How to change Heading size in blogger (h3, h4, h5)

If you want to change heading sub heading style

Edit the template :

then search "body {"
and finish by add before body style styles you want for h2, h3, h4  :

/* Content
----------------------------------------------- */
.post-body h2{font-size:30px!important;background:grey;color:white;
text-shadow:0px 0px 2px black;}

.post-body h3{font-size:20px !important;background:grey;color:white;
text-shadow:0px 0px 2px black;}

.post-body h4{font-size:15px !important;background:#ebebe0;color:black} 
body {
  font: $(body.font); ...

Thank you very much to the source :
http://www.alltechbuzz.net/add-custom-designed-subeadingh3-minor-headingh4-tags/

Adding some more info 

• if try to change h2 does not work add !important
• if try to change size for h3 does not work does the same

If you want to use firebug for CSS exploration

add in "template" then, "customize" then,  "advanced" and finally "add CSS" add (temporaly or not...)

.blogger-clickTrap{
display:none!important;
}

This will allow you to see style of your different item and then change them.

Playing with Arduino, HC-SR04, servo, DC motor, motor shield, ESP8266 and basic robotic platform

Well all is said in the title.... I red a lot about all this piece and finally  I decide to get them and start play with...

So let see the different element

Aduino R3 
for the control part hosting command software

Seed studio motor shield
for DC motor control

HC-SR04 sensor (x3) + servo

• to avoid collision mount on servo
• to avoid to drop down
• to see above

ESP8266 
for wifi comunication

HC-SR04 tests

to be able to use it :
1 : donwload and install the arduino "new ping library". See https://bitbucket.org/teckel12/arduino-new-ping/wiki/Home#!download-install and try the different examples.
2 : you could try to this very fun tutorial using processing software http://howtomechatronics.com/projects/arduino-radar/

After this test in face the fact that my micro servo is not very acurate so I have to find a new one.

Seed studio motor shield + Basic platform tests

To be done

ESP8266 tests 

To be done