Why use JavaScript in Hardware? GoTo Conf - Berlin
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The document discusses the integration of JavaScript with hardware, highlighting its popularity due to interactivity and instant gratification. It specifically mentions the Tessel platform, which facilitates prototyping using JavaScript and supports various programming languages. Additionally, it contrasts the use of V8 with Lua for embedded systems, advocating for Lua's efficiency and portability.
![A: Accessibility
// turn on an LED
scu_pinmux(g_APinDescription[ulPin].port,
g_APinDescription[ulPin].pin,
PIN_MODE | pin_modes[ulPin],
g_APinDescription[ulPin].func);
GPIO_SetDir(g_APinDescription[ulPin].portNum,
1 << (g_APinDescription[ulPin].bitNum),
GPIO_INPUT);
GPIO_SetValue(g_APinDescription[ulPin].
portNum, 1 << g_APinDescription[ulPin].
bitNum);
// turn on an LED
var tessel = require('tessel');
tessel.led[0].high();](https://image.slidesharecdn.com/gotoconf-november6th2014-141111121618-conversion-gate01/85/Why-use-JavaScript-in-Hardware-GoTo-Conf-Berlin-5-320.jpg)
![A: Event Based
var tessel = require('tessel');
var led = tessel.led[0];
var button = tessel.button;
// Sleep until the button is pressed
button.on('press', led.toggle.bind(led));](https://image.slidesharecdn.com/gotoconf-november6th2014-141111121618-conversion-gate01/85/Why-use-JavaScript-in-Hardware-GoTo-Conf-Berlin-6-320.jpg)
Why use JavaScript in Hardware? GoTo Conf - Berlin
- 1. Jon McKay @jonmckay Technical Machine Hardware Side JavaScript
- 2. “Forgive me for not being hip but why try so hard to put JS in new places?” - @farnsworth (HackerNews user) Source: https://news.ycombinator.com/item?id=6214838
- 3. A: Flourishing Ecosystem Source: http://adambard.com/blog/top-github-languages-2014/
- 4. Source: http://npmjs.org A: Prolific Community
- 5. A: Accessibility // turn on an LED scu_pinmux(g_APinDescription[ulPin].port, g_APinDescription[ulPin].pin, PIN_MODE | pin_modes[ulPin], g_APinDescription[ulPin].func); GPIO_SetDir(g_APinDescription[ulPin].portNum, 1 << (g_APinDescription[ulPin].bitNum), GPIO_INPUT); GPIO_SetValue(g_APinDescription[ulPin]. portNum, 1 << g_APinDescription[ulPin]. bitNum); // turn on an LED var tessel = require('tessel'); tessel.led[0].high();
- 6. A: Event Based var tessel = require('tessel'); var led = tessel.led[0]; var button = tessel.button; // Sleep until the button is pressed button.on('press', led.toggle.bind(led));
- 7. “In my view, the popularity of JavaScript comes down to two things: Interactivity and Instant Gratification” - @naunga (HackerNews user) Source: https://news.ycombinator.com/item?id=6217993
- 8. JavaScript on hardware is ideal for prototyping new ideas.
- 10. ● The Intel Edison module will initially support development with Arduino* and C/C++, followed by Node.JS, Python, RTOS, and Visual Programming support in the near future.
- 11. Live Demo Time! ● Blinky ● HTTP ● Modules
- 12. Case Study: Tessel Sign Parts: ● Tessel PCBs ● Laser Cut Logo ● Neopixels ● Tessel
- 16. Questions?
- 17. http://tessel.io [email protected] @technicalhumans
- 18. Appendix
- 19. How does Tessel Work?
- 21. CC3000 WiFi Chip Constant Connection Remote Deployment Mobile Friendly 32MB of Flash & RAM JavaScript-powered Node.js compatible Cortex M Processor Computation Horizontal Module Header Plug n Play Capabilities
- 25. 1(JS) 2(Lua) 3 4 5 6
- 26. User Land Driver Lua Binding declaration
- 27. Lua Binding declaration Lua-C bindings Firmware
- 28. Why not use V8?
- 29. ● Chrome’s JS engine ● C++ ● ~10mb memory required for each instance ● POSIX/Win32 environment
- 30. ● Embeddable language ● Written in C ● ~30kb memory ● Highly portable ● LuaJIT is 10x-100x faster than LuaVM
- 31. What about Post- Prototyping?
- 33. Fractal $40 $5
- 34. Read More About Fractal: https://github.com/technicalmachine/fractal-docs
- 35. Creation of Tessel Sign