Components

MMBT4403 is the PNP transistor of general use in SMT SOT-23 package. More details in the datasheet.

Potentiometer of variable resistance of 10k which can be used on an experimental board, but it can also be installed in the housing. They can be used for various types of control, eg. Setting how the brightness of LEDs.

LM358 is probably the best known and most frequently used operational amplifier. One pack contains two op-AMPs, but one can be used as a buffer, and one to increase its voltage. It is very convenient and easy to use. Also, this is a dual supply op-amp, which means you can turn up positive and negative voltages.

AMS1117-3.3V is a linear voltage regulator that provides an output voltage of 3.3V. It comes in a SOT-223 SMD packaging. More details, as always, in the datasheet.

25x 330ohm resistor (for LEDs)

Classic NPN SMD transistor.

Screw terminal for PCBs with a width of 3.5mm pin with two contacts.

Micro-USB SMD connector for soldering to the printed circuit board. The same as it’s used to Croduino Nova, CP2102 USB to UART adapter.

Commonly used in a ceramic capacitor performance – Capacitor 100nF always come in handy 🙂

A 7-segment display is classical, often used and already familiar component. Size of a digit on the display is 0.56inch and the light it transmits is red. The display has a common cathode.

A 7-segment display is a classic, often used and already familiar component. The size of the digit on the display is 0.56inch and the light it transmits is red. The display has a common cathode.

Connecting to other devices and controllers from improvised power sources becomes truly simple with this terminal. Just use a screwdriver to tighten your wires to the terminal and you’re ready!

Connecting to many other devices and controllers from improvised power sources becomes truly simple with this terminal. Just use a screwdriver to tighten your wires to the terminal and you’re ready!

Crystal (oscillator) with a frequency of 16MHz.

USB mini-b female connector for a printed circuit board (PCB). It’s identical to the one used on Croduino Basic.

This is a pretty ordinary signal diode 1N4148. It is used for signals up to 200mA of current.

Ordinary and well-known rectifier diode 1N4007. It’s often used for rectification of voltage, protection from the wrong polarity, different projects with breadboard etc.

Max. voltage that this diode can endure is 1000V and max. current it can carry out is 30A.

MOSFET transistor N-channel has ideal characteristics that allow it to connect to Croduino/Arduino. With this transistor, you’re able to control devices that need big amounts of current or voltage – all of that via a microcontroller.

A rotary encoder can be rotated endlessly – it has no end. That’s the main difference between it and the potentiometer and the reason why it’s more suitable for usage in certain applications. Its output (rotation outcome) is written in gray code, therefore you’ll need a microcontroller in order to use it.

It also has inbuilt pushbutton which makes it suitable for different selections.

78m05, often used 5V linear regulator in DPAK SMD package.

In a buzzer speaker, current is run through a coil of wire that produces a magnetic field. The flexible ferromagnetic disc is attracted to the coil when current is flowing through it and returns to a “rest” position when current is not flowing through the coil. The sound from the buzzer speaker is produced by moving a ferromagnetic disc in a similar way to a cone in a speaker.

A male connector that is usually found on our power supplies. For use with our controllers and amplifiers.

Standard USB A type connector for the Printed Circuit Board(PCB). It can be used as the USB connection, connection for the charger or something else.

Pushbutton is a small button that fits with the breadboard. It has two states: connected(ON – when the button is being pressed) and disconnected(OFF – when the button is not being pressed). It can be used, for example, as a switch. This pushbutton comes in Croduino for beginners set.