PiBoard was designed to be a compact expansion for the Raspberry Pi with buttons, and LCD screen and space for time and temperature components and connectors for further expansion: PiBoard v1.0 Board, PiBoard v1.0 Schematic.
Components
- Full 26 pin connector
- LCD
- DisplayTech S162GOD with contrast potentiometer
- Electronic Assembly EA-DOG-M with or without LED backlight in 5V or 3.3V mode
- 4 Buttons (TYCO)
- Reset button (not Raspberry Pi V1)
- I2C clock chip eg DS1307, DS1337 or PCF8563
- I2C temperature sensor eg DS1621
- 1-Wire (eg for temperature sensor DS18B20)
- External connector for Gnd, 5V, GPIOs 14, 15
- Header and External connector for GPIOs 28,29,30,31
- Zener diode protection for inputs
V1.0 has a number of faults, but does work:
- Either (a) the Raspberry Pi RCA video connector needs to be trimmed; or (b) [if not using the EA-DOG-M LCD, the PiBoard need sto be trimmed.
- The capacitors across the buttons are best omitted
- The location of the 1-Wire (Gnd, 3.3V, GPIO4) connector is in the way of a PiBoard capacitor.
- The buttons are too close to the EA-DOG-M (placement is tricky, but not impossible)
V1.0a is being designed to correct these and other shortcomings.
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