In order to understand why “Red sky at night, sailor’s delight. Weather lore concerning the appearance of the sky, the conditions of the atmosphere, the type or movement of the clouds, and the direction of the winds may have a scientific basis and likely can predict the weather. National Park Service, NP Gallery But can weather lore truly predict the weather or seasons? Sailors and farmers relied on it to navigate ships and plant crops. Weather lore has been around since people needed to predict the weather and plan their activities. And in the morning, it will be foul weather today for the sky is red and lowering.” In the Bible, (Matthew XVI: 2-3,) Jesus said, “When in evening, ye say, it will be fair weather: For the sky is red. “Like a red morn that ever yet betokened, Wreck to the seaman, tempest to the field, Sorrow to the shepherds, woe unto the birds, Gusts and foul flaws to herdmen and to herds.” He said something similar in his play, Venus and Adonis. Have you ever heard anyone use the proverb above? Photo by Commander John Bortniak, NOAA Corps (ret). A small coastal freighter plying its way through a placid sea at sunset. Then the NeoPixel is initialized.Within limits, there is truth in this saying. Also a Particle function "Led" is setup, which will be used by IFTTT to change the colours. In the setup stage of the code, the pins for momentary switches are set to monitor an input. #define PIXEL_TYPE WS2812B Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE) int knop1 = D2 IMPORTANT: Set pixel COUNT, PIN and TYPE When you want to change a certain colour, just replace the current colour in the loop section of the code with one of the other colours defined here.īesides colours, the NeoPixel settings and pin are defined and also used pins for momentary switches and other used variables are defined: // Define colors (R, G, B)#define PEACH 200,50,5 To better understand the code we will briefly walk through it.Ī couple of colours are predefined. If you have connected your Photon, breadboard, NeoPixel ring and momentary switches in the same way as on the schematic in the previous step, you do not need to change anything to the code. It should automatically add the line #include "neopixel/neopixel.h" Then go to the library and add the NeoPixel library to the app you have just created so it will correctly recognize this library (otherwise it may give you an error while compiling the code). The only thing you may need to do is remove the line #include "neopixel/neopixel.h" Your Photon should be listed here.Ĭreate a new app and import or copy the code attached. To program the Photon, log on to with your Particle account. If it is not yet connected to the Wifi and/or linked to your Particle account, please follow this guide to connect it. When connected to the Wifi network, the LED on the Photon will breathe cyan. To work as an IoT device, the Particle Photon needs to be connected to your Wifi network and connected to your Particle account. Note: You may connect the Neopixel Ring IN and momentary switches to different digital pins, but you will then need to change the pin numbers in the code in the next step accordingly. The switch connected to pin D2 will be used to cycle through the colours, the switch connected to pin D3 will be used to turn the LED ring off. See the schematic on how to connect the Photon, NeoPixel ring and momentary switches to the breadboard. The two switches are then connected to pins D2 and D3 on the Photon. The momentary switches are fed with 3.3V DC from the 3.3V Pin on the Photon. We recommend using a breadboard for easy prototyping, but you may also directly connect the wires to your Photon.Ĭonnect PWR on the NeoPixel ring to the Photon's VIN pin.Ĭonnect GND on the NeoPixel ring to the Photon's GND pin.Ĭonnect IN on the NeoPixel ring to the Photon's D4 pin.įor testing purposes, we have connected two momentary switches to the Photon through a breadboard, so it is possible to manually change the LED colours as well. The NeoPixel ring can now be connected to Photon. The Particle Photon is powered through USB (use the Micro USB cable with adapter for this). The LED-ring is controlled by a Particle Photon, which combines a powerful STM32 ARM Cortex M3 microcontroller and a Cypress Wi-Fi chip and is easily programmable through the Particle development tools. To display the colors, an AdaFruit NeoPixel ring with 12 digital controllable WS2812B LEDs is used.
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