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  • Provisioning the Raspberry Pi

  • Next, you're going to get the SD card ready for booting the operating system on the Raspberry Pi. This begins with copying the official raspbian lite image to the SD card. This is a process that can be done in many ways, and it slightly differs depending...
  • Source Code

  • #include "SoftPWM.h" #include byte edgeLedPins[] = {13, A4, A5, 2, 8, 12}; byte middleLedPins[] = {10, 6, 3, 5, 9, 11}; byte innerLedPins[] = {A2, A3, A1, 4, 7, A1}; ADCTouchSensor touchSensor = ADCTouchSensor(A0, 1); void setup() {   Serial.begin(115200);...
  • Program the Microcontroller

  • Before mounting the prototype PCB to the housing, I recommend uploading the required sketch to the ATtiny84 microcontroller with a programmer of your choice. I used a USBtinyISP type shown in the picture. /*Sketch for the Scary Cat Project by Gene H*/...
  • Upload the Source Code to Arduino

  • Here’s the programming rationale behind the code, which you can download from the project files. The main idea is to generate a punchline that does never matches the joke. This makes the whole sentence not particularly funny, and probably confusing. ...
  • Arduino Code

  • // i2c and u8g library for 1306 oled display #include #include "U8glib.h" #define R_LOW 100 // 100k or 10k resistor, 1%, smd1206, 1/10 watt #define R_HIGH 5000 // 5M or 500k resistor, 1%, smd1206, 1/10 watt #define AREF 1.1 // Aref pin voltage #define...
  • NODE-RED CONNECTIONS!

  • The first thing we need is a basic flow to separate button presses into different outputs. [{"id":"50b49ab2.1e6f64","type":"mqtt in","z":"7805686.aa4fd98","name":"","topic":"button_glove","qos":"0","datatype":"auto","broker":"","x":310,"y":2180,"wires":[["ea9f502f.2dd17"]]},{"id":"ea9f502f.2dd17","type":"json","z":"7805686.aa4fd98","name":"","property":"payload","action":"obj","pretty":false,"x":490,"y":2180,"wires":[["425aef92.aa3da8"]]},{"id":"425aef92.aa3da8","type":"function","z":"7805686.aa4fd98","name":"ButtonSeperator","func":"var...
  • Run a Program

  • #include const char* ssid = "*********"; // Your ssid const char* password = "***********"; // Your Password float temp_celsius = 0; float temp_fahrenheit = 0; WiFiServer server(80); void setup() { Serial.begin(115200); pinMode(A0, INPUT); Serial.println();...
  • Understanding how to disconnect the speaker

  • moThe big black device in the middle of the printed circuit board (PCB) is the speaker (aka buzzer, or transducer). You can see a little slit in the one side where the sound comes out. There is a back side to the circuit board that you cannot easily...
  • I2C Sensors and debugging

  • I wanted to use a BMP280 I had in my parts bin for altitude measurements. I have used it in the past for a simple weather station and it works great! Turns out, it is even the go to sensor for Stratux, so I went ahead and plugged it in, activated it...
  • Wiring the Circuit

  • Once everything is securely glued in, it’s time for wiring! Use the provided schematic to connect all the jumpers to their appropriate pins. I’ll also provide the pin-outs below: (Note, this is for the Gravity Expansion HAT) Antenna Board: MI -> MISOMO...
  • The Spinning Spectrometer

  • Arduino Code// Arduino code for THE SPINNING SPECTROMETER // // This code is released under the beerware license: As long as you // retain this notice you can do whatever you want with this stuff. If we // meet some day, and you think this stuff is worth...
  • Attach the nosepoke wires to the LCD shield.

  • 1. Place three short pieces of heat shrink tubing around the bundle of 9 wires coming from the nose poke apparatus. Do not heat shrink these yet.  2. Route this bundle of wires underneath the relay module (you may want to unscrew it to do this). ...
  • Fan controller for Re:Load Pro

  • Make you the PCB and get the components and any standard 60mm 4-wire fan will probably do the job. I used a JMC "6015-12HB APW" that I had lying around. The exact the same fan is readily available on eBay.I used eagle to design my PCB, and the files...