Buisnes card for children day

Fast creation to celebrate children day - because all of us have child soul

satanistik

Following Follow project

Liked Like project

Become a Hackaday.io member

Just one more thing

To make the experience fit your profile, pick a username and tell us what interests you.

OK, I'm done! Skip

Public Chat

Similar projects worth following

438 views

0 comments

2 followers

2 likes

Description
Details
Files 0
Components 0
Logs 2
- View all
Instructions 0
Discussion 0

View Gallery

Public Chat

Description

Simple idea to use PCB board as a case. Sandwich construction help to minimalize thickens and add mechanical resistance. This is only prototype, next I can order professional pcb and add more - better sound, RTC, temperature sensor and SPI flash for more data. I have only one day for this project - but I do best I can.

Details

The goal of the project is to create 
a card that can be kept in a wallet, 
without exposed components that are
 easy to break off.
The target thickness is approximately
 2.5 mm determined by the liion cell. 
The way to achieve this goal is to use 
two sandwich-shaped PCB glued together. 
The components between the layers will 
be safe. 
Parameters:
-ATmega8 processor
-LCD 84x46 points
-Piezo speaker
-4 action keys
-2 function keys
-3v lithium cell power supply
-ISP port for programming

Things done:
-Functional prototype.
-LCD test program demo.
To do
-conversion to LiIon and charging system
-better sound system
-additional SPI memory
-write some games

Project Logs

Collapse

Some software progress
satanistik • 06/17/2024 at 20:05 • 0 comments
Making prototype
satanistik • 06/02/2024 at 10:50 • 0 comments
Tłumaczenie tekstu za pomocą aparatu
```
work I started by making
 printed circuit boards
 using the thermal transfer
 method, but this was not
 without problems because
 the printer did not want
 to accept coated paper.
```
Next, all milling I make using hand dril. In final version I plane to use two layers PCB but in prototype - all additional connection using wires and capton tape.
Finally assembled prototype have thickness 4mm determined by coin cell. In next generation I plane to use liion 2,4mm.
Current consumption oscillate about 3mA width running CPU and 87uA for power down and running LCD.