weenyMo is (yet another) Belkin Wemo emulator, providing Alexa voice control for your ESP8266 (in Arduino IDE) in about the smallest "footprint" you will find
There's Fauxmo and others, but they all seem to send more data than they need to Alexa, requiring big data strings and more complexity than absolutely required. One "famous" implementation is over 700 lines of code compared with weenyMo's less than 70. Let's face it: 90% of IOT devices just switch on or off... Why then have more code than you need, especially 10x more? I decided to see how much could be cut away while still providing "switch on" / "switch off" functionality
Here's another reason: this is it, all there is to it: Once object constructor and one function.
#include<weenyMo.h>
//
// This function will be called when Alexa hears "switch [on | off] 'vee three'"
// ESP8266 builtin LED is "backwards" i.e. active LOW, hence Alexa's ON=1 needs reversing
//
void onVoiceCommand(bool onoff){
Serial.printf("onVoiceCommand %d\n",onoff);
digitalWrite(BUILTIN_LED,!onoff);
}
//
bool getAlexaState(){
Serial.printf("getAlexaState %d\n",!digitalRead(BUILTIN_LED));
return !digitalRead(BUILTIN_LED);
}
// The only constructor: const char* name, function<void(bool)> onCommand
// choose the name wisely: Alexa has very selective hearing!
//
weenyMo w("vee six",onVoiceCommand);
void setup() {
Serial.begin(74880);
pinMode(BUILTIN_LED,OUTPUT);
digitalWrite(BUILTIN_LED,HIGH); // start OFF
WiFi.begin("ssid","pass"); // replace OF COURSE
WiFi.waitForConnectResult(); // so much neater than those stupid loops and dots
w.gotIPAddress(); // ready to roll...Tell Alexa to discover devices.
}
void loop() {}If you know of or find anything easier / smaller - please let me know!
© 2019 Phil Bowles