si7021 | platform agnostic driver to interface with the Si7021

by wose Rust Version: Current License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(5)Vulnerabilities Install Support

kandi X-RAY | si7021 Summary

si7021 is a Rust library typically used in Embedded System, Raspberry Pi applications. si7021 has no bugs, it has no vulnerabilities and it has low support. However si7021 has a Non-SPDX License. You can download it from GitHub.

A platform agnostic driver to interface with the Si7021 humidity and temperature sensor.

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Quality

Security

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Support

si7021 has a low active ecosystem.

It has 5 star(s) with 3 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

si7021 has no issues reported. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of si7021 is current.

Quality

si7021 has no bugs reported.

Security

si7021 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

si7021 has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

si7021 releases are not available. You will need to build from source code and install.

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si7021 Key Features

No Key Features are available at this moment for si7021.

si7021 Examples and Code Snippets

No Code Snippets are available at this moment for si7021.

Community Discussions

Trending Discussions on si7021

How to execute something every 10 seconds?

what is si7021 sensor i2c command sequence

erlang JSON data - how to select only one value

How to use nested asychronous code correctly?

Rx and Tx creating a lot of noise when floating on ESP8266 and Arduino

QUESTION

How to execute something every 10 seconds?

Asked 2021-Jan-04 at 09:13

I would like to execute a piece of code every 10 seconds. I have found an example on this forum, but have some issues with my implementation.

...

ANSWER

Answered 2021-Jan-03 at 18:04

You need a class that extends TimerTask and override the public void run() method, which will be executed everytime you pass an instance of that class to timer.schedule() method.

Source https://stackoverflow.com/questions/65553138

QUESTION

what is si7021 sensor i2c command sequence

Asked 2020-Sep-11 at 15:08

From the manual shown bellow the address is 0x40 the measure temperature command 0xE3.

From the readback diagram first master sends slave address and measure command,then We send slave Adress.

But we cant see in the diagram where is the measured data,how it transfered back? The manual doesnt say what is MS Byte,MS Byte. Thanks. https://www.silabs.com/documents/public/data-sheets/Si7021-A20.pdf

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ANSWER

Answered 2020-Sep-11 at 15:08

The measured data is contained in the MS Byte and the LS Byte. The measured data is a two-byte value. MS Byte is the most significant byte. LS Byte is the least significant byte.

In the diagram, the unshaded cells represent data transmitted from the master to the slave. And shaded cells represent data received by the master from the slave.

Source https://stackoverflow.com/questions/63849130

QUESTION

erlang JSON data - how to select only one value

Asked 2020-Aug-18 at 12:40

in erlang language I receive this kids of JSON data:

...

ANSWER

Answered 2020-Aug-17 at 18:59

For decode JSON format into Erlang format data like proplists or into the maps, you can try to use 3rd party library jiffy, then you can use simple pattern matching, eg:

Maps:

Source https://stackoverflow.com/questions/63436558

QUESTION

How to use nested asychronous code correctly?

Asked 2018-Oct-08 at 10:22

I've created a little api using micro.

Running localhost:3000/get-status should return the data object. So far the console.log() is printing the expected object.

But on the browser I get Endpoint not found and on the server I get the error Si7021 reset failed: Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client

What am I doing wrong with my getStatus() function? I guess I've mixed up something with the promises and asynchronous things. And maybe I've nested the functions unnecessarily...

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ANSWER

Answered 2018-Oct-08 at 10:22

Looks like your handler returns a promise that resolves immediately. Can you try to rewrite the last line like this?

Source https://stackoverflow.com/questions/52699390

QUESTION

Rx and Tx creating a lot of noise when floating on ESP8266 and Arduino

Asked 2018-May-03 at 17:34

I have connected an Arduino Pro-Mini 3.3V 8MHz to an ESP8266 via I2C.

The Arduino is in charge of collecting data from a thermistor (analog temperature) (T2) and a SI7021 (digital temperature) (T1).

The ESP8266 is in charge of sending the data received from the Arduino to an endpoint.

Here is my repo: https://github.com/ClemRz/Solar-Water-Heater-Monitor. In the res folder you will find a picture of the circuit.

The issue I am having is that as long as I leave the FTDI RS232 programmer connected to either the Arduino or the ESP I'm having a smooth response from the thermistor but as soon as I disconnect it, the response get some noise. What is happening?

Here is a graph where we can see 3 phases: https://i.stack.imgur.com/TsnvY.png

Programmer disconnected: some noise can be seen
Programmer connected: smooth noiseless curve
Programmer disconnected again: noisy

If I remove Rx and Tx and I leave GND connected to the FTDI I also observe that the reading is smooth and noiseless.

Solved: I switched the wall adapter to a better quality one and it fixed the noise issue.

...

ANSWER

Answered 2017-Oct-04 at 22:06

Where do you get the power supply from when you disconnect the FTDI interface?

I've experienced the same issue when I don't wire the grounds properly. Double check all your grounds are wired together (from your main circuit and from the FTDI/USB). Remember ground is a voltage reference that must remain consistent throughout your circuit.

Source https://stackoverflow.com/questions/46572041

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install si7021

You can download it from GitHub.
Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.

Support

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