-
MenuBack
-
Minicomputers
-
-
-
Raspberry Pi
-
Raspberry Pi 4
- Raspberry Pi 4B modules and kits
- Raspberry Pi 4B casings
- Raspberry Pi 4B power supply
- Raspberry Pi 4B memory cards
- Raspberry Pi 4B audio & video cables
- Raspberry Pi 4B displays
- Raspberry Pi 4B GPIO extensions and HAT
- Raspberry Pi 4B cameras
- Raspberry Pi 4B mounting elements
- Raspberry Pi 4B USB accessories
- Raspberry Pi 400
- Raspberry Pi Zero
-
Raspberry Pi 3
-
Raspberry Pi 3B+
- Raspberry Pi 3B+ modules and kits
- Raspberry Pi 3B+ casings
- Raspberry Pi 3B+ power supply
- Raspberry Pi 3B+ memory cards
- Raspberry Pi 3B+ video & audio cables
- Raspberry Pi 3B+ displays
- Raspberry Pi 3B+ cameras
- Raspberry Pi 3B+ GPIO extensions and HAT
- Raspberry Pi 3B+ mounting elements
- Raspberry Pi 3B+ accessories
- Raspberry Pi 3B
- Raspberry Pi 3A+
-
Raspberry Pi 3B+
- Raspberry Pi CM
- Raspberry Pi accessories
- Gaming Pi - consoles
- Raspberry Pi 2B+
-
Raspberry Pi 4
-
-
-
Raspberry PiIn this category you will find both the latest Raspberry Pi 4B minicomputers, as well as all the necessary additions with compatible accessories.
-
-
-
-
Arduino
- Arduino - main modules
- Arduino starter kits
- Arduino Shield - extension
- Arduino books
- Arduino sensors
- Arduino casings
- Arduino power supply
- Arduino - prototyping accessories
- ArduCam - cameras for Arduino
- Arduino displays
- Arduino - communication modules
-
-
-
BestsellerArduino is an Italian programming platform with I/O support and standard programming language. Systems are based on microcontrollers.
-
-
-
-
-
bbcThe BBC's Micro:bit education platform is a particularly popular in UK. Offers minicomputers, modules and accessories for learning and teaching programming.
-
-
-
-
-
odroidSeries of South Korean single board computers and tablets. Many of them can be operated not only with Android, but also with Linux distributions.
-
-
-
-
-
m5stackM5Stack sandwich modules received recognition among Japanese customers. They offer freedom of choice in terms of combining them into systems with selected functions.
-
-
-
-
STM32 modules
-
-
-
stm32Similar to Arduino, but... different. Often used at higher education institutions, STM32 are microcontrollers with high computing performance.
-
-
-
-
Arduino
-
-
avrAVR microcontrollers are a combination of microprocessors with components into integrated circuits. AVR family includes expansion modules, programmers and books on programming.
-
-
-
-
Friendly ARM
-
-
-
nanopiMicrocomputers equipped with numerous communication interfaces and peripheral modules. One of the most diverse families of single-board computers.
-
-
-
-
infoThanks to the appearance of many single board platforms dedicated to amateurs and hobbyists, minicomputers have become popular among enthusiasts of robotics and electronics. Check out other models available in Botland.
-
-
Electronics
-
-
-
Consumer electronics
- Animal repellers
- Automobile accessories
- Cameras and recorders
- Computer accessories
- LED lighting
- Memory cards & disks
- Smartwatches
- Sound and acoustics
- Tablets and smartphones
-
-
-
Elektronika użytkowaThe whole range of devices and components related to electronics including accessories and elements of electronic circuits.
-
-
-
-
-
-
-
-
Semiconductors
- AVR Microcontrollers
- Buzzers - sound generators
- Integrated circuits
- Microphones and sound detection
- MP3 / WAV / OGG
- Programators
- Transistors
-
-
-
-
-
Mechanical parts
- Cases, casings
- Clamps
-
Connectors
- 230 V network sockets
- Amphenol FCI connectors
- ARK connectors
- Banana connectors
- BLS connectors
- BNC connectors
- Connectors - 4-pin
- Connectors - FSF / FPC ZIF
- Connectors - goldpin
- Connectors - raster 2.5 mm
- Connectors - raster 2.54 mm
- Crocodile cables
- D-SUB connectors
- DC plugs and sockets
- Electric cubes
- IDC connectors
- Jumpers
- Mounting connectors
- Pogo Pin
- Quick couplings
- RJ network connectors
- Slip connectors
- SMA connectors
- USB connectors
- Wire tips
- Installation boxes
- Organizers for wires
- Prototype boards
- Self-adhesive feet
- Shrink tubes
- Standoffs
- Switches and buttons
- Wires
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Sensors
-
-
-
Grove
- Grove - starter kits
- Grove - base hats
- Grove - accelerometers and gyroscopes
- Grove - gas & dust sensors
- Grove - distance sensors
- Grove - temperature sensors
- Grove - light and colour sensors
- Grove - converters
- Grove - communication modules
- Grove - relays
- Grove - buttons, keys and joysticks
- Grove - motor drivers
- Grove - displays
-
-
-
tekstGrove series modules from Seeed Studio - more than 150 different modules with a simple interface, including adapters to ensure compatibility with Arduino and Raspberry Pi.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Other sensors
- Current sensors
- Fingerprint readers
-
Gravity modules
- Gravity - accelerometers and gyroscopes
- Gravity - actuators
- Gravity - base hats
- Gravity - buttons, keys and joysticks
- Gravity - cables
- Gravity - communication modules
- Gravity - converters
- Gravity - current sensors
- Gravity - displays
- Gravity - distance sensors
- Gravity - encoders and potentiometers
- Gravity - force sensors and limit switches
- Gravity - gas & dust sensors
- Gravity - LED
- Gravity - light and colour sensors
- Gravity - medical sensors
- Gravity - relays
- Gravity - sound modules
- Gravity - starter kits
- Gravity - temperature sensors
- Sensor sets
-
-
-
-
Robots and mechanics
-
-
-
-
robotyReady-to-use robots and all accessories, components and sub-assemblies necessary to create your own robot or robotic arm.
-
-
-
-
-
-
-
-
-
-
-
-
-
Tools and Power
-
-
-
-
akumulatoryEveryting for robotic, electronic and mechanic workshop, home DIY enthusiasts and all those who need power supplies.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Education
-
-
-
-
tekstFORBOT online and paper courses are great introduction to the vast world of electronics. Discover their possibilities and educational value.
-
-
-
-
-
-
-
-
-
3D print
-
-
-
-
druk 3d3D printing, in which objects are created layer by layer. Allows to create objects at home, but also has industrial and medical applications.
-
-
-
-
-
FilamentFilament for a 3D printer is the basic purchase right after purchasing the printer itself.
-
-
-
-
Accessories for 3D printersLike any machine, a 3D printer sometimes requires the replacement of the most heavily used elements, including nozzles or heaters.
-
Pokaż więcej
-
-
-
-
-
3D printing pensThe 3D pens let your imagination run wild while sketching in three dimensions.
-
Pokaż więcej
-
-
-
-
-
Laser cutting machineDevices that allow you to cut or engrave various types of materials, incl. in wood, leather, plastic, aluminum.
-
Pokaż więcej
-
-
-
-
-
3D scanners3D scanners are devices that can analyze the shape of an object. Data from scanners can be used in spatial modeling.
-
Pokaż więcej
-
-
-
-
-
Laser headsThanks to laser heads, you can engrave even the most complex patterns on various types of surfaces, e.g. leather, wood, textiles.
-
Pokaż więcej
-
-
-
-
-
CNC milling machinesToday, numerically controlled milling machines are the backbone of the manufacturing industry.
-
Pokaż więcej
-
-
-
-
-
2D printers and pens2D printers and pens will find their application in many areas, including in marking packaging, construction elements and pharmaceutical products.
-
Pokaż więcej
-
-
-
-
Smart Home
-
-
-
BleboxIn the category "BleBox - Home Automation" you'll find a wide range of home automation devices from the renowned manufacturer BleBox.
-
button
-
-
-
-
BroadlinkIn the category "Broadlink - Home Automation" you will find ready-to-use devices to turn any ordinary home into an intelligent building.
-
button
-
-
-
-
-
EuratechIn the "Eura Tech - home automation" category you will find a large selection of devices intended for use in the home automation system.
-
button
-
-
-
-
-
FibaroFibaro - home automation. In this category you can find elements of Fibaro home automation system.
-
button
-
-
-
-
-
ShellyAlthough it is possible to develop your own network of devices and sensors, it is much faster to use ready-made drivers - e.g. Shelly modules available in our store.
-
button
-
-
-
-
-
SonOffThis category includes Sonoff products - intelligent WiFi controllers.
-
button
-
-
-
-
-
Android Box - Smart TVAndroid Box is a solution that allows you to use multimedia functions on your TV even in the absence of adequate equipment.
-
button
-
-
-
-
-
AssistantsVoice assistants provide speech connection to the entire home automation system.
-
button
-
-
-
-
-
Other automation systems
- iNode - sensors and modules Bluetooth Android
- Inveo controllers
- BBMagic Bluetooth automation
- Tinycontrol controllers
- Neo home automation
- Zamel Supla home automation
- Z-wave executive modules
- Exta Life - sensors and modules
- Exta Free - sensors and modules
- USB Numato Lab GPIO drivers
- AST lighting drivers
- Coolseer home automation
- Tuya home automation
-
-
-
-
-
-
-
-
Others
-
-
-
Opis kategoriiGift vouchers in Botland store is a perfect option for everyone who is looking for a nice and practical gift.
-
button
-
-
-
-
-
-
InterestingA category in which we have collected various items, professional accessories as well as miscellaneous gadgets.
-
Pokaż więcej
-
-
-
-
-
GadgetsKeychains, mugs, mouse pads and other elements with technical motifs
-
pokaż więcej
-
-
-
-
-
New products
Display e-paper 4,2 '' 400x300px - Cloud Module - WiFi /...
Revolution Pi RevPi Compact 8GB eMMC - PLC module
Display E-paper E-Ink - 2.13'' 250x122px - SPI - black...
Display E-paper E-Ink - 2.9'' 296x128px - SPI - black and...
IPS LCD display 1.14 '' 240x135px - SPI - for Raspberry...
10 DoF IMU sensor - module with accelerometer, gyroscope...
Limit switch 50mm - Pololu 1403
Promotion products
WiFi EMW3165 Cortex M4 module with PCB antenna
Flammable gas sensor - XG30 - 230V
Stahlbar KL-17020 tool kit - 94 pcs
Rotary switch 3-position 4 circuits - 37mm
ESP32 Thing Plus DMX - driver for LED strips - SparkFun...
Circuitmess Ringo GSM educational kit - assembled
Infrared receiver TSOP4838 - 38kHz
Bare Conductive Touch Board Starter KIT - conductive...
Electrolytic capacitor 470uF/16V SMD - 5pcs
Electrochemical breathalyzer Xblitz ALControl
D-SUB 15 7,2 Angle type
Diode Schottky SK23 SMD
Optoisolators
An optoisolator (also called an optical insulator) is an electronic component and conductor that consists of one or more photoemitors. An optoiser transmits electrical signals between two isolated electrical circuits using light. The value of optical coupling in electronic circuits to ensure galvanic isolation was noticed as early as the 1960s. Back then, optoisolators were still based on photoresistors and light bulbs - the slowest, but also the most linear systems of this type. Such solutions still have their niche applications - for example in the audio and music industry. However, the mass commercialization of LED technology in the 1970s made it possible to develop more modern types of optoisolators, which are still available in stores today.
Multiple optocoupler LTV847 - THT - 5pcs.
4-channel transoptor, replacement for PC847. Transistor output. Maximum voltage 35 V. Housing: DIL16.Single Channel Optocoupler PC817 - THT - 10pcs
Optocoupler 1-CH. Transistor output. Maximum voltage 20 V. Case: DIP4. Items are sold in sets of 10 pieces.Nowadays, optoisolators are commonly used for galvanic separation of circuits in control and automation systems, as well as for work in measurement techniques. If you are creating a DIY electronic project that falls under the above categories, you will probably need a good optoisolator. Check out all the products below and choose the one that suits your individual project best!
The most important parameters of optoisolators
How to choose an optoisolator? As when choosing any type of electronic component, attention should be paid to detailed technical parameters. When choosing a galvanic isolator, regardless of the type, first of all, two parameters should be analyzed. The first is the maximum allowable baud rate. This parameter indicates to what extent the device will limit the communication speed through the optical isolation barrier. The second parameter, on the other hand, is the maximum permissible potential difference between the primary and secondary side of the system.
Most of the optoisolators available on the market use inexpensive, bipolar silicon phototransistor sensors. They achieve an average data transfer rate that is sufficient for applications such as signal isolation in automation or protection of digital interfaces. It is worth knowing that the fastest optoisolators use PIN photodiodes in the photoconductive mode.
Optical galvanic isolation systems
A characteristic feature of the optoisolator is that it contains a light source. It is almost always an IR LED that converts the electrical input signal into light, a dielectric optical channel, and a light detector that detects the emitter light. The device therefore generates electricity directly or modulates the electricity flowing from an external power source. This sensor may be a photoresistor, photodiode, photo transistor or phototriac. Since LEDs can detect light in addition to emitting it, it is possible to construct symmetrical bi-directional optical insulators using them. Typically, optoisolators transmit digital signals (on-off), although some techniques allow them to be used with analog signals.
In connection with the above, there are many advantages of using galvanic isolation in electronic systems. Electronic equipment, signal and power transmission lines can be subjected to voltage spikes induced by lightning, electrostatic and other discharges. Sudden spikes and spikes in voltage can permanently damage input circuits and entire electronic devices. However, if we use an optoisolator, it is possible to block such high voltages and their negative consequences for the entire electronic project.
Easy application of optoisolators
Modern integrated optocouplers only require a minimal amount of external components to operate. These devices function as galvanic isolators of digital lines. As a result, the input and output of the system work in the TTL logic standard - 5 V, 3.3 V and others.
Despite the fact that optoisolators are not essential devices for every project, on the other hand, the use of optoisolators for various integrated circuits is very simple. Only two resistors are needed to implement a typical optoisolator with an LED diode and a phototransistor. In this category you will find multiple optocouplers containing several insulators in one housing, they facilitate assembly and reduce the surface area on the PCB taken up by galvanic isolation of signals. Be sure to check all products and contact us if necessary!