Friday, July 5, 2019

Crabbie : Interactive Development Board for Kids K-5th

Updates soon...




Saturday, June 1, 2019

ARDUINO MKR 1010 & Nano 33 IoT SHIELD

After a previous post we wrote about creating custom shields using the NI Multisim and NI Ultiboard, we have decided to try it again. Here is our version of a customized compatible MKR 1010 wifi. The dimensions are 61.5mm x 25mm. 28 header pins options and 4 mounting holes. This lightweight bare bones can take your project to the next level. Since the MKR 1010 provides wifi, bluetooth, li-po battery connection with charging & many I/O pins you will want to get your hands on our cool shields. Release date summer 2019. Contact us for pre-purchase.
 

Now about the Nano 33 Iot. Did you know Arduino is releasing four new boards this summer? We did and we are already planning to test them out with our new shields. Our engineering team is hard at work to provide you a custom bare bones boards to get your next gadget going.




Monday, May 27, 2019


This summer 2019. We can hardly wait! Just think of all the possibilities this small, lightweight microcontroller can do. 

New Arduino Nano 33 IoT
1. Secure WiFi and Bluetooth connectivity with a 6-axis IMU.
2. Pre-certified module with external processor ensures maintaining RF compliance when writing application code versus ESP32 modules where modifying code impacts certification.
3. On-board DC-DC power supply enables the board to be powered up to 21V maintaining high efficiency and offering a lot of current to external devices without overheating. This is a big improvement over other products on the market that have LDO and heat up quite a bit when powered at high voltages.

The Nano 33 IoT is essentially a MKR WiFi 1010, but sacrifices a battery charger and shield compatibility in favor of a miniaturized footprint and lower cost. The Nano 33 IoT is built around the ESP32, which is primarily aimed at WiFi but supports Bluetooth as well, although with higher power consumption than the Nano 33 BLE.




Sunday, May 26, 2019

Matlab on iPhone & iPad Devices

Do you want to use your iPhone or iPad to collect data from built in sensors such as acceleration, angular velocity, orientation, magnetic field, and GPS?


In this blog I will explain how to use MATLAB to collect data and log it.

First you will need access to MATLAB. Next, download the Mobile MATLAB app via Apple Store. From your lab top you will need to download the add-on 'MATLAB Support Package for Apple iOS Sensors'. 

Once all downloads have been made, open the mobile app and press the icon at the bottom right labeled 'More'. There you will see the Sensors option. Press it. This opens the menu for five (5) different built-in sensors. To begin, turn on one or more sensors. After the selection has been made, you can stream to MATLAB or log the data. 

Next, press the start button to collect data from your iOS device. *Before getting started you can change the frequency. If you chose to log the data, access the new file by pressing the icon to the right of the start button. See screenshots below.



Below is the link to the shared folder for reference. Use it as you please and please follow this blog.
Shared Folder - My iOS MobileSensorData


Look for more tech blogs like this. Simulink on Apple iOS Devices. Feel free to email me for questions.

Sunday, April 21, 2019

Atanua| 74ls85 4-BIT MAGNITUDE COMPARATOR

Today's blog is about the 74ls85 TTL. To build a circuit with this chip you will need two 4 pack dip switches and three led's. A datasheet is below. This TTL will compare the combined value for the 4-bit input of A inputs vs the B 4-bit inputs. The output will send a high to only one of the led's, AB depending on the condition. 




Comparison of words greater than 4-bit can be accomplished by cascading 'ls85 as described in the data sheet. The 74ls85 compares two separate 4-bit words, or numbers, coming from two different sources, such as counter, shift register, etc., including hard-wiring one number on the chip. One 4-bit word is placed on the inputs A0 thru A3, with the Least Significant Bit on A0. The other word is placed on inputs B0 thru B3 A 7 segment display can be implemented in the circuit by joining the inputs to a decoder that leads to the display. This will show numeric values.


Acrylic Laser Cut Cubes

Want to make a cube or boxed casing for a project? 




Making project encloses are not so difficult. I wanted to make a sample box before jumping into a customized case so this is the outcome. Let's see how it is made:

First having access to a laser cutter is essential. I was able to use a Full Spectrum laser cutter. The pattern I used was generated using MakerCase

MakerCase is a software specifically designed for easy laser cut casing.





Design specs in MakerCase
  • Units: Inches
  • Dimensions:1x1x1
  • Material Thickness: 1/8
  • Edge Joints: Finger
Next I generated the laser cut case plans. 


*Converting from one format to the other may be necessary.

A test cut was done on cardboard before I proceeded with the acrylic. 

Now that the test cut for this simple acrylic cube was a success you can expect to see more intricate designs and projects using acrylic and wood in the future.
Contact us for custom laser cut boxes via bits4bots@gmail.com

NI Multisim: Alphanumeric 15 segment display | Wired

Wire an alphanumeric 15 segment display. Display a message, characters, & more!

Download free Multisim files at www.bits4bots.shop/blog 

Create your message using 7 segment displays in your next project.




Alphanumeric characters comprise the combination of the twenty-six characters of the alphabet (from A to Z) and the numbers 0 to 9. Therefore, 1, 2, q, f, m, p and 10 are all examples of alphanumeric characters. Symbols like *, & and @ are also considered alphanumeric characters.

Arduino| Message on a single 16 segment display

Hi makers, here's a mini project that shows how to use 1 alpha numeric segment to display a message.



Create a single message on an Alphanumeric display.

Doodle Doggie Badge

Badge Life - DIY Doggy Blink Badge DIY led puppy badge. White PCB in a puppy shape. DIY to wear. Try adding color. Customize it! Ru...