What kind of pins are used in the ULN2003?

What kind of pins are used in the ULN2003?

Common pin used for multiple functions. It is mostly known as test pins to turn on all the outputs. In some cases, it is also used as an inductive load. Output pins are the common ground within the ULN2003. Attach any load within 50V and 500mA from the outside to the Output to make the load functional.

Can a shift register be added to an ULN2003?

Once you have this one working, it is of course easy to add a shift register like the 74HC595 in front of ULN2003 to reduce the amount of pins needed on AVR side (3+2 required with a ‘595, and using I2C I/O expander it could even be reduced to 2+2 – and of course you can do the same on multiplex side to switch up to 8 displays with only 2-3 pins).

How to wire 7 segment multiplexing with ULN2003?

Good order to wire these is the following: Start with the ATtiny2313 and it’s VCC, GND and RESET pullup resistor Add the 6-pin header and wire it to ATtiny, VCC and GND Add power and you can now test if you can program the ATtiny Add ULN2003 and 330 ohm resistors, connect the ground pin and wire ATtiny PD0..PD6 to I1..I7

Can a ULN2003 be used as an inductive load?

ULN2003 has an internal flyback system protection and a pin too which can be used for an inductive load. We can control by any low voltage device like Arduino, Microprocessor or any other controller or IC. It operates without using any power source attached directly to it.

Which is a common ground in the ULN2003?

GND pin will be used as a common ground with both the Ground of the output power source and an input power source. Common pin used for multiple functions. It is mostly known as test pins to turn on all the outputs. In some cases, it is also used as an inductive load. Output pins are the common ground within the ULN2003.

What kind of applications can ULN2003A be used for?

ULN2003A can also be used to drive different motors (e.g. DC Motors or Stepper Motors) with Microcontrollers (like Arduino, PIC Microcontroller or 8051 Microcontroller etc.) . Some of the other applications of ULN2003 include logic buffers, lamp drivers, line drivers, LED display, motor driver circuits etc.