# MakerSpace Chat **URL:** https://metastudio.org/c/chipchat/36.md?page=2 [Latest](https://metastudio.org/latest.md) · [Categories](https://metastudio.org/categories.md) · [Tags](https://metastudio.org/tags.md) **Page:** 3 --- ## [Intensity change by varying the on\_time , off\_time of inbuilt-LED on Arduino](https://metastudio.org/t/intensity-change-by-varying-the-on-time-off-time-of-inbuilt-led-on-arduino/4457)
**Author:** [@ravi312](https://metastudio.org/u/ravi312)\ **Replies:** 4\ **Last updated:** [August 14, 2020, 4:27pm UTC](https://metastudio.org/t/intensity-change-by-varying-the-on-time-off-time-of-inbuilt-led-on-arduino/4457 "2020-08-14T16:27:00Z")
https://youtu.be/TdAcSeBjhWk So we discussed strategies to imitate PWM effect by changing on-time/off-time of the led on arduino. Keeping the on-time as 20 milliseconds and gradually decreasing it produces the smooth tr… --- ## [Battery 3.6v 1000mAh](https://metastudio.org/t/battery-3-6v-1000mah/4467)
**Author:** [@Farhan](https://metastudio.org/u/Farhan)\ **Replies:** 10\ **Last updated:** [August 11, 2020, 1:42pm UTC](https://metastudio.org/t/battery-3-6v-1000mah/4467 "2020-08-11T13:42:43Z")
What component is it and how is it working , --- ## [Switch with an LED | Arduino Basics](https://metastudio.org/t/switch-with-an-led-arduino-basics/4463)
**Author:** [@ravi312](https://metastudio.org/u/ravi312)\ **Replies:** 6\ **Last updated:** [August 8, 2020, 3:01pm UTC](https://metastudio.org/t/switch-with-an-led-arduino-basics/4463 "2020-08-08T15:01:43Z")
Here is implementation of today’s discussion, Used a switch to make an LED on and off with an external pull-up resistor. int buttonPin = 3; int led = 13; void setup() { pinMode(buttonPin,INPUT); pinMode(led,O… --- ## [ESP 01 and Arduino UNO](https://metastudio.org/t/esp-01-and-arduino-uno/4447)
**Author:** [@Farhan](https://metastudio.org/u/Farhan)\ **Replies:** 1\ **Last updated:** [August 5, 2020, 3:57pm UTC](https://metastudio.org/t/esp-01-and-arduino-uno/4447 "2020-08-05T15:57:51Z")
Sir please help, how ESP 01 and Arduino UNO can communicate with use AT command , and Also share circuit diagram. --- ## [Design and Build your own Centrifuge](https://metastudio.org/t/design-and-build-your-own-centrifuge/3443)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 3\ **Last updated:** [August 5, 2020, 6:58am UTC](https://metastudio.org/t/design-and-build-your-own-centrifuge/3443 "2020-08-05T06:58:45Z")
We all know centrifuge is used to separate substances in a liquid dispersion, based on their difference in density by spinning at very high speed. Centrifuge is a very useful device in a biology and chemistry lab, right… --- ## [Automated water pumping](https://metastudio.org/t/automated-water-pumping/4271)
**Author:** [@sandysat](https://metastudio.org/u/sandysat)\ **Replies:** 1\ **Last updated:** [July 31, 2020, 11:17am UTC](https://metastudio.org/t/automated-water-pumping/4271 "2020-07-31T11:17:15Z")
Scenario1: Overhead water tank overflows, because the pump is still pumping water into it. Scenario2: The water pump gets damaged because it’s trying to pump water, but there’s no water at (above) the footvalve. Scenar… --- ## [Change in current](https://metastudio.org/t/change-in-current/4313)
**Author:** [@Farhan](https://metastudio.org/u/Farhan)\ **Replies:** 7\ **Last updated:** [July 31, 2020, 11:12am UTC](https://metastudio.org/t/change-in-current/4313 "2020-07-31T11:12:00Z")
When I used the adaptor of 12 volt 3 amp, then the current takes the load approx ##2.5 ampere## but when I used the adaptor of 12 volt 5amp then the current takes the load approx ##0.36amp##.what was the reason behind i… --- ## [Develop Your own device to measure SPO2 and Heart Rate](https://metastudio.org/t/develop-your-own-device-to-measure-spo2-and-heart-rate/3991)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 2\ **Last updated:** [July 17, 2020, 11:48am UTC](https://metastudio.org/t/develop-your-own-device-to-measure-spo2-and-heart-rate/3991 "2020-07-17T11:48:20Z")
Heart Rate aka as Pulse rate and SPO2 which shows the oxygen saturation in the blood are two of the five vital signs of the human body. And also due to current Pandemic situation of COVID-19 spread it is really importan… --- ## [Design & Development of Contact-Less Sanitizer Dispenser Without Microcontroller](https://metastudio.org/t/design-development-of-contact-less-sanitizer-dispenser-without-microcontroller/4316)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 0\ **Last updated:** [July 16, 2020, 10:02am UTC](https://metastudio.org/t/design-development-of-contact-less-sanitizer-dispenser-without-microcontroller/4316 "2020-07-16T10:02:00Z")
Here is an attempt of development of Contact-Less Sanitizer Dispenser without using microcontroller. This development is done using an IR Led and IR Photo-transistor as pair of sensor whose output is fed to Op-Amp to c… --- ## [Your Project Ideas which you want to build](https://metastudio.org/t/your-project-ideas-which-you-want-to-build/4255)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 0\ **Last updated:** [July 8, 2020, 2:34pm UTC](https://metastudio.org/t/your-project-ideas-which-you-want-to-build/4255 "2020-07-08T14:34:33Z")
In this thread you can write down your project ideas and problem statement for which you want to do development and come up with some solution. The journey from your Idea to solution development will bring lots of chall… --- ## [Making your own Lab Instruments: Instruino](https://metastudio.org/t/making-your-own-lab-instruments-instruino/3438)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 0\ **Last updated:** [March 18, 2020, 7:54am UTC](https://metastudio.org/t/making-your-own-lab-instruments-instruino/3438 "2020-03-18T07:54:28Z")
How about making your own Lab Instruments, which will save you money, make you learn and have lots of fun. Making Lab Instruments is not so difficult in the era of Making/DIY Culture, but it is indeed so essential to ge… --- ## [Project 3: Buzz Sa Re Ga Ma Pa](https://metastudio.org/t/project-3-buzz-sa-re-ga-ma-pa/168)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 0\ **Last updated:** [June 10, 2019, 7:48am UTC](https://metastudio.org/t/project-3-buzz-sa-re-ga-ma-pa/168 "2019-06-10T07:48:02Z")
Welcome to Project 3: Buzz Sa Re Ga Ma Pa As you have already interfaced buzzer to arduino and generated the beep sound (Project 1: Blink-Blink-Beep- Beep), Cheers for it. But now lets take it a step ahead. The chal… --- ## [Clip Computer - without electronics](https://metastudio.org/t/clip-computer-without-electronics/3257)
**Author:** [@jtd](https://metastudio.org/u/jtd)\ **Replies:** 0\ **Last updated:** [February 12, 2020, 8:00am UTC](https://metastudio.org/t/clip-computer-without-electronics/3257 "2020-02-12T08:00:03Z")
How to build a digital computer - without electronics. https://archive.org/details/howtobuildaworkingdigitalcomputer\_jun67/page/n5/mode/2up Here is one implementation based on the above book.. https://hackaday.io/proj… --- ## [Project 2: Blinky Series](https://metastudio.org/t/project-2-blinky-series/126)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 0\ **Last updated:** [June 5, 2019, 11:46am UTC](https://metastudio.org/t/project-2-blinky-series/126 "2019-06-05T11:46:42Z")
I hope all of you have completed the Project 1: Blink - Blink Beep - Beep and procured all required Basic components. So Welcome to Project 2: Blinky Series The challenge is to interface at least 8 leds (max depends… --- ## [Construct your own Turtle Robot and Program it to draw different shapes](https://metastudio.org/t/construct-your-own-turtle-robot-and-program-it-to-draw-different-shapes/2646)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 0\ **Last updated:** [December 19, 2019, 11:08am UTC](https://metastudio.org/t/construct-your-own-turtle-robot-and-program-it-to-draw-different-shapes/2646 "2019-12-19T11:08:15Z")
Robotics fascinates all of us and we wish to have one small robot to have fun. So lets get into this challenge! Develop a turtle robot (wheel drive) which can move around on the surface and can also draw any shape by si… --- ## [Aeroponics - Can plants grow without soil and mililiters of water?](https://metastudio.org/t/aeroponics-can-plants-grow-without-soil-and-mililiters-of-water/890)
**Author:** [@jtd](https://metastudio.org/u/jtd)\ **Replies:** 41\ **Last updated:** [July 4, 2020, 2:41pm UTC](https://metastudio.org/t/aeroponics-can-plants-grow-without-soil-and-mililiters-of-water/890 "2020-07-04T14:41:04Z")
Plants can grow without soil. The earliest historical records show a hydroponic like cultivation in MExico during period 1150 – 1350 CE. Morehart, C. (2016). CHINAMPA AGRICULTURE, SURPLUS PRODUCTION, AND POLITICAL CHAN… --- ## [Building Contact-Less Thermometer (upto Digital Pre-Fabrication stage)](https://metastudio.org/t/building-contact-less-thermometer-upto-digital-pre-fabrication-stage/3475)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 23\ **Last updated:** [June 24, 2020, 3:23pm UTC](https://metastudio.org/t/building-contact-less-thermometer-upto-digital-pre-fabrication-stage/3475 "2020-06-24T15:23:47Z")
\[center\] \[/center\] Source:An office worker wearing a protective mask is screened with an infrared thermometer as he enters a building in New Delhi, India.(Photographer: Prashanth Vishwanathan/Bloomberg). Hello Makers … --- ## [Pulse Width Modulated Haptic Sensory Module](https://metastudio.org/t/pulse-width-modulated-haptic-sensory-module/3418)
**Author:** [@jtd](https://metastudio.org/u/jtd)\ **Replies:** 7\ **Last updated:** [March 17, 2020, 12:24pm UTC](https://metastudio.org/t/pulse-width-modulated-haptic-sensory-module/3418 "2020-03-17T12:24:06Z")
This project is for driving multiple Haptic Disc Mili Motors. The motors are mounted on a felexibile base or fabric and strapped to ones body. The motors are driven through inputs from some data source. Various cognitive… --- ## [Soft robots, plastic film and high voltages](https://metastudio.org/t/soft-robots-plastic-film-and-high-voltages/3258)
**Author:** [@jtd](https://metastudio.org/u/jtd)\ **Replies:** 1\ **Last updated:** [March 7, 2020, 1:58pm UTC](https://metastudio.org/t/soft-robots-plastic-film-and-high-voltages/3258 "2020-03-07T13:58:50Z")
This project is an attempt to make a soft robot. Eventual goal being to make a octopus like appendage. @VijayVigyanShaala suggested use of high voltage on films causes the film to deform. So, first step is to generate… --- ## [Build your own Led Artwork/Ornaments/Crafts](https://metastudio.org/t/build-your-own-led-artwork-ornaments-crafts/2664)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 2\ **Last updated:** [February 24, 2020, 5:37am UTC](https://metastudio.org/t/build-your-own-led-artwork-ornaments-crafts/2664 "2020-02-24T05:37:40Z")
LEDs are fascinating and specially when they emit light, they are used almost in every application. Using LEDs in art ,craft and ornaments is real fun. Below is the image of micro Christmas tree craft having 5 leds run… --- ## [Make your own Gaming Station!](https://metastudio.org/t/make-your-own-gaming-station/688)
**Author:** [@ravi312](https://metastudio.org/u/ravi312)\ **Replies:** 5\ **Last updated:** [January 10, 2020, 6:32am UTC](https://metastudio.org/t/make-your-own-gaming-station/688 "2020-01-10T06:32:45Z")
In an era where touchscreen-based smartphones are ubiquitous, there was a time when people used to play games like Tetris and Snake in regular mobile handsets. Won’t it be interesting to redesign some of those retro-g… --- ## [DIY Wood-workbench](https://metastudio.org/t/diy-wood-workbench/1851)
**Author:** [@ravi312](https://metastudio.org/u/ravi312)\ **Replies:** 31\ **Last updated:** [January 8, 2020, 10:34am UTC](https://metastudio.org/t/diy-wood-workbench/1851 "2020-01-08T10:34:49Z")
After the success of the last week’s wood-workshop, the MakerSpace team felt the need for a dedicated wood workbench. https://stemgames.metastudio.org/t/starting-a-functional-wood-workspace/1707 The workbenches are des… --- ## [Pomodoro Timer using Arduino](https://metastudio.org/t/pomodoro-timer-using-arduino/2468)
**Author:** [@ravi312](https://metastudio.org/u/ravi312)\ **Replies:** 2\ **Last updated:** [December 3, 2019, 12:07pm UTC](https://metastudio.org/t/pomodoro-timer-using-arduino/2468 "2019-12-03T12:07:39Z")
Hi everyone Today I am going to share a project which has been long due on my bucket list. I was keen to make an analog version of Pomodoro TImer which I use often using my smartphone timer. So what is Pomodoro techniq… --- ## [Robotic Arm to play Piano](https://metastudio.org/t/robotic-arm-to-play-piano/1927)
**Author:** [@AJ.Bharath](https://metastudio.org/u/AJ.Bharath)\ **Replies:** 2\ **Last updated:** [August 27, 2019, 3:47pm UTC](https://metastudio.org/t/robotic-arm-to-play-piano/1927 "2019-08-27T15:47:38Z")
Hi all One of student made this project using Arduino and servo motors to play piano. (#younginnovators) #projects --- ## [Smart Badge to display COOOL STEM Badges](https://metastudio.org/t/smart-badge-to-display-coool-stem-badges/1603)
**Author:** [@jtd](https://metastudio.org/u/jtd)\ **Replies:** 4\ **Last updated:** [August 4, 2019, 6:55am UTC](https://metastudio.org/t/smart-badge-to-display-coool-stem-badges/1603 "2019-08-04T06:55:14Z")
ID badges are boring, especially in a conference. Instead we will build an OLED badge to display our name. Additionally the maker can display her COOOL STEM Badges on her sleeve - literally. And have COOOL messages sc… --- ## [Playing with Arduino](https://metastudio.org/t/playing-with-arduino/628)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 2\ **Last updated:** [July 6, 2019, 4:21pm UTC](https://metastudio.org/t/playing-with-arduino/628 "2019-07-06T16:21:12Z")
Arduino is a key tool to learn new things. Anyone - students, hobbyists, artists, programmers - can start tinkering just following the step by step instructions, or sharing ideas online with other members of the Arduino … --- ## [Project 1: Blink - Blink Beep - Beep](https://metastudio.org/t/project-1-blink-blink-beep-beep/122)
**Author:** [@Ashish\_Pardeshi](https://metastudio.org/u/Ashish_Pardeshi)\ **Replies:** 3\ **Last updated:** [July 1, 2019, 1:55pm UTC](https://metastudio.org/t/project-1-blink-blink-beep-beep/122 "2019-07-01T13:55:20Z")
Welcome to Project 1: Blink - Blink Beep - Beep https://stemgames.metastudio.org/uploads/default/original/1X/ece4b0dd7df9385ba00431a7baf7468885b4f889.webm Start by obtaining the required components listed in the link gi… [Previous page](https://metastudio.org/c/chipchat/36.md?page=1)