Présentation des projet des étudiants en génie électrique du Cégep Lionel-Groulx

Comme a presque tout les années depuis que j'ai graduer en Technologies des Systèmes Ordinées au Cégep Lionel-Groulx, j'assiste a la présentation des projets finaux.

C'est une présentation libre ou chaque équipe a un espace pour présenter son projet, en faire la démonstration et répondre au questions. C'est aussi une belle occasion pour les entreprises de recruter.

A l'arriver ont vous remet une feuille sur lequel ont vous demande de notez vos 3 meilleurs projets.

Cet année les projet était encore de très bonne qualité, seul une équipe ne pouvait démontrer son projet car il avait sauter la veille (et oui ça arrive). Il y avait beaucoup d'innovation, seul 1 projet a ma connaissance était une reprise des années passer.

Voici donc une petite description des projets présenter:

L’idée de ce projet est une plateforme qui peut bouger sur les 3 axes afin de garder une bille d'acier le plus possible au centre de la plateforme. Les estudiantins ont ut…

Montreal Arduino/Maker boutique

This morning I was looking for a few parts for some projects and was going to head to KGE, but searching on Google I found Future & Energies which was about at the same driving distance.

Their web site is not transactional so you can't seem to buy a lot of their stock online. Since it was 9h50am and they were only opening at 10h00am I fired an e-mail asking if they had what I needed in stock. The answer came in at 10h40am which is a decent response time.

So I headed to Ville Lasalle hoping not to catch too much traffic on the Mercier bridge.

I was happily surprise at the shop I found. Small boutique filled with stock. Arduinos (clones mostly), Pi, components, 3D printer stuff, solar kits, name it.

Price were decent and I did not have to pay any shipping.

Give them a try if you need parts and electronics stuff:

          Future & Energies
              514 508 2144
          Opening hours:

Servo motor adapters

Yesterday a friend on twitter (@Cleo_Qc) asked me if I had references to servo motor shaft/teeth dimensions. I did not have but a few google search and I found some valuable links and documents:

First this post which outlines the "standard" names used by Hitec servos:

This lead me to this post on which gives details on some attachment standard:

If you have more reference on the subject, feel free to post them in comments below.

Current and past projects portfolio


Connecting to a Wifi SSID from the macOS command line

Sometimes it's useful to be able to connect to an SSID (or switch from one to the other) from the command line. Here is how to do this on macOS (tested on High Sierra):

networksetup -setairportnetwork [interface] [SSID] [password]

For example:

networksetup -setairportnetwork en0 SSID1
networksetup -setairportnetwork en0 SSID2
networksetup -setairportnetwork en0 MyHouseSSID MyPassword

Using this command to connect to the same SSID your already connected acts as a reconnect.

Get wifi details from macOS command line

GUI is great but CLI is awesome. Here are a few macOS CLI commands go get wifi details:

Get details about your current connection/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I

Sample output:

     agrCtlRSSI: -61
     agrExtRSSI: 0
    agrCtlNoise: -90
    agrExtNoise: 0
          state: running
        op mode: station
     lastTxRate: 162
        maxRate: 300
lastAssocStatus: 0
    802.11 auth: open
      link auth: wpa2-psk
          BSSID: 9c:3d:cf:d0:e2:34
           SSID: Maison_5GHz
            MCS: 12
        channel: 36,1

Get the list of an SSID broadcast scan (aka list of available visible SSID)
/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -s

Sample output:

                            SSID BSSID             RSSI CHANNEL HT CC SECURITY (auth/unicast/group)
                         VLAN805 54:3d:37:d1:b5:c8 -42  11      Y  US NONE
                         VLAN205 54:3d:37:91:b5:c8 -43  11      Y  US NONE