Hardware Prototyping with Arduino

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HARDWARE PROTOTYPING WITH ARDUINO TAYLAN PINCE

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MAKERS

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BACKERS

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FUTURE

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HOW DO WE GET THERE?

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PROJECT HOME MONITOR

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HOME MONITOR ▸ Temperature ▸ Humidity ▸ UV Levels ▸ Noise Levels ▸ Luminance Delivered over WiFi to central database

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app = Flask(__name__) app.db = dynamodb2.connect_to_region(AWS_REGION) @app.route("/entries", methods=["POST"]) def create_entry(): with app.db.table.batch_write() as batch: for entry_type in dict(ENTRY_TYPES).keys(): batch.put_item(data={ "entry_type": entry_type, "date_created": int(time()), "reading": request.json.get(entry_type) }) return Response(status=200)

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/* Temperature & Humidity */ float temperature = TH02.ReadTemperature(); float humidity = TH02.ReadHumidity(); /* UV */ long uv_exposure = analogRead(A2); /* Luminance & Noise */ int luminance = analogRead(A3); int noise = analogRead(A1);

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client.fastrprint(F("POST ")); client.fastrprint(endpoint); client.fastrprintln(F(" HTTP/1.1")); client.fastrprintln(F("Content-Type:")); client.fastrprintln(F("application/json")); client.fastrprint(F("Host: ")); client.fastrprintln(server_host); client.fastrprint(F("User-Agent: ")); client.fastrprintln(user_agent); client.fastrprint(F("Content-Length: ")); client.println(length); client.fastrprint(F("Connection: close")); sendData(client, payload, buffer_size);

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// Enable watchdog wdt_enable(WDTO_8S); for (int i = 0; i < total_packets; i++) { client.print( payload.substring(i * buffer_size, (i + 1) * buffer_size)); // Reset watchdog wdt_reset(); } // Disable watchdog wdt_disable();

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RESULTS

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PROJECT HOME MONITOR

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PHONE METER ▸ Air Pressure ▸ Temperature Transmitted to an iPhone in real time via Bluetooth LE

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uint32_t temperature = myBarometer.bmp085GetTemperature( myBarometer.bmp085ReadUT() ); BLEMini_write(0x0A); BLEMini_write(temperature >> 24); BLEMini_write(temperature >> 16); BLEMini_write(temperature >> 8); BLEMini_write(temperature);

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- (void)bleDidReceiveData:(unsigned char *)data length:(int)length { for (int i = 0; i < length; i += 5) { Float32 readingValue = data[i + 1] << 24 | data[i + 2] << 16 | data[i + 3] << 8 | data[i + 4]; if (data[i] == 0x0A) { NSLog(@"TEMPERATURE: %1.2f Celcius", readingValue); } else if (data[i] == 0x0B) { NSLog(@"PRESSURE: %1.2f Pa", readingValue); } else if (data[i] == 0x0C) { NSLog(@"ALTITUDE: %1.2fm", readingValue); } } }