Magic 8 of Hearts
Contents
Components
This project consists of the following parts.
| Arduino Nano | PowerBoost 500 Charger - Rechargeable 5V Lipo USB Boost @ 500mA+ |
| White LEDs | Inductive Charging Set - 5V @ 500mA max |
| 1.44" 128*128 TFT LCD SPI | 3.7v 650mah Li-po Battery |
| MMA7361LC 3-Axis Accelerometer ±1.5/6g | FQP30N06L MOSFET |
| Perf Board | Split Heart |
| Not Shown | |
| 49 ohms resister (LED) | 150 ohms resister (LCD Backlight) |
| Reed Switch | 12k ohms resister (MOSFET Limiter) |
Prepare The Heart
Make a hole in the heart.
Make a insertable Perf Board
Layout the Board
After several tries, the components are placed on the board.
Wiring of Boards
| Arduino Nano Pin | Accelerometer Pin |
| A1 | X-Axis |
| A2 | Y-Axis |
| A3 | Z-Axis |
| A4 | Free Fall 0g |
| 3.3v | Sensitivity |
| 3.3v | Vdd |
| GND | GND |
| Arduino Nano Pin | 128*128 TFT LCD SPI |
| D5 | LED Backlight w/ 150 ohm resistor |
| D8 | A0 |
| D9 | Reset |
| D10 | CS |
| D11 | SDA |
| D13 | SCK |
| 3.3v | Vdd |
| GND | GND |
A reed switch (N.O.) connects Arduino Reset to GND.
Prepare the Screen
Classical wirewrap will connect the screen to the controller.
The screen is then glued into the front shell.
Solder up all the parts.
Power Plant
Place inductive charger receiver in back half of heart shell and glue in place.
Yes, I forgot to take a photo!
Place a rubber flap over unit to prevent shorts.
Arrange remaining power supply components.
Prepare another flap to insulate the power supply from the rest of the project.
Merge the Halves
