WIZIBERRY – Terminal with QWERTY keyboard and DisplayFEATURES:

• Smallest as possibly 79x69x8mm
• Absolute minimum components.
• Speaker
• free GPIO header
• Reset button
• power switch controlling internal buck-boost
• optional keyboard button Backlight

Working software features (demo codes):

• circuitpython display example
• micropython display example
• arduino display example
• arduino keyboard example

Supported displays:

• 12pin st7789 IPS 240x240 via flex cable 1.3" inch
• 12pin st7789 IPS 240x240 via flex cable 1.54" inch
• 8pin st7789 IPS 280x240 via flex cable 1.69" inch (rounded corners)
• 8pin st7789 IPS 240x240 via header
• 8pin GC9A01A IPS 240x240 via flex cable
• any display with popular china module pinout GND,VCC,SCK,DAT,RES,DC,CS,BACKLIT

Required components:

• 1x w5100s-evb-pico
• 30x DTS63K tactile switch 7mm height, Or another 1N force is very comfortable to press
• 1x BSS123 Transistor for display backlight
• 1x 10R 0603 Resistor for display backlight
• 1x 4k7 Resistor for display backlight
• 1x LPT1109DS PIEZO sound beeper
• 1x JS202011CQN C&K or MSS-2235 NINIGI Side Switch For power off but it work without

SWOT analysisStrengths:

• no competition
• simple as possible
• cheap
• beautiful design (I'm shameless)
• qwerty keyboard
• HD IPS display - onboard
• any display, iPS, TFT, OLED, eInk by wires, need just redesign front panel
• circuitpython
• micropython
• arduino core

Weaknesses:

• my programing knowledge for make use case examples is basic

Opportunities:

• GUI learning tool
• native USB
• ETHENRNET possibility, there is big opportunity in application where is needed something like networking plug and play ... quick connect to LAN with DHCP configuration, etc. simple terminal
• standalone computer programmable in basic or micropyton

Threats:

• I am blinded by my enthusiasm

Operating system

WiziBerry is great for development & experiments , you can chose application at startup.

SCHEMATIC

FRONT COVER PANEL

Motherboard overview

Optional keyboard backlight

CODE EXAMPLES and DEFINITIONS

  #define TFT_CS        17
  #define TFT_RST       21
  #define TFT_DC        16
  #define TFT_MOSI      19
  #define TFT_SCLK      18
  #define TFT_BACKLIGHT 20 //Display backlight pin 

  #define speaker       0  

byte colPins[COLS] = {1, 2, 3, 4, 5}; //connect to the column pinouts of the keypad
byte rowPins[ROWS] = {6, 9, 15, 8, 7, 22}; //row pinouts of the keypad

char directKeys[ROWS][COLS] = {
  {KEY_RETURN, ' ', 'm', 'n', 'b',},
  {KEY_DELETE, 'l', 'k', 'j', 'h',},
  {'p', 'o', 'i', 'u', 'y',},
  {KEY_SHIFT, 'z', 'x', 'c', 'v',},
  {'a', 's', 'd', 'f', 'g',},
  {'q', 'w', 'e', 'r', 't',}  
};