Learn to control real devices via the Sonoff Basic Switch, by programming it and connecting it to the Arduino IoT Cloud.
Devices and components
Jumper wires (generic)
SparkFun FTDI Base Bypass – 3.3V
5 position male connector - 1 row - Long (0.1")
Sonoff Basic
Materials and tools
Soldering iron (generic)
Software and tools
Arduino IoT Cloud
Project description
Overview
Setting up Sonoff Basic (ESP8285)
3.3V - 3.3V
GND - GND
RX - TX
TX - RX
IoT Cloud
relay
boolean
device ID
secret key
#include "thingProperties.h"
//define the outputs
int relayPin = 12;
int ledPin = 13;
void setup() {
// Initialize serial and wait for port to open:
Serial.begin(9600);
pinMode(relayPin, OUTPUT); //define relay as output
// This delay gives the chance to wait for a Serial Monitor without blocking if none is found
delay(1500);
// Defined in thingProperties.h
initProperties();
// Connect to Arduino IoT Cloud
ArduinoCloud.begin(ArduinoIoTPreferredConnection);
/*
The following function allows you to obtain more information
related to the state of network and IoT Cloud connection and errors
the higher number the more granular information you’ll get.
The default is 0 (only errors).
Maximum is 4
*/
setDebugMessageLevel(2);
ArduinoCloud.printDebugInfo();
}
void loop() {
ArduinoCloud.update();
//leave the loop empty
}
void onRelayChange() {
// Add your code here to act upon Relay change
if (relay) {
digitalWrite(relayPin, HIGH);
digitalWrite(ledPin, HIGH);
}
else {
digitalWrite(relayPin, LOW);
digitalWrite(ledPin, LOW);
}
}
When the relay is true, enable relayPin and ledPin (write a HIGH state).
relay
true
relayPin
ledPin
When the relay is false, turn off the relayPin and ledPin (write a LOW state).
relay
relayPin
ledPin
relay
Full Code
arduino
1/*
2This sketch only works with IoT Cloud, with the right variables created inside of your Thing.
3*/
4
5#include "thingProperties.h"
6
7
8//define the outputs
9int relayPin = 12;
10int ledPin = 13;
11
12void setup() {
13 // Initialize serial and wait for port to open:
14 Serial.begin(9600);
15
16 pinMode(relayPin, OUTPUT); //define relay as output
17
18 // This delay gives the chance to wait for a Serial Monitor without blocking if none is found
19 delay(1500);
20
21 // Defined in thingProperties.h
22 initProperties();
23
24 // Connect to Arduino IoT Cloud
25 ArduinoCloud.begin(ArduinoIoTPreferredConnection);
26
27 /*
28 The following function allows you to obtain more information
29 related to the state of network and IoT Cloud connection and errors
30 the higher number the more granular information you’ll get.
31 The default is 0 (only errors).
32 Maximum is 4
33 */
34 setDebugMessageLevel(2);
35 ArduinoCloud.printDebugInfo();
36}
37
38void loop() {
39 ArduinoCloud.update();
40 //leave the loop empty
41}
42
43void onRelayChange() {
44 // Add your code here to act upon Relay change
45 if (relay) {
46 digitalWrite(relayPin, HIGH);
47 digitalWrite(ledPin, HIGH);
48 }
49 else {
50 digitalWrite(relayPin, LOW);
51 digitalWrite(ledPin, LOW);
52 }
53}
Full Code
arduino
1/*
2This sketch only works with IoT Cloud, with the right variables
3 created inside of your Thing.
4*/
5
6#include "thingProperties.h"
7
8
9//define
10 the outputs
11int relayPin = 12;
12int ledPin = 13;
13
14void setup() {
15
16 // Initialize serial and wait for port to open:
17 Serial.begin(9600);
18
19
20 pinMode(relayPin, OUTPUT); //define relay as output
21
22 // This delay gives
23 the chance to wait for a Serial Monitor without blocking if none is found
24 delay(1500);
25
26
27 // Defined in thingProperties.h
28 initProperties();
29
30 // Connect to
31 Arduino IoT Cloud
32 ArduinoCloud.begin(ArduinoIoTPreferredConnection);
33
34
35 /*
36 The following function allows you to obtain more information
37 related
38 to the state of network and IoT Cloud connection and errors
39 the higher number
40 the more granular information you’ll get.
41 The default is 0 (only errors).
42
43 Maximum is 4
44 */
45 setDebugMessageLevel(2);
46 ArduinoCloud.printDebugInfo();
47}
48
49void
50 loop() {
51 ArduinoCloud.update();
52 //leave the loop empty
53}
54
55void
56 onRelayChange() {
57 // Add your code here to act upon Relay change
58 if (relay)
59 {
60 digitalWrite(relayPin, HIGH);
61 digitalWrite(ledPin, HIGH);
62 }
63
64 else {
65 digitalWrite(relayPin, LOW);
66 digitalWrite(ledPin, LOW);
67
68 }
69}
Downloadable files
Circuit
Circuit
Schematic
Schematic
Circuit
Circuit
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