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Type: Raspberry Pi Board
Version: 1.0.0
Author: Dubravko Penezic
Copyright: Creative Commons BY-NC-SA v 3.0
Implemented function:

  • Fix RPi BUS Cable Connection
  • 10 GPIO with bidirectional level shifting (5V or 3.3V)
  • I2C bus with bidirectional level shifting (5V or 3.3V)
  • RS232 bus with bidirectional level shifting (5V or 3.3V)
  • 2×10 headers for connecting to GND, 3.3V, 5V, 10 pins, I2C and RS232
  • Internal AS1117 3.3V voltage regulator (500mA, and 5.1V protection)
  • DS3231 RTC
  • DS1307 RTC
  • AT24Cxx EEPROM module with Write Protection option
  • FT232RL RS232 to USB adapter with straight or cross connection of TXD/RXD between RPi and FT232RL
  • 3 tactile switches connected to GPIO with 4pin header (GND and 3line to switches)
  • RGB LED (or 3 ordinary LED) with transistor controlled output (available on 4 pin header plus 5V) and LM317 current controller
  • 6 Selectable 3 pin header for selecting LCD screen BUS or 3 tactile switch and RGB LED possibilities
  • 16 pin female header for LCD screen connection

PCB Top & Bottom image:

Schematic in PDF format

Functional example

rpi_el_board.txt · Last modified: 2016/09/01 14:17 (external edit)