Home  |  Contents 

Microcontroller and PC projects
  Forum Index : Microcontroller and PC projects         Section
Subject Topic: Sensor.Engine:MICRO Post ReplyPost New Topic
Author
Message << Prev Topic | Next Topic >>
CircuitGizmos
Guru
Guru
Avatar

Joined: 08 September 2011
Location: United States
Online Status: Online
Posts: 1050
Posted: 08 August 2018 at 7:58am | IP Logged Quote CircuitGizmos

Here is the board that I designed for David. This is the Sensor.Engine:MICRO and the idea behind this board is to make a MicroMite aimed at STEM education and hobby experimentation.



This is a 28 pin MM. Most pins are available on the top edge. The top edge can be populated with pins pointed upward:



Pins up makes it easy to use female "Dupont" jumpers. Like these:
http://circuitgizmos.com/gizmo-store/Jumper-wires-100mm-F-F-M-M-p110033539


Or down:



To plug into a solderless bread board.


__________________
Micromites and Maximites! - Beginning Maximite


Back to Top View CircuitGizmos's Profile Search for other posts by CircuitGizmos Visit CircuitGizmos's Homepage
 
CircuitGizmos
Guru
Guru
Avatar

Joined: 08 September 2011
Location: United States
Online Status: Online
Posts: 1050
Posted: 08 August 2018 at 8:02am | IP Logged Quote CircuitGizmos

Pins down can also be dropped onto a sea-of-holes prototype board:





The board accepts an RTC module:





The goal is to make it easy to make sensor projects out of the 37 sensor kits:





__________________
Micromites and Maximites! - Beginning Maximite
Back to Top View CircuitGizmos's Profile Search for other posts by CircuitGizmos Visit CircuitGizmos's Homepage
 
CircuitGizmos
Guru
Guru
Avatar

Joined: 08 September 2011
Location: United States
Online Status: Online
Posts: 1050
Posted: 08 August 2018 at 8:12am | IP Logged Quote CircuitGizmos

The display is 64x128 I2C. Driver is already loaded into the library space.

The interface is via USB, and the console lines are still available.

There is an analog reference onboard.

Top row pinout:



Bottom row is all ground.

Middle row is called "common" and can be jumpered to 3.3V or 5.0V or externally to a voltage.

SD card is push-in and push-out. SD card can be used to log data. The basic file routines are in the library flash.

Three buttons round out the hardware.



__________________
Micromites and Maximites! - Beginning Maximite
Back to Top View CircuitGizmos's Profile Search for other posts by CircuitGizmos Visit CircuitGizmos's Homepage
 
Azure
Guru
Guru
Avatar

Joined: 09 November 2017
Location: Australia
Online Status: Offline
Posts: 435
Posted: 08 August 2018 at 9:04am | IP Logged Quote Azure

Very nice, hope it gets lots of users
Back to Top View Azure's Profile Search for other posts by Azure
 
CircuitGizmos
Guru
Guru
Avatar

Joined: 08 September 2011
Location: United States
Online Status: Online
Posts: 1050
Posted: 08 August 2018 at 9:14am | IP Logged Quote CircuitGizmos

Azure wrote:
Very nice, hope it gets lots of users


Thank you!

Alternate power input:





IR receiver support:




__________________
Micromites and Maximites! - Beginning Maximite
Back to Top View CircuitGizmos's Profile Search for other posts by CircuitGizmos Visit CircuitGizmos's Homepage
 
lizby
Senior Member
Senior Member


Joined: 17 May 2016
Location: United States
Online Status: Offline
Posts: 230
Posted: 08 August 2018 at 10:32pm | IP Logged Quote lizby

Very nice design.

Since many of the "37-sensor" modules have the pinout "-", "+", "S" (for "Signal", I guess), if a portion of the 3-row section had female headers soldered in, some sensors could be plugged in directly (end-user option). (Or one could use the female "long-pin" headers so that either module plug-in or breadboard could be used.)

I like the breadboard option--plug I/O pin row directly into the breadboard and jumper 5V (or 3V3) and 0V.

If I were to make any suggestion, it would be to move the alternate power pins over a bit and add a pair of power pins to fit directly into a breadboard (the kind with + and - both on each side). (Although those pins could also go anywhere between the regulator and the MM.)

All in all, I think MM + 37-sensors is a very good concept.



Edited by lizby on 08 August 2018 at 10:39pm
Back to Top View lizby's Profile Search for other posts by lizby
 
CircuitGizmos
Guru
Guru
Avatar

Joined: 08 September 2011
Location: United States
Online Status: Online
Posts: 1050
Posted: 09 August 2018 at 1:38am | IP Logged Quote CircuitGizmos

Thank you for your kind words. Very much appreciated.

I see what you are saying about the power pins. There are breadboards with different spacings out to the solderless power rails, some with one row, some two. Also, would it be for 5V or 3.3V?

__________________
Micromites and Maximites! - Beginning Maximite
Back to Top View CircuitGizmos's Profile Search for other posts by CircuitGizmos Visit CircuitGizmos's Homepage
 
lizby
Senior Member
Senior Member


Joined: 17 May 2016
Location: United States
Online Status: Offline
Posts: 230
Posted: 09 August 2018 at 4:37am | IP Logged Quote lizby

This type would be my preference for breadboard.



Perhaps a jumper to select either 3V3 or 5V would be good.
Back to Top View lizby's Profile Search for other posts by lizby
 
CircuitGizmos
Guru
Guru
Avatar

Joined: 08 September 2011
Location: United States
Online Status: Online
Posts: 1050
Posted: 09 August 2018 at 5:18am | IP Logged Quote CircuitGizmos

I think this is something that might be worth doing. I'll suggest it for the next layout.


__________________
Micromites and Maximites! - Beginning Maximite
Back to Top View CircuitGizmos's Profile Search for other posts by CircuitGizmos Visit CircuitGizmos's Homepage
 
CaptainBoing
Guru
Guru
Avatar

Joined: 07 September 2016
Location: United Kingdom
Online Status: Offline
Posts: 633
Posted: 09 August 2018 at 4:09pm | IP Logged Quote CaptainBoing

lizby wrote:
This type would be my preference for breadboard.


MB-102 830 points.

very popular/common format - Search ebay for MB102 and look at the masses of stuff that comes back. A lot are from Chinese manufacturers and can be a bit stiff to insert wires, but they are cheap and plentiful.

I standardized all my breadboards on this format

Edited by CaptainBoing on 09 August 2018 at 4:11pm
Back to Top View CaptainBoing's Profile Search for other posts by CaptainBoing
 
CircuitGizmos
Guru
Guru
Avatar

Joined: 08 September 2011
Location: United States
Online Status: Online
Posts: 1050
Posted: 10 August 2018 at 1:11am | IP Logged Quote CircuitGizmos

On a related note, why on Earth are these boards marked like this?





__________________
Micromites and Maximites! - Beginning Maximite
Back to Top View CircuitGizmos's Profile Search for other posts by CircuitGizmos Visit CircuitGizmos's Homepage
 


If you wish to post a reply to this topic you must first login
If you are not already registered you must first register

  Search the forums using Google.
In the news...
 
Post ReplyPost New Topic
Printable version Printable version
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Powered by Web Wiz Forums version 7.8
Copyright ©2001-2004 Web Wiz Guide

This page was generated in 0.1406 seconds.
Privacy Policy     Process times : 0, 0, 0, 0.14