I2C | Image Communication for Weakly Supervised Localization | Computer Vision library

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

I am now developing a kernel module to handle two digits 7-segment led indicator via I2C device on RaspberryPi4 with RaspberryPiOS.

This module uses kernel thread to handle 7-segment led display, change digit position.

Sending command to i2c device requires i2c_client* structure, it can be obtained via formal argument of probe function.

Kernel thread does not have formal argument of i2c_client structure.

My solution is to store a pointer of i2c_client* structure into a global variable and use this pointer inside kernel thread, and call i2c function with this pointer.

My kernel module works well, at least now...

Do you have better solution to use i2c function in kernel thread? or exists better solution?

My entire code is below...

I've got this power monitor that I'm attempting to interface with to retrieve it's fault log LTC2977 (data sheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ltc2977.pdf)

I'm new to i2c / pmbus / smbus things so forgive my poor terminology or incorrect descriptions of how things work. On page 18 the data sheet states that I can interface with it like so:

The LTC2977 is a slave device. The master can communicate with the LTC2977 using the following formats:

• Master transmitter, slave receiver
• Master receiver, slave transmitter

The following SMBus protocols are supported:

• Write Byte, Write Word, Send Byte
• Read Byte, Read Word, Block Read
• Alert Response Address

Figure 1a-12 illustrate the aforementioned SMBus protocols. All transactions support PEC (packet error check) and GCP (group command protocol). The Block Read supports 255 bytes of returned data. For this reason, the PMBus timeout may be extended using the Mfr_config_all_ longer_pmbus_timeout setting.

The log in question can be accessed with SMBus (PMBus?) command 0xEE, wherein it will spit out 0xFF followed by 255 bytes containing the log data. Now I can see the device and all its internal commands/registers(?) by doing i2cdump, and similarly if I do i2cget ... 0xEE I get the output 0xff, which is what the first entry in the log is supposed to be. I can also do i2cget ... 0xEE w, so outputting as a word to get 0x--ff where the '-'s are values changing everytime I call i2cget, my log data perhaps?

My problem is I'm attempting to read this as a block like the document stated I could do above. I'm not entirely sure how to do this so I tried the following:

I have connected a Bright Pi to my Raspberry Pi 3 B and through the use of Unosquare RaspberryIO and WiringPi dotnet I am trying to control the LEDs.

I have followed this Quick Start guide and can confirm the LEDs work based on the steps documented there...

If I run i2cdetect -y 1 on the device I see the following output.

I am trying to connect LCD1602 RBG Waveshare to the Raspberry using C#. I connected it to the Raspberry and set the permissions, now trying to pass some data. The code below run all lines, but the LCD is not reacting. If anyone can advise me.

I have variable uint16 value, I want to copy it to uint8_t buffer[3]. Is it possible to do (Little endian):

I'm thinking about implementing a GPS+I2C inertial measurement system (IMU) in Erlang. I would like to start taking multiple samples from a set of I2C slaves based on the GPS 1PPS mechanism, in order to measure everything at the same time.

Since Erlang uses message queues for receiving messages, what can I do to ensure synchronization between GPS and I2C sensors? Can I handle both in separate processes without losing synchronicity?

I am utilizing yocto (dunfell) to cross-compile a project for multiple different architectures. Specifically, the targets I have are a 64-bit RaspberryPi4 (aarch64) and a 32-bit Orange Pi (armhf). My project that I am cross-compiling compiles and runs without issue when building for the raspi target; the runtime linker is properly set and things run without issue. However, whenever I build for the Orange Pi target, the program appears to compile without issue, but when I try to execute it on the platform, I get a "File not found" error.

This appears to be because the interpreter (runtime linker) is set to /usr/lib/ld.so which is not actually on the system. See below:

I would like to use my Raspberry Pi as a weather station. Therefore I bought a "Debo Sen Rain" and a "Debo Sens BME680". Because I've never worked with Python before, I copied two scripts out of the Internet. They do both work very well. Yesterday I created a telegram bot, which should send me the current measured data, when sending "/data" or "/rain". So I copied the original scripts in a new python script and embedded the bot. Unfortunately, It doesn't work but I can't locate the error.

Here's my code: