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the red and green LEDs will blink when data is transmitted/received by the FTDI chip
2022 – we've updated this PCB with Adafruit Pinguin to make a lovely and legible silkscreen - you may get the new PCB or the older version with vector fonts - both are identical other than the fancy silkscreen
There is now an auto-reset circuit so that it will reset the display on power up
specifically chosen for its excellent resistance to lots of soldering and desoldering (essential for prototyping boards)
so it is not designed to withstand water ingress without additional gasketting or protection
Protected GPIO Extender for Raspberry Pi Keypad the red and green LEDsProtect all your GPIO pins with this board. It sits comfortably in between your Raspberry Pi and your project to provide protection from accidental shorts or voltage slips. Each GPIO is protected by a 330ohm resistor to limit excessive current, and a zener diode to sink any voltage up to 5v meaning it is safe enough to use 5v logic sensors quickly and easily with your Raspberry Pi. Perfect for teaching environments to help prolong the life of your