DigitalIO | Fast Digital I/O , Software I2C
kandi X-RAY | DigitalIO Summary
kandi X-RAY | DigitalIO Summary
restructured for future use of arduino library manager. pinio and i2c classes are only supported on avr. for detailed documentation see the html files. the functions in this library do not clear pwm mode for pins. clearing pwm mode for each call has a high overhead and does not address the fact that pins can be in other special modes such as serial, i2c, or spi. the digitalpin class provides very fast in-line functions. digitalpin is a template base class and pin numbers must be specified at compile time. for 328 pins and low address mega pins, read() and write() execute in two cycles or 125 ns for a 16 mhz cpu. fast static functions similar to the
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Trending Discussions on DigitalIO
QUESTION
I am running a python script on RaspberryPi 4, and today when I ran the script again, it showed me the error ModuleNotFoundError: No module named 'adafruit_ssd1306'
although I ran this same script yesterday about 10 times, it ran perfectly without any errors. I did not change anything in the script, not even its location. I tried force reinstalling the library,
running the script from another location, rebooting the pi, running it as sudo
but none of them worked either.
By using pip3 freeze
it shows that the package is installed and trying to install the package again says that the requirement is already satisfied.
Python version: 3.7
Main.py
...ANSWER
Answered 2022-Jan-30 at 06:491- make sure you typed the name of module correctly
2- make sure you use the correct python version
python3:
QUESTION
I am working with CircuitPython Libraries on MicroPython using the Raspberry Pi Pico. I am using Wiznett 5500 (ethernet module) and Esp01 (wifi module). When I tried jsonplaceholder's api, Wiznett can get request in 4,5 seconds and ESP01 can get request in 1.6 second. When I tried my real api Wiznett 5500 can get request in 1 minute and Esp01 can get in 1.6 second. My api is really fast like microsecond, I don't understand why is wiznett getting data in 1 minute.
...ANSWER
Answered 2021-Oct-21 at 11:29You need to get more data not only {"exampleexa":888.8}. Add like 3 more lines.
QUESTION
I am trying to use passing a choice of pins to the raspberry py when creating channels and want to change only the .P(value) when calling the method. For if I call the class in another class I currently have to import all libraries again with the way it is now. Below is code.
...ANSWER
Answered 2021-Aug-14 at 09:07I think you can define constants P0
to P7
in your module that defines createChannel
, and then other files can import those constants from that module instead of getting them from MCP directly. Also, you can just specify a channel with an integer from 0 to 7.
I found some online documentation for adafruit_mcp3xxx.mcp3008. I think it means the channel names like MCP.P0 and MCP.P1 are really just integer values like 0 and 1, respectively.
The ADC chips’ input pins (AKA “channels”) are aliased in this library as integer variables whose names start with “P” (eg MCP3008.P0 is channel 0 on the MCP3008 chip). Each module that contains a driver class for a particular ADC chip has these aliases predefined accordingly. This is done for code readability and prevention of erroneous SPI commands.
You can make channel names available to users of your createChannel
method by defining constants P0
, P1
and so forth in the module that defines createChannel
.
QUESTION
I'm working on a VBA macro that should read some data from an Excel sheet and then handle this data to create a XML file which I'll use on another application. Simply put, I have 3 source .txt files, 2 of them have placeholders (eg. NAMEXXX) that I replace with the sheet data and the last .txt file is the destination of the other 2, which is saved as .XML. I'd like some suggestions on how I could make my code better or more optimized, once I'm not vey familiar with VBA functions. Here are the 3 functions I've written:
...ANSWER
Answered 2021-Jul-18 at 14:03You don't have to write text files and then read them, just return the text from the function. Change folder to C:\
or D:\Exportados\TESTE_01.ap16\TESTE_01\
as required.
QUESTION
I am running a python script on a raspberry-pi.
Essentially, I would like a camera to take a picture every 5 seconds, but only if I have set a boolean to true, which gets toggled on a physical button.
initially I set it to true, and then in my while(true) loop, I want to check to see if the variable is set to true, and if so, start taking pictures every 5 seconds. The issue is if I use something like time time.sleep(5)
, it essentially freezes everything, including the check. Combine that with the fact that I am using debouncing for the button, it then becomes impossible for me to actually toggle the script since I would have to press it exactly after the 5s wait time, right for the value check... I've been searching around and I think the likely solution would have to include threading, but I can't wrap my head around it. One kind of workaround I thought of would be to look at the system time and if the seconds is a multiple of 5, then take picture (all within the main loop). This seems a bit sketchy.
Script below:
...ANSWER
Answered 2021-Apr-13 at 18:27Here's something to try:
QUESTION
My goal is checkin if a digit code e.g.1234# is wrong or correct (using a keypad like this)
So my plan was to enumerate() items inside the list given by keypress, extract each value from the list using element index and finally validate the code. The problem is in the keypress function of the library because it always gives a list where all the values have the same index (0)
How can I achieve this? Maybe using list comprehension?
Here's the code:
...ANSWER
Answered 2021-Apr-07 at 12:15keypress
is a one-item list, with key's value. If you try to enumerate over it, you will get only one item, on index 0.
If you want to get all code, you need to store clicked keys, e.g.:
QUESTION
i am currently making an autoclicker script for an samsung galaxy A70 with my raspberry pi pico in micro-python.
...ANSWER
Answered 2021-Mar-07 at 14:11in adafruit_hid.mouse you have to Send USB HID reports before you use the LEFT_BUTTON
so you have to put a variable at the start of your code like this
LEFT_BUTTON = 1
for the LEFT MOUSE BUTTON
RIGHT_BUTTON = 2
for the RIGHT MOUSE BUTTON
MIDDLE_BUTTON = 4
for the MIDDLE MOUSE BUTTON
so your code will be like this:
QUESTION
I am trying to make project of visible light communication. Currently I am using a classic LED as TX part and BPW21 photodiode with MCP3008 AD convertor as a RX part. Both of this part run on the RasPi4 withy python 3.7.3. However I have problem with receiving the bits using OOK modulation on RX part.
...ANSWER
Answered 2021-Mar-01 at 12:45This answer is solved! The problem was in the very high sampling frequency of the AD converter.
QUESTION
I am building a simple code that should display some data on a display(an ili9341 display hooked up to a raspberry pi4). Until now i only added text and it works fine , but i dont know how to add a little (20px*20px) image underneath the text. I tryed this but id doesnt work:
...ANSWER
Answered 2021-Feb-19 at 13:17You just need Image.paste() like this:
QUESTION
I've been trying to solve this problem for hours, to no avail. So, I've been trying to run an OLED screen for showing the weather, time, etc. I wrote the script with a while loop so it can run virtually forever. However, I also want to be able to start the script with a GPIO pull-up, and end it with yet another high GPIO pin. Using the on-off script to start the OLED script works flawlessly with variables, yet the script seems to be blind to the variable changes my "Off-GPIO" tries to introduce. Here's my code:
...ANSWER
Answered 2020-Jul-21 at 06:07Alright, after some tinkering, I found a solution! I discovered that RPi.GPIO has a simple way to check a pin's state with input.GPIO(channel). [This teached me a valuable lesson: Always read the documentation] I just did some simple if and while statements to solve my issue. This way has its caveats on its own, but it does what I want it to do.
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