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  • Raspberry Pi Zero Prism

  • On The Raspberry Pi Zero in Terminal and type these commands to install theRTL8723BU Wifi+Bluetooth 4.0 module (should take about 1 hour to compile)First Lets install the Wifi driverspi@raspberrypi:~ $ sudo apt-get install raspberrypi-kernel-headers...
  • Code for single Esp32 Board

  • This is the code for everything on a single Esp32 Board. Since I didn't have the correct board, I needed to use two of them, and they communicate through the serial port.The Bluetooth packets address and raw data get printed to the Arduino Serial...
  • Clock in a Box

  • In order to access A4 and A5 of the Arduino, you will need to solder two (2) headers onto the board (at least on my version). I used male right-angle headers to save space.
  • Mounting the ESP8266

  • I use a Wemos ESP8266 board mounted on a small piece of veroboard to connect the ESP8266 to the relevant pins on the mainboard I2C connector.  In my case I use GPIO12 and GPIO13 (SDA A4, SCL A5) for my interface.
  • Connect all hardware components

  • Connect the accelerometer to the Arduino Mini VCC -> VCC GND -> GND SCL -> A5  SDA -> A4  Don't connect the battery, we will have to power up the Arduino Mini and upload the code first using an FTDI basic USB converter
  • Connections

  • // Connections // Raspberry Pi 4 : // L298N Motor Driver Module // GPIO 17 ----------------------- IN_1 // GPIO 27 ----------------------- IN_2 // GPIO 22 ----------------------- EN_A // GPIO 10 ----------------------- IN_3 // GPIO 9 -----------------------...
  • Attach pedal and buttons to arduino.

  • Use the negative points of the button and connect to the gnd pin of the arduino.Use the positive pin of the button to analog pins A3 and A4.Use the positive pin of the pedal to analog pin A2.
  • Assembly Code

  • ROA EQU 7FH ;es Reloj o es Alarma USR EQU 50H ;Unidades de Segundos del Reloj DSR EQU 51H ;Decenas de Segundos del Reloj UMR EQU 52H ;Unidades de Minutos del  Reloj DMR EQU 53H ;Decenas de Minutos del  Reloj UHR EQU 54H ;Unidades de Horas del...
  • Build and flash the Libros firmware

  • Support for the ESP32-S3 Open Book is very early at this time; there is no prebuilt firmware image, so you'll need to have both Visual Studio Code and PlatformIO installed. Download the Libros firmware from GitHub, open...
  • 3. Peripherals Setup: TFT Display Control

  • This step describes the TFT display setup for PiCon One. The TFT display I am using is the Adafruit 3.5 480x320 display with product ID 2050. The current pin assignment for this TFT on PiCon One v1.0a is matching the Adafruit 3.5 PiTFT (product ID 2097)....