RPi Airquality Station: Logging Airquality-Data to GrafanaJanuary 28, 2019Network, Raspberry Pi What you need to know: Getting started with node-red Parts List: Full easybotics air-quality station kit Raspberry pi Internet Connection Setting up node-red: Start Node-Red and navigate to 127.0.0.1:1880 using the web browser. Drag in all the… Read More
RPi Node-Red: BME280 Temperature Pressure HumidityDecember 6, 2018Node-Red, Raspberry PiParts List: Video Tutorial: https://youtu.be/weV_11rpO1M Setting up the Hardware VIN -> 5V GND -> GND SCL -> SCL #3 PIN3 SDA -> SDA #2 PIN5 Setting up Node-Red First we'll investigate the BME node and how it works Drag… Read More
RPi Node-Red: Minimal Selfie Station TutorialNovember 14, 2018Node-Red, Raspberry PiGoal: setup the RPi's software and hardware to create a minimal selfie station. Utilizing node-red, and a few components like the RPi camera and the led ring. What you will learn: Advanced node-red usage, using hardware with node-red, how to… Read More
RPi Node-Red: BuzzerOctober 27, 2018Node-Red, Raspberry PiParts List: What is a Piezoelectric Buzzer?A piezoelectric buzzer is a buzzer that is activated with an oscillating electric signal. This means to produce a tone the buzzer must be turned on and off many times per second. The faster… Read More
RPi Node-Red: PIR + RGB LED or BuzzerOctober 15, 2018Node-Red, Raspberry PiParts List: Getting Started:Setting up the HardwareSetting up Node-RedStart Node-Red and navigate to 127.0.0.1:1880. Drag one Raspberry Pi input node and five Raspberry Pi output nodes into the flow area.Double click on the Raspberry Pi input node to open its… Read More
RPi Node-Red: RGB LEDOctober 1, 2018Node-Red, Raspberry PiParts List: Video Tutorial: https://www.youtube.com/watch?v=P0tqWYL7eSo Setting up the hardware:Setting up on Node-Red: Setting up Out Nodes Setting up Inject Nodes: Deploy the flow Read More
RPi Node-Red: Push ButtonSeptember 28, 2018Node-Red, Raspberry PiParts List: What is a Push Button?A push button is a momentarily activated button. When the button mechanism is fully depressed an internal electrical connection is made and this newly made connection can be read as the activation of the… Read More
RPi Node-Red: automatically running node-red, as rootSeptember 19, 2018Raspberry PiThis tutorial shows you how to have node-red start and run as root instead of a normal user. This is necessary for the RGB Matrix node: node-red-contrib-easybotics-led-matrix Open a terminal and paste in the following lines: sudo systemctl enable nodered.service sudo npm config set unsafe-perm true… Read More
RPi NMAP Network IP ScannerJuly 3, 2018Network, Raspberry Pinma[p can be used to scan your local network for valid IP address - IE to find other RPi or laptops on your local network. install: sudo apt install nmap scan your local network if on 192.168.0.0 sudo nmap -sn… Read More
Selfie station example projectJuly 2, 2018Camera, Growth Mindset, Raspberry PiHere is an example of an applied design thinking project done with a class of 17 students at the University of Hawaii Hilo Upward Bound T³ Alliance during the summer of 2018. Node Red and physical Raspberry Pi setup instructions… Read More