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-rw-r--r--slides/presentazione_espruino.rst122
1 files changed, 118 insertions, 4 deletions
diff --git a/slides/presentazione_espruino.rst b/slides/presentazione_espruino.rst
index fa06723..4f6a16f 100644
--- a/slides/presentazione_espruino.rst
+++ b/slides/presentazione_espruino.rst
@@ -118,17 +118,33 @@ Blink, seconda versione
.. image:: img/blink_text.png
:align: center
+------
+
+.. code:: javascript
+
+ var on = false;
+ setInterval(function() {
+ on = !on;
+ LED1.write(on);
+ }, 500);
+
Bottoni
-------
.. image:: img/button.png
:align: center
-Funzioni
---------
+------
-.. image:: img/function.png
- :align: center
+.. code:: javascript
+
+ var on = false;
+ var change = function() {
+ on = !on;
+ LED1.write(on);
+ };
+
+ setWatch(change, BTN1, {repeat:true, edge:"rising"});
DHT22
-----
@@ -136,30 +152,105 @@ DHT22
.. image:: img/dht22.png
:align: center
+------
+
+.. code:: javascript
+
+ var dht = require("DHT22").connect(C11);
+
+ dht.read(function (data) {
+ console.log(
+ "Temp is " +
+ data.temp.toString() +
+ " and RH is " +
+ data.rh.toString());
+ });
+
OLED
----
.. image:: img/display.png
:align: center
+------
+
+.. code:: javascript
+
+ function start() {
+ g.drawString("Hello World!",2,2);
+ g.flip();
+ }
+
+ I2C1.setup({scl:B6,sda:B7});
+ var g = require("SH1106").connect(I2C1, start);
+
Saving and loading
------------------
.. image:: img/display_interrupt.png
:align: center
+------
+
+.. code:: javascript
+
+ function draw_screen(data) {
+ console.log("Drawing the screen with data");
+ console.log(data);
+ g.drawString("Espruino demo", 2, 2);
+ if (data) {
+ g.drawString("Temp: "+data.temp.toString(),2,10);
+ g.drawString(" RH: "+data.rh.toString(),2,18);
+ }
+ g.flip();
+ }
+
+------
+
+.. code:: javascript
+
+ function start() {
+ dht = require("DHT22").connect(C11);
+ I2C1.setup({scl:B6,sda:B7});
+ g = require("SH1106").connect(I2C1, draw_screen);
+ }
+
+ E.on('init', start);
+
+ start();
+
Reading with a button
---------------------
.. image:: img/temp_with_button.png
:align: center
+------
+
+.. code:: javascript
+
+ setWatch(function(e) {
+ dht.read(draw_screen);
+ }, BTN, { repeat: true, edge: 'rising' });
+
Lowering contrast
-----------------
.. image:: img/contast_with_button.png
:align: center
+------
+
+.. code:: javascript
+
+ setWatch(function(e) {
+ g.setContrast(255);
+ dht.read(draw_screen);
+ setTimeout(function () {
+ g.setContrast(1);
+ }, 4000);
+ }, BTN, { repeat: true, edge: 'rising' });
+
Setting the date
----------------
@@ -172,6 +263,29 @@ Logging data
.. image:: img/logging_data.png
:align: center
+------
+
+.. code:: javascript
+
+
+ function start() {
+ [...]
+ fs = require("fs");
+ }
+
+ setInterval(function() {
+ dht.read(function(data) {
+ entry = "- {time: " +
+ Date.now() +
+ ", temp: " +
+ data.temp.toString() +
+ ", rh: " +
+ data.rh.toString();
+ console.log("saving: " + entry);
+ fs.appendFileSync("temp_rh.yaml", entry);
+ });
+ }, 60000);
+
Per proseguire
--------------