When I use the Arduino board, there is one thing always trouble me, its I/O voltage level is 5V and it's not compatible with many 3.3V module like ITDB02 LCD and nRF24L01 2.4G wireless module. And if you want to connect the Arduino with a sensor or a servo , you need a expand shield like sensor shield V4, but I consider it still has enough space for these interfaces on the board , so I make a iteaduino which is an Arduino compatible board. It's designed is basing on Duemilanove scheme, 100% compatible to its existing program, shield and IDE. On the hardware part, remarkable changes are taken to improve the flexibility and user experience we referred to.
And we move the reset button and LEDs to the edge of the board, so it will not be covered again when put the shield above the Arduino.
A 1117-3.3 voltage is added to make a more powerful 3.3V power supply -- Arduino's 3.3V from FT232 is not enough for some module,like GPRS module.
Inherits all of Arduino Duemilanove' s features.
Compatible to Duemilanove's pin layout, screw hole and dimensions.
3.3V Operating Voltage selection
More visible location of Indicator LEDs
Pin out for Sensor and Servo
What are the changes from Arduino to iteaduino:
- More powerful 3.3V power supply
- 3.3V Operating Voltage selection
- Easier access to reset button
- More visible location for LEDs
- Sensor and Servo interface break out
- Re-route PCB
There may be still some inadequate on this board, any suggestion is appreciated.