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https://github.com/cwi-dis/iotsagpio

https://github.com/cwi-dis/iotsagpio

Science Score: 26.0%

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    Low similarity (8.5%) to scientific vocabulary
Last synced: 10 months ago · JSON representation

Repository

Basic Info
  • Host: GitHub
  • Owner: cwi-dis
  • Language: C++
  • Default Branch: master
  • Size: 35.2 KB
Statistics
  • Stars: 0
  • Watchers: 8
  • Forks: 0
  • Open Issues: 0
  • Releases: 4
Created about 8 years ago · Last pushed about 1 year ago
Metadata Files
Readme

readme.md

iotsaGPIO - web server that interfaces to hardware signals

build-platformio build-arduino

This is a wifi http server that allows access to some 3.3v hardware signals (analog input, digital input, digital output, PWM output). It is built using the iotsa framework.

Home page is https://github.com/cwi-dis/iotsaGPIO. This software is licensed under the MIT license by the CWI DIS group, http://www.dis.cwi.nl.

As distributed the service allows access to 6 digital ports (which can be configured as input, input with pullup, output or PWM-output) and one analog input. In addition there is a readonly port timestamp which returns the number of milliseconds since boot.

Software requirements

Or you can build using PlatformIO.

Hardware requirements

  • a iotsa board. Alternatively you can use any other esp8266 board, but then you may have to adapt the available I/O pins.

REST API

GET /api/io will return the current value of all current input ports.

PUT /api/io expects an object that can contain name : value pairs for any ports configured as output or pwm_output.

GET /api/ioconfig will return an object with name-value pairs containing the current configuration of each port:

  • 'input' for input ports (digital, analog or timestamp),
  • 'input_pullup' for digital input ports with the internall pullup resistor enabled (so open inputs read as 1 in stead of a random undefined value).
  • 'output' for digital output ports.
  • 'pwm_output' for digital output ports that present a pseudo-analog output value using pulse-width modulation.
  • 'unused' for ports that are not in use.

PUT /api/ioconfig allows to set the configuration for each port, using the same values as above. The device must be in configuration mode.

Owner

  • Name: cwi-dis
  • Login: cwi-dis
  • Kind: organization
  • Location: Amsterdam, the Netherlands

CWI Distributed and Interactive Systems Group

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