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In regarding of stem project

Kumarharsh1 — Tue, 22 Mar 2022 01:45:56 GMT

Hello, I want to know about stem project, why it is useful and where it is useful and how ???

Creating square wave generators before buying a function generation/counter

scsiraidguru — Tue, 08 Feb 2022 17:02:11 GMT

I have been watching Karen's videos and find them interesting.

My Siglent SDS1104X-E 100 Mhz 4 channel Oscilloscope came.

1.) Using the built-in square wave to calibrate the 4 probes

This took a few days to get the probes as accurate as possible.   It took about 30-45 minutes per probe.

2.) Configuring a simple 1kHz square wave PWM with my Arduino

I connected up probe 1 of the scope to the output of the Arduino PWM pin to see how accurate the device was in a square wave PWM of 0, 64, 128, 192 and 255.   I wanted to see how much noise was on the Arduino using the 9V 1A power supply.   I need to dig in deeper to get the settings to get a PWM closer to 1kHz.

https://mc.scsiraidguru.com/?page_id=2338
I posted the readouts here.   Frequency was 975 Hz.   I will recreate the test and add the measurements from the scope.

3.) Configuring a simple 1kHz square wave PWM with my Raspberry Pi 4B

The Pi 4B set to

mc.scsiraidguru.com/

pwm = GPIO.PWM(ledPin, 1000) # Set Frequency to 1 KHz    This was 886-888 Hz
pwm = GPIO.PWM(ledPin, 1149) # Set Frequency to 1 KHz    This was 997 Hz to 1.003 KHz.

4.) Purchase a 3 channel bench power supply

The next item I am looking at is the Siglent SPD3303X-E 3 channel power supply. The frequency generator will have to wait.   I The test videos I saw on this power supply was very clean.

5.) Build square wave generators that are more accurate

I have been watching Karen's videos on 555 Timer and creating a 1 kHz, 10kHz, and 100 kHz square wave generator from scratch.   I have a nice selection of resistors, capacitors, and components to build with.    I thought this would be a great project to teach STEM with.    Any suggestions on getting a more accurate setup?

5.) Create a triangle wave generator

My code include fast calculation and response and saving data so as a controller arduino is capable or have to use it along with Matlab simulink

nikhilchotai — Sun, 20 Nov 2016 14:37:56 GMT

As i am controlling solenoid operated pneumatic valve along with pressure sensor and using rotary encoder as my code include calculation part, Now along with control part i want to save data or record data also so what will be better to use arduino only or have to use arduino with MATLAB simulink

domotic aplications for rasperry

Former Member — Sun, 19 Jun 2016 23:34:14 GMT

I would like to know if someone designed appplications for domotic

Quick talk on last year's design challenge

Workshopshed — Wed, 03 Feb 2016 10:43:50 GMT

I've been invited to talk to the London Arduino meetup, about the Enchanted Cottage project where I took a traditional weather house and filled it full of electronics and 3D printed mechanical parts. The plan is to talk about how I went about the design challenge and leave any technical questions for the informal session afterwards.

It's on February 17th in the City of London.

http://www.meetup.com/LondonArduino/events/228396793/

Also talking with

• Michael Margolis - Create a connected project with the ESP8266 module

• John Nussey - Developing a connected product: the story of the Ding Smart Doorbell

Shedule & Homework Robot - New Melody?

yuritikhonov — Sat, 27 Jun 2015 16:08:41 GMT

Good day comrade!

What is your favourite melody that you would like to hear performed by my [robot]?