Simple Breadbordbuino :)

[kzbno]

A simplified breadboard version of the Gamebuino:

breadboardbuino.jpg (138.94 KiB) Viewed 5155 times

[erico]

Looks Hal!
lot´s of colorful cables.

[Myndale]

Awesome! I assume that's a Nano v3.0 on the right?

Also what level shifter are you using, a 74hc4050? (Not that it's really needed, according to the spec sheets the breakout boards are 5V tolerant...haven't had any problems myself at 5V either).

[kzbno]

Awesome! I assume that's a Nano v3.0 on the right?

[ Thx! It's the Arduino Nano v3.0 from ebay.com ]

Also what level shifter are you using, a 74hc4050? (Not that it's really needed, according to the spec sheets the breakout boards are 5V tolerant...haven't had any problems myself at 5V either).

[ CD4050BE. I was dreading that it would damage the LCD if I connected it directly to the Arduino. ]

[kzbno]

This controller has an easy to use SPI protocol and handles all the hard work of driving this display (multiplexing, generating bias voltages, ect.).
Driving the display is relatively easy with any microcontroller. However, it runs on and uses 3.3V logic, so you would need level shifters to shift the voltage down.

However, after doing lots of research it seems that the PCD8544 has a maximum voltage of over 5 volts, and that people can drive it perfectly fine on 5V, although it could reduce the life span of the display. I was willing to take the risk.

I decided to connect the VCC (power) connector to my Arduino’s dedicated 3.3V supply, and all the other lines to my Arduino directly. It worked perfectly and still does, with absolutely no issues. However, I do not recommend this so don’t blame me if you end up damaging your display!

What do you thing about this?