![]() Think of the armed forces of different countries, for instance. When using the tether for capstan locomotion, the craft acts like a buoyant ship or airship on a medium, but when the tether is used for Morse code communication, THUMP shows that the tether really is a distinct medium. It's an oblique capstan-driven cablebot, anchored at both ends, that sails, on what I like to call, a "tether sea". A traditional hoistbot with a winch and take-up reel is kind of like a helicopter, but TrillSat is a little different. It creates its own serial bus protocol (using Morse, of course!) and has zero reliance on other protocols, which is nice.Įbb and flow, flotsam and jetsam, dits and dahs. A resource-efficient Morse code algorithm and decoder was created for an ATtiny microcontroller, which can also be daisy-chained to multiple microcontrollers for asynchronous, parallel operation in more complex cases where different CPUs control different subsystems (which was the case with my prototype). The operator simply "thumps" the tether (hammering, plucking, or yanking) to instruct the robot to move or perform any desired function within its capabilities, and the machine vibrates back a response. THUMP requires only a 3-axis accelerometer interrupt for sensing and uses the hoist/winch motor for haptic pulse generation. And instead of only hoisting something up or down, as in the helicopter/diver example, robotic hoists can also be inverted, anchored at one end, and the hoist platform itself can be instructed to move up or down (a vertical hoistbot, or a horizontal/oblique winchbot or cablebot) turning it into a tethered flying, or even submersible, craft. THUMP is a low-cost, low-power system that uses a subset of International Morse Code for the full A-Z alphabet. But such a system could be applied to a variety of different types of craft, and building it has provided fascinating insights. It is an experimental subsystem that I built to communicate and control a small, solar-powered, self-propelled, tethered robotic radio platform, in cases where its primary radio systems go down. Parallel Operation Using a Single Pin and Bus Protocolįirst, please let me clarify that, at this time, THUMP is in no way suitable for critical emergency situations. If you're having issues, here's my own package.The Problem With Using Acceleration Pulses to Send Morse Code Simply answer all questions that come afterwards. Next, create an index.js file: touch index.js Now that we have Node.js setup, let's initialize our project.Ĭreate your project directory (I called mine Slackbot) and initialize git: git init Node.js comes with Npm, so you don't have to install that again.If you prefer to use a package manager to install, read this for all operating systems. If you have it installed already, skip this step. Let's set up and install Node.js and Npm first. You don't need to know how to write Node.js, since I'll walk you through it. We'll build this bot with Node.js and SlackBots.js. Pretty interesting right? Let's get started. You can clone or fork the final project here. After you go through it, you can think about something else and build a different bot, as there're many possibilities. This article is not really about what we'll be building - it's just to show you the concept behind Slack bots and how to build yours. ![]() And when the user types help, it returns the instruction guide. When the user types random joke, it returns a random joke from the Chuck Norris API. When a user mentions our bot and adds inspire me, the bot returns a random quote from inspireNuggets. ![]() We'll be using the quotes JSON from this extension as our quotes API and the Chuck Norris Jokes API for the jokes. I built a chrome extension that displays random inspiring techie quotes for developers/designers on your new tab (you can download it here). We're going to build a simple Slackbot that displays random inspiring techie quotes and jokes for developers/designers. ![]() In this article, I'll walk you through building your first Slack bot from start to finish with Node.js and SlackBots.js PS: This article was published on my blog first. If you use Slack already, you should be familiar with some creative Slack bots like Standupbot, Birthdaybot and more. Your bot can send DMs, it can be mentioned by users, it can post messages or upload files, and it can be invited to channels. One of the awesome features of Slack is Slack Apps, integrations and Slack Bots.Ī Slack bot is a type of Slack App designed to interact with users via conversation. Teamwork in Slack happens in channels - a single place for messaging, tools and files - helping everyone save time and collaborate. Slack is a workspace where teams can communicate and collaborate. Slack is an American cloud-based set of proprietary team collaboration software tools and online services, developed by Slack Technologies. ![]()
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