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Old

Tracking Environmental Data with TPS and Keen.IO

Posted 01-26-2017 at 08:26 AM by Dmitry_Slepov

About the Application
  • Keen.IO is a cloud platform that provides data collection and analysis services via the REST API. Keen offers SDKs for many programming languages, including browser-side JavaScript and Node.js.
  • In this tutorial we used Tibbit #30 (ambient humidity and temperature meter) for collecting environmental data and storing it on the Keen.IO server.
  • A very simple in-browser application is used for fetching data from Keen.IO and displaying charts in the browser window (the
...
LQ Newbie
Posted in Uncategorized
Views 399 Comments 0 Dmitry_Slepov is offline
Old

Simple Card-based Access Control

Posted 01-25-2017 at 07:00 AM by Dmitry_Slepov

About the Application

This project implements a very common access control device. The LTPS is equipped with Tibbit #08 (clock/data and Wiegand interface). It gets card codes from an external RFID card reader. The project lets you save user names and their ID codes into the database, as well as verify the cards you read against the records of the database. When you read a card which ID code matches any ID code from the database, the terminal "grants access" (the blue LED...
LQ Newbie
Posted in Uncategorized
Views 378 Comments 0 Dmitry_Slepov is offline
Old

GPIO: Displaying currency exchange rate on 7-segment indicators

Posted 01-25-2017 at 05:13 AM by Dmitry_Slepov
Tags arm, linux, nodejs, tibbo

About the Application

This tutorial is dedicated to the control of 7-segment LED indicators by means of a single Tibbit #00_1 and several shift register ICs (daisy-chained together).
  • 7-segment indicators are reliable and cheap LED devices which can display decimal digits and some characters. Every segment of the indicator is monitored through an allocated input. To drive all these inputs from the LPTS, you need many wires (32 lines for a 4-digit display). A more pragmatic
...
LQ Newbie
Posted in Uncategorized
Views 285 Comments 0 Dmitry_Slepov is offline
Old

LED Control From the Web Browser

Posted 01-21-2017 at 07:37 AM by Dmitry_Slepov
Tags arm, linux, nodejs, tibbo

About the Application
  • This is a simple application which enables the control of a GPIO line via a web browser. To toggle the line HIGH/LOW, click on a rectangle. This app can be used to control a relay Tibbit, a LED Tibbit, or some other "output" Tibbit.
  • The app utilizes a popular socket.io library to facilitate a connection without interruption between the TPS and the browser, as well as the AngularJS V1.x.x front-end framework that makes the development of single-page
...
LQ Newbie
Posted in Uncategorized
Views 279 Comments 0 Dmitry_Slepov is offline
Old

Two-way Control with Web and Button

Posted 01-20-2017 at 07:22 AM by Dmitry_Slepov
Updated 01-30-2017 at 12:12 PM by Dmitry_Slepov
Tags arm, linux, nodejs, tibbo

About the Application
You can expand the functionality of the prev app if you add a hardware button control. Pressing the button will also toggle the state of the GPIO line (LED, relay,...) which is reflected in the LED state displayed in the browser window.

What you need
Besides the hardware used in the prev app you will also need:
  • 1 x Tibbit #38 (push button)
  • 1 x Tibbit #00_3 (2 direct I/O Lines with 5V and Ground)

Proposed Tibbit configuration

...
LQ Newbie
Posted in Uncategorized
Views 291 Comments 0 Dmitry_Slepov is offline

  



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