sensor | Mock sensor code to send lorawan otta join command

Support for _PIP_ADDITIONAL_REQUIREMENTS environment variable has not been released yet. It is only supported by the developer/unreleased version of the docker image. It is planned that this feature will be available in Airflow 2.1.1. For more information, see: Adding extra requirements for build and runtime of the PROD image.

For the older version, you should build a new image and set this image in the docker-compose.yaml. To do this, you need to follow a few steps.

1. Create a new Dockerfile with the following content:

You need to add scala-compiler configuration to your pom.xml. The problem is without that there is nothing to compile your SparkTrans.scala file into java classes.

Add:

You're using wrong hardware & software for the job. Jetson Nano can be considered as a full featured PC. As I understand, it's suitable for high level algorithms, image processing and neural network evaluation. Bare metal programming does not make much sense for this kind of devices, hence you have Linux running on it. You need to be aware that in the presence of a non real-time operating system, you can't get reliable delay times.

Reading a quadrature encoder is low level task with strict hard real-time requirements. For this, you need microcontrollers (like PIC, AVR, ARM Cortex M), C/C++, bare-metal programming or an RTOS, and preferably dedicated hardware which is capable of reading quadrature encoders directly.

Polling input pins isn't the correct way of interfacing encoders. Keep it in mind that you need to poll the pins much faster than the expected pulse frequency. In microcontrollers, you use interrupts instead which saves you from polling. Even interrupts can't keep up with high resolution & fast turning encoders. When interrupts don't suffice, you need dedicated encoder interfacing hardware which counts pulses automatically for you.

The best thing you can do is picking a microcontroller and outsourcing the encoder counting job to it. As your encoder resolution is low, you don't need special quadrature interface hardware modules. You can just pick an Arduino and make it count pulses. Then your Jetson Nano can query Arduino using serial port, I2C or SPI to retrieve the up-to-date pulse count.

you start your loop by defining a running variable 'i'. But all over the loop, you redefine it to be other integers and unrelated objects. Such as in line 83, line 155, and others. It's difficult to understand your intentions from the question. but if I understand correctly, the problem can be solved by changing every 'i' in the loop to a differently named temporary variable. A simpler solution would be to change the 'i' variable at the beginning of the for loop to smth else. I suggest you adopt a habit of using variable names that have meaning and not just single or double letters.

You are not starting the client network loop or manually calling it.

https://www.eclipse.org/paho/index.php?page=clients/python/docs/index.php#network-loop

You probably want to add client.loop_start() after client.connect()

The problem is in that you try to use the servo() function before properly declaring it. First, you need to declare a function before it can be mentioned in your code. Second, your definition for the servo() is incorrect. The int servo(lever), where lever is not a type. You should look toward the following: int servo(bool lever);, where lever is a parameter of type bool which the servo() function takes.

Then, your function does not return anything, it only has some "side-effects" such as myservo.write(pos);. So, it should be void.

Try the following arrangement:

At the moment you are using the notna() method which returns the mask of your column ('Ax'): Trues at values and Falses at NaNs. So then you can call:

You can try update with aggregation pipeline starting from MongoDB 4.2,

• $filter to iterate loop of sensor_data array, check both fields date condition and $not for the opposite condition to exclude matching documents
• $min to get minimum start_ts date from sensor_data.start_ts
• $max to get maximum end_ts date from sensor_data.end_ts

You can use this JS code: