This year there have been a few attempts at connecting your smartphone to your Arduino. (see Amarino, Adafruit’s BlueFruit UART) Thanks to the MakerHive I recently had a chance to play with the 1Sheeld and come up with a demo project for it.
The 1Sheeld is a board that plugs into an Arduino Uno (thus the misspelling of “shield”) and redirects the UART to Bluetooth so it can send/receive information to/from a smartphone. The PCB is a bit expensive at over $50, but it’s a complete solution that is really simple to program. It is seriously easier than the already-simple Arduino it rides on.
Once the 1Sheeld PCB is plugged into the Arduino and powered up it can communicate with the 1Sheeld app on a smartphone. Once connected, the app let’s you select from a number of “virtual shields.” Check out the list of possibilities. http://1sheeld.com/shields/
As a demo project, I made a talking HAL button for the MakerHive. The bot is supposed to greet visitors when the arrive and say good-bye when they left. It will also take a picture of the person and tweet it (the twitter feed will of course be chrome-casted to the TV in the Hive.) Check out the code and video below as well as the Hackster.io page for this.
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/* Hospitality HAL code using 1Sheeld and Arduino Uno By Michael Sizemore 5/14/2015 Hardware consists of Big Red Dome Button from sparkfun and a box of your choosing Arduino simply controls the LED in the Big Red Dome Button to make it look like HAL is talking */ #include <OneSheeld.h> const int pinLED = 9; bool isConnected = false; bool buttonPressed = false; String name = ""; void setup() { OneSheeld.begin(); pinMode(pinLED, OUTPUT); randomSeed(analogRead(0)); } void action() { TextToSpeech.say("Welcome"); HALspeaks(1000); OneSheeld.delay(1000); TextToSpeech.say("Okay, switch to the Voice Recognition shield and tell me your name"); OneSheeld.delay(500); HALspeaks(3400); while((!VoiceRecognition.isNewCommandReceived()) && (OneSheeld.isAppConnected())){ OneSheeld.delay(10); } name = VoiceRecognition.getLastCommand(); TextToSpeech.say("Good to see you" + name + ", Are you arriving or leaving?"); HALspeaks(3000); while((!VoiceRecognition.isNewCommandReceived()) && (OneSheeld.isAppConnected())){ OneSheeld.delay(10); } if (!strcmp("arriving",VoiceRecognition.getLastCommand())) { TextToSpeech.say("Great! Welcome to the MakerHive"); HALspeaks(2000); Camera.frontCapture(); OneSheeld.delay(3000); // Twitter.tweetLastPicture(name + " just got to the MakerHive!", 0); Twitter.tweetLastPicture(name + " just got to the MakerHive!", 0); } else if (!strcmp("leaving",VoiceRecognition.getLastCommand())){ TextToSpeech.say("Ok " + name +", see you next time!"); HALspeaks(2000); Camera.frontCapture(); // Twitter.tweetLastPicture("L8RS", 0); OneSheeld.delay(3000); Twitter.tweetLastPicture("Thanks for coming " + name, 0); } else TextToSpeech.say("I didn't catch any of that. Disconnect and try again."); } void HALspeaks (unsigned long duration) { // Make the button LED pulse as if it were talking unsigned long startTime = millis(); while ((millis()-startTime)<duration) { //HAL is talking int attackTime = random(0,300); int fadeTime = random(0,200); // ramp LED up for (int i = 0; i<attackTime; i++) { int j = map(i, 0, attackTime, 0, 255); analogWrite(pinLED, j); OneSheeld.delay(1); } // ramp LED down for (int i = fadeTime; i>1; i--) { int j = map(i, 0, fadeTime, 0, 255); analogWrite(pinLED, j); OneSheeld.delay(1); } } analogWrite(pinLED, 0); } void HALwaits () { // Make the button LED pulse as if it were talking int attackTime = 500; int fadeTime = 500; unsigned long startTime = millis(); // ramp LED up for (int i = 0; i<attackTime; i++) { int j = map(i, 0, attackTime, 0, 120); analogWrite(pinLED, j); OneSheeld.delay(1); } // ramp LED down for (int i = fadeTime; i>0; i--) { int j = map(i, 0, fadeTime, 0, 120); analogWrite(pinLED, j); OneSheeld.delay(1); } //HAL fades out analogWrite(pinLED, 0); } void loop() { if (OneSheeld.isAppConnected()) { if (!isConnected){ isConnected = true; OneSheeld.delay(5000); action(); } } else { isConnected = false; HALwaits(); } } |