QWERTY Keypad Touch Screen

[kennethlimcp]

Looking for feedback on brewing shield with touchscreen

Hi Guys, I am Elco Jacobs, the founder of BrewPi, an Arduino and Raspberry Pi based brewing temperature controller. I have just designed a PCB for a BrewPi Spark Shield and I would like to share it with you in hope you have some valuable feedback. Here is some background info to help you understand some of the design choices: Background In BrewPi, the Arduino runs all temperature control independently and the Raspberry Pi is used for data logging and providing a web interface. The main reas…