Tutorial of Shift Register 74HC595, drivers like ULN2803, UDN2981, transistor BC327, making your designs more robust and reliable!
Complete Digital Clock including many features: Alarm, Temperature, Humidy, Dew Point, RTC and PIR (Presence Infrared Sensor).
Project tutorial by LAGSILVA
I created the Multiple LED Display Module to make prototypes faster and more easily using different types of displays (digital/LED matrix).
7 awesome cases for 7 different circuito.io-supported components. It's 3D time!
Project in progress by circuito.io team
The device displays animated GIF pictures on a rotating cylinder. The GIF pictures can be downloaded from a PC via Bluetooth.
Project tutorial by Harald Bauer
Replicate the 1976 KIM-1 computer on an Arduino. Pocket-sized 6502 coding! Use serial port, or add small PCB to make a stand-alone device.
Project tutorial by Oscar Vermeulen
You can use both configurations, but you need to consider the logic of input signal at base of transistor.
Take a look in this illustration:
PCBWay - http://www.pcbway.com/
I have translated all Arduino comments for a better understanding.
Please, take a look.
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