
Editor's note: This article from Tomasz Tunguz, the Chinese version by Heaven Zhuhai Branch Rudder compiled.
If you are concerned about these days of overseas industry news, you should be not unfamiliar with the news that Fitbit is listed on the Nasdaq and become another "unicorn"-level start-up company. We have previously written about how the GoPro's income growth rate is unbelievable. And now it seems that
Objective: To import the Fitbit daily Movement records into the R language for analysis and to draw a statistical chart toOriginal data: fitbit2014 Daily Record spreadsheet file, examples are as follows:
Date
Calories burned
Step
Distance
Number of floors climbed
A sedentary number of minutes
Less active minutes
Moderate active minutes
Very active minutes
In general use, you may need to use the firmware update function. In Linux, the device model of the firmware subsystem is provided to help you quickly upgrade the firmware.
Here we will first describe the common interfaces provided in Linux:Kernel firmware interface:
# Include
After the
Overview:
Yesterday, Keil, the firmware development environment, was basically completed, and the INC and Lib provided by suite 3.4.7 were added using the c file of the random firmware program ccd1, the Hex file is slightly smaller than the Hex file attached to ccd1. (Not fit: The old fx2regs. the hfile does not define every bit of the port ABCD (E cannot be accessed by bit), so the txmaster of ccd1. the be
"IOS8 firmware file Incompatible Solution"
1, before downloading the firmware, we must first confirm its own model. Many of the firmware downloads available on the web are typed with the corresponding machine model. For example, the iphone5s iOS8 Beta2 Beta firmware is seen in the image below, and is divided into
The first step, we turn off the computer, and then the Apple 5s mobile phones and computers connected.
The second step, as shown in the following illustration, also presses the Apple 5s "power-on key" and "Home key" as shown in the following image.
Until the phone appears white Apple, you can release the Power-on key, but also hold down the home button does not release.
Then we open itunes on the computer so you can find that itunes will go i
The earliest TV bought back, feel the garbage software too much, after root, delete the software accidentally deleted the desktop, resulting in no desktop.With ADB installed a point of software, can be used.Later installed the Goku remote control, and then installed the sofa desktop, does not affect the use of.Recently Hisense constantly push update system, change manual update is still push, and shut down, want to update and update not (root can not automatically update) do not update and TV ca
Method one, directly on the device through the wireless network upgrade
1.iTunes upgrade Download firmware It's slow and it's not a weird thing to do, as long as friends who use ITunes to upgrade the firmware download are likely to have this problem.
2. If we have WiFi network can try to use directly in the mobile phone to download the iOS file, this relatively will download the file relatively small OH
Understanding the Firmware Library (1) and the Firmware Library
When we use the STM32 Firmware Library, we need to understand the structure of the Firmware Library package officially provided.
Folder introduction:
The Libraries of the Firmware Library package has two direct
1. We will find in the online download is said to be iphone5s iOS8 Beta2 beta firmware, but there is no detailed description is that version, I carefully tested found on the online iphone5s iOS8 Beta2 beta firmware are 5S a1457,a1518,a1528, A1530 and 5S a1453,1533 firmware, so many friends will have incompatibilities after downloading.
2. Then we must see in t
"Iphone firmware upgrade Tutorial"
1, to ensure that your equipment has been connected to the WiFi network, and mobile phone power not less than 50%.
2, into the device's "set-general-Software Update" interface, when the page is entered, the system will automatically detect the current updatable updates of the latest firmware.
3, click the "Download and update" button, you need to confirm the ter
1-at, Lua, and SDK development methods
2-install JDK
3-get the development firmware from the browser
4-compile the firmware by yourself (provide video tutorials, required files and binfiles compiled by the craftsman core). Beginners do not need to compile the firmware by themselves. Learn to use it first.
5-fl in the Learning
This is the use of this paragraphBecause this default is the firmware that supports the AT command, so we're going to brush Nodemcu'sFirst look at the wiringGPIO0 default is operating mode (no wiring). If the next low level is the download mode (to the module brush firmware!!) ) So the low level is connected. CH_PD high level, the rest can not be wired except TX,RX.The rest is actually almost the same as my
From the STM32 Firmware Library, the STM32 Firmware Library
The biggest difference between STM32 and general single-chip microcomputer/ARM7 is that it has many registers, and it is difficult for users to write down all of them. Therefore, ST officially provides a set of library function source code according to the specifications, you can directly operate the database functions to perform register oper
I believe everyone is familiar with TFTP, right?
BCM-swiping machines: wayos, tomato, ddwrt, openwrt, and so on all need to be used. In earlier versions, you can only open one window, And Then ping 192.168.1.1-t to ping the route's TFTP server, when TTL = 100, click Update route! The TTL process is only about 2 seconds. Sometimes you just skip it when you are not careful. It is really hard to get a route!
However, with this new version and the TFTP flash brush software, you can rest assured th
As a driver author, you may find that you face a device that must download the firmware into it before it can support work. The competition in many parts of the hardware market is so strong that even a bit of the cost of the EEPROM used for device control firmware is not willing to spend. So the firmware is released on a CD along with the hardware, and the operat
As a driver author, you may find that you face a device that must download the firmware into it before it can support work. The competition in many parts of the hardware market is so strong that even a bit of the cost of the EEPROM used as a device control firmware is not willing to spend. So the firmware is advertised on a CD along with the hardware, and the ope
Creating a test firmware in a test case through Setup (), teardown () allows the test firmware to be used by the different test methods of a single test case, and if multiple test cases require the same test firmware, the test firmware needs to be extracted into a separate class. JBuilder provides 3 predefined test
Samsung MFC (Multi Format Codec) Firmware and linux3.xfirmware under Linux3.X
By cool liukun321
From: http://blog.csdn.net/liukun321
The Samsung series processor has integrated a Multi Format Multi-Format media Codec hardware module from the very beginning of the SOC. In addition, Samsung's linux BSP is open-source to drive it. A friend who has read the MFC driver will surely find out that the kernel needs to load a Samsung MFC
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