datasheets | Read data from , write data | Data Visualization library
kandi X-RAY | datasheets Summary
kandi X-RAY | datasheets Summary
Read data from, write data to, and modify the formatting of Google Sheets
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Top functions reviewed by kandi - BETA
- Create a new tab in a new workbook
- Fetches information for a given kind
- Fetch the file id associated with the given filename
- Create a new workbook
- Construct a list of lists from the input data
- Process DataFrame headers
- Process pandas index names
- Process pandas values
- Convert a cell index to a label
- Return the column letter corresponding to the given column index
- Create a tab in an existing workbook
- Add n columns to the table
- Adds rows or columns to the worksheet
- Update spreadsheet properties
- Get the version string
datasheets Key Features
datasheets Examples and Code Snippets
Lines of Code : 4License : Strong Copyleft (CC BY-SA 4.0)
Copyhx.power_down()
time.sleep(0.001)
hx.power_up()
In [26]: data = '''\
...: XXX.pdf
...: [Remove]
...: XXX.pdf
...: [Remove]\
...: '''
In [27]: def func(string, rep):
...: return ', '.join([x for x in string.split('\n') if x != rep])
...:
In [28]: func(dException Response(131, 3, IllegalAddress)
value = instrument.read_holding_registers(113, unit=1)
print value.registers[0]
colnames = ", ".join (data['PartDetails']['MediaLinks'][0].keys())
placeholders = ", ".join(["?"] * len(data['PartDetails']['MediaLinks'][0]))
query = "INSERT INTO MediaLInks (" + colnames + ") VALUES (" + placeholders + ")"
cursor.executedata_xls = pd.read_excel('InputFile.xls', index_col=None, skiprows=2)
df = pd.read_excel('InputFile.xls', index_col=None)
# Find the first occurrence of "Col1"
column_row = df.index[df.iloc[:, 0] == "Col1"][0]
# Use this row as header
df.columns = df.iloc[column_row]
# Remove the column name (currently anclass Step1View(TemplateView):
template_name = 'xxx'
def post(self, request):
if 'button1' is clicked:
return redirect('/step2')
elif 'button2' is clicked:
return redirect('/step3')
class St$ echo ad5272 0x2f > /sys/bus/i2c/devices/i2c-1/new_device
$ dmesg | tail -n 2
[ 711.195428] i2c i2c-1: new_device: Instantiated device ad5272 at 0x2f
[ 711.242537] ad_dpot 1-002f: ad5272 1024-Position Digital Potentiometer registeredplants = [{"Name": "Carrot", 'plantID': '','plantingTime':0, "dateOfPlanting": 0, "numberOfPlants": 0, "germinationTime": 7, "growthTime": 227, "flowerTime": 247, "harvestTime": 254, "liveCycles": 1, "status": 0},
{"Name": "Potato", 'plantdef longest_song(): pass
def songs_by_year(year):
total=0
with open('music.csv', 'r') as f:
for line in f:
time = line.split(",")
song = time[34]
try:
if int(song) == yeaCommunity Discussions
Trending Discussions on datasheets
QUESTION
For example, the pdf(https://datasheets.raspberrypi.com/rpi4/raspberry-pi-4-datasheet.pdf) has many bookmark.
I'd like to go to the specific page with a URL. The #page=10 can be used, but it is not accurate.
Is it possible to go to the bookmark page with a URL?
Thanks a lot
...ANSWER
Answered 2022-Apr-04 at 01:12There is no guarantee that any viewer will support bookmarks nor where they will open a page , since often it is the same as the page number so try but expect page 6 OR 7 depending on viewers page number interpretation.
https://datasheets.raspberrypi.com/rpi4/raspberry-pi-4-datasheet.pdf#nameddest=interfaces
However some viewers may on occasion do better if using other methods such as comment number or two commands combined such as scroll to.
The sample you nominated above does not seem to respond to named destinations as well as other pdfs can, but does at least open that interfaces page. so trying a more complex
It seems not to work in my Edge that's just page 1) which is why the advice is keep PDF bookmark corners a single unique word, never write them as War and (another) Piece. Pages are the most likely to work well, but not like a ToC in the frontispiece, unless you can fully control the viewers input/response.
Also beware
PDF view settings
Search result match: Open PDFs to last viewed location when you reopen files
Since by default that was on during my testing, my result was often skewed. Edge and Safari are usually the worst for applying URL Bookmarks, if at all.
However an offline viewer such as the one I support will usually allow driving from bookmark to bookmark via a program (here using the Win11 Cmd line for proof of ability, but can be via DDE etc.)
QUESTION
I've found trailing '#' characters in the pin description section in some datasheets, which indicates that the specific pin has active-low functionality.
Is there any conventions for variable names which hold for example pulled up GPIO input pin values?
...ANSWER
Answered 2022-Mar-20 at 16:54It is very helpful when translating a schematic to a header file with constants for the pin numbers to name the constants as close as possible to the net names on the schematic.
This leaves three problems that I have encountered regularly:
Net names with a dash: I just replace this with an underscore.
BAT-LEVELbecomesBAT_LEVEL.Net names starting with a digit: I start all the pin numbers with the same prefix:
3V3_ENABLEbecomesPIN_3V3_ENABLE.Net names with a slash or hash character or overbar (all of which signify active low). I replace this with a lower-case
nin an otherwise all-capitals constant.SPI_CS#becomesSPI_nCS.
QUESTION
So i have a dataset with a few columns. However, one column is made out of locations, in this case street names. I would like to rename those to just one letter. So for example:
Location Location new Beukenlaan A Deventerlaan B Crixstraat C Deventerlaan BI have to do this for multiple datasheets so the function below would take a lot of time to adjust manually.
...ANSWER
Answered 2022-Feb-15 at 13:42You could use factorize and string.ascii_uppercase:
QUESTION
I have the LIS3DH accelerometer connected with i2c and when I run the script, which is supposed to print out the x, y, z values I am getting random numbers.
I'm in C++ using the i2c and smbus libraries, which are part of the Linux Kernel.
This is the (datasheet)[https://cdn-shop.adafruit.com/datasheets/LIS3DH.pdf] for the accelerometer.
I have tried changing the addresses of registers.
I tried __s16 instead of __s32.
I'm not sure if I'm missing something that should happen before readings are taken. I don't know if other registers need to be written to. I'm a little in the dark about what exactly is going on in the function in the bottom with the bits and values returned from the registers. I would like to learn.
ANSWER
Answered 2022-Feb-04 at 22:52I was using initialize_mpu with the wrong register addresses.
There are a few configuration options buried somewhere in this datasheet. I applied one and now I get muh readings.
QUESTION
I know it's not a coding question , but I am struggling with something around my head for a little bit, for example stm32f446re : why it doesn't have only one datasheet , why so many datasheet for only one microcontroller , also my question is : how could I get all different possible datasheets for a specific microcontroller like stm32f446r4 Nucleo because I searched a lot but my instructor told me that there is about 6 different datasheets for stm32f446re , but what I could find is only 2 datasheets ?
...ANSWER
Answered 2022-Feb-01 at 15:27Traditionally, documentation for microcontrollers goes like this:
- Data sheet = information for the hardware designers.
- Reference/User's Manual = information for the software designers.
- A separate core manual regarding the CPU Instruction Set Architecture (ISA) and assembler language, also for software designers.
- Application notes = additional information about either hw or sw.
- Errata. List of known hardware bugs. Always skim through it!
Please note that "Nucleo" etc isn't a microcontroller but a specific evaluation board. It will have additional information about that specific board.
QUESTION
I am trying to convert an ADC bipolar differential signal in C++. The device I am using is a 12 bit MAX11613 (datasheet) and the microcontroller is a Raspberry PI 3B+. So far I am able to capture values, however the results are not the differential result of AIN0 and AIN1 I would expect.
The device is a 3.3V supply and the input on AIN0 is 0-3.3V. The input on AIN1 is the virtual ground of the incoming signal at 1.65V.
The bipolar transfer function of the device shown below may be my source of confusion. Why is it that a value just under the midrange of 1.65V would produce a value of 0b111111111111 and not 0b100000000001? And if that is actually correct, how does one adjust for that to reflect an actual negative voltage compared to the virtual ground input (AIN1)?
For what it's worth, here's my code:
max11613.h
...ANSWER
Answered 2021-Dec-07 at 22:29Updated original code with final working detail.
I used the pigpio library to control the read and write to the chip. Setup function runs first to complete chip setup and configuration, then reads are called as needed.
Many, MANY thanks to alagner for assistance reviewing code and troubleshooting!
QUESTION
I need to communicate via I2C to the adxl357 accelerometer and a few questions have arisen. Looking at the RP2040 sdk documentation I see that there is a special method to send data to a certain address, such as i2c_write_blocking(). Its arguments include a 7-bit address and the data to be sent. My question is, since the accelerometer needs a Read/Write bit, is it still possible to use this function? Or should I go to the alternative i2c_write_raw_blocking()?
Also, I don't understand the notation of the Read / Write bit, it is reported with R/#W, would that mean that 1 is Read while 0 is write?
Thanks in advance for the help.
...ANSWER
Answered 2021-Nov-30 at 21:15I2C addresses have 7 bits: these are sent in the high 7 bits of an 8-bit byte, and remaining bit (the least significant bit) is set to 1 for read, 0 for write.
The reason the documentation says it wants a 7-bit address is because it is telling you that the write function will left-shift the address by one and add a 1, and the read function function will left-shift the address by one and add a 0.
If it didn't tell you this you might pre-shift the address yourself, which would be wrong.
QUESTION
I'm trying to write a driver for a MAX11613 ADC chip (MAX11613 Datasheet) in c++. I think I've got the write code correct for the setup and config, but I'm having some trouble with the read code. I am setting the chip up to read using the internal clock in Unipolar mode and the internal voltage reference, then writing the config to scan using AIN0 as the + signal and AIN1 as the - signal channels and report the differential reading. It does seem to read data, though the data appears to be very erratic and not what is anticipated based on oscilloscope results.
Setup bits: //1111 0000=0xF0 SEL2=1, SEL1=1, SEL0=1, INTERNAL CLOCK, UNIPOLAR
Config bits: //0110 0000=0x60 SCAN1=1, SCAN0=1, AIN0-AIN1, DIFFERENTIAL
Here's my read code, which may be part of the problem:
...ANSWER
Answered 2021-Nov-30 at 20:25It appears that I am now able to read data from the device after some more review. Here's the final code that works, for anyone else that might be interested.
QUESTION
I have a bluetooth device and I'm trying to understand why no BT debug app on my iOS device can find it, and yet my Mac and iPhone settings app can discover and connect to it no problem.
The debug apps I'm using on iOS are BT Low Energy scanners and I'm wondering if it's not that kind of device, is there a way to tell from the below debug?
Connecting to it via mac and running system_profiler SPBluetoothDataType gives:
ANSWER
Answered 2021-Aug-28 at 06:58Bluetooth Low Energy was added to Bluetooth version 4.0. Since your device uses Bluetooth 3.0, it must be a Bluetooth Classic device.
QUESTION
I struggled to figure out, how to read from a UART peripheral into a larger queue with DMA.
The documentation does provide quite a bit of information, but I found it difficult to figure out how to connect everything together.
The UART peripheral is capable to signal a DMA controller when data is avaliabe.
DMA channels can be triggered by a variety of sources.
The DMA can wrap around which is perfect for circular buffers.
ANSWER
Answered 2021-Jul-04 at 15:29I did post the question and this answer, because I was not able to find good examples otherwise. This is not an optimal solution, but demonstrates all the things that were difficult to figure out for me.
Originally, I though that the UART peripheral would "trigger" the DMA channel and that it would then start copying. However, the DMA channel needs to be triggered prior to any signals and will then suspend the copy process unless it is signaled.
When triggered the DMA will copy the transaction count and read/write address registers elsewhere and then modify the copies when it makes progress. If it is triggered again, it copies the originals.
The DMA no longer knows the start address which means that when wrapping is enabled, the buffer needs to be aligned such that the DMA can use bitmasks to figure out where it needs to wrap.
The following snippet should demonstrate how a DMA channel can be configured to read from UART:
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No vulnerabilities reported
Install datasheets
You can use datasheets like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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