Filter by
Price
0 929
more (-5) ok clear
Manufacturers
more (530) ok clear
Filter

Promotion products

Recomendations

Communication

Products: 397
Loading...

Radio module - RFM12B/868D 868MHz - THT transceiver

Wireless radio module working on frequency of 868 MHz with the SPI communication interface. Powered with the voltage of 2,2 V - 3,8 V , the pins  are the goldpin...
4.0 (1)
Index: UCC-00594
Index: UCC-00594
Shipping in 24 hours
Available
Regular price €5.50 Price €5.50

WiFi module ESP-01M ESP8285 - 11GPIO, ADC, PCB Antenna

Wi-fi module based on the chip ESP8285. It works in the wi-fi 802.11 b/g/n standard. It is equipped with 18 pins - pitch of 1,6 mm, 11 of which are GPIO, 1 ADC and UART. It has...
5.0 (1)
Index: DNG-12252
Index: DNG-12252
Shipping in 24 hours
Available
Regular price €6.50 Price €6.50

DFRobot Gravity - OBLOQ UART IoT module for Microsoft Azure

Module introducing to the world of IoT (Internet of Things). It brings together systems of mobile, network technologies, creating an intelligent system. It makes that hardware,...
Index: DFR-11081
Index: DFR-11081
Shipping in 24 hours
Available
Regular price €12.50 Price €12.50

Si4703 development board with FM tuner - SparkFun WRL-12938

The development board with the Si4703 FM tuner. In addition to setting the FM Si4703 station, it can also detect and process radio RDS data, as well as information about radio...
Index: SPF-11155
Index: SPF-11155
Shipping in 24 hours
Available
Regular price €30.90 Price €30.90

GSM antenna - quad-band - SMA - Sparkfun - CEL-00675

Quad antenna operating in the GSM band, it has a male SMA connector. It works in the frequencies ranging from 850 MHz to 1900 MHz. Length is 57.4 mm.
Index: SPF-11199
Index: SPF-11199
Shipping in 24 hours
Available
Regular price €7.50 Price €7.50

RFiD keychain - 125kHz - 5 pcs set.

The set of RFID identifiers in the form of keychains and two cards. Each chip has a unique code. The device works at a distance of 2 - 5 cm from the reader , the carrier...
5.0 (2)
Index: SEE-11288
Index: SEE-11288
Shipping in 24 hours
Available
Regular price €3.50 Price €3.50

Velleman VMA405 - RFID MF RC522 MiFare 13,56MHz module + card and key ring

Board allows you to read and save data from RFID devices at 13.56 MHz frequency. The module is based on MFRC522 system, it is powered with the voltage from 3.3 V to 12 V, it...
Index: VEL-11603
Index: VEL-11603
Shipping in 24 hours
Available
Regular price €14.50 Price €14.50

WiFi module ESP8266 with an e-paper screen connector - compatible with Arduino - Waveshare 14138

Universal board for e-paper displays with built-in wi-fi ESP8266 module. Board compatible with Arduino. The supply voltage is 5 V, it has the SPI 3-wire and 4-wire interface....
5.0 (2)
Index: WSR-11924
Index: WSR-11924
Shipping in 24 hours
Available
Regular price €12.90 Price €12.90

Velleman WPI417 - RFID identification card - 13.56MHz - 10pcs

The RFID identifier in the form of a plastic card with the size of a payment card. Each chip has a unique 32-bit code. The device works at a small distance from the reader,...
5.0 (1)
Index: VEL-12203
Index: VEL-12203
Shipping in 24 hours
Available
Regular price €6.90 Price €6.90

DFRobot Shield NB-IoT/LTE/GPRS/GPS SIM7000E v2.0 - Shield for Arduino

Shield for Arduino, which allows you to send text messages and create connections in the GSM network. It also has GPS and LTE. It communicates via serial interface UART (RX,...
5.0 (1)
Index: DFR-12362
Index: DFR-12362
Shipping in 24 hours
Available
Regular price €54.50 Price €54.50

Feather Huzzah ESP32 - WiFi module, Bluetooth GPIO - soldered connectors - Adafruit 3591

The wi-fi module and Bluetooth, based on the system ESP32. On board is 8 GPIO ports with support for I2C and SPI, analog input and a connector with a 3.7 V lipol battery. It...
Index: ADA-10874
Index: ADA-10874
Shipping in 24 hours
Available
Regular price €29.50 Price €29.50

BroadLink RM4 Pro control station - universal remote control - IR / 433MHz

Broadlink RM4 Pro has the IR transmitter capabilities and radio waves of 433MHz. Thanks to that, it works as a universal remote control controlled through Wi-Fi network using...
4.6 (3)
Index: INN-12922
Index: INN-12922
Shipping in 24 hours
Available
Regular price €38.50 Price €38.50

Velleman VPI418 - Set of RFID key rings - 13,56MHz - 5pcs

The RFID /NFC identifier in the form of a keychain. Each chip has a unique 32-bit code. The device works at a small distance from the reader, the carrier frequency is 13.56...
5.0 (1)
Index: VEL-13009
Index: VEL-13009
Shipping in 24 hours
Available
Regular price €5.90 Price €5.90

Velleman VMA430 - GPS / GLONASS u-Blox NEO-7M UART module with antenna

GPS / GLONASS NEO-7M module on board with goldpin connectors mounted. It supports 56 channels , operates from 3.3 V to 5 V, communicates via the UART interface (TX, RX),...
4.6 (5)
Index: VEL-13032
Index: VEL-13032
Shipping in 24 hours
Available
Regular price €36.00 Price €36.00

Radio transmitter Feather 32u4 RFM95 LoRa Radio - 868MHz - Adafruit 3078

Radio transmitter/receiver operating in the LoRa standard powered with the rechargeable li-pol battery or via USB, it is running at frequencies of 868/915 MHz. Range, when...
Index: ADA-13280
Index: ADA-13280
Shipping in 24 hours
Available
Regular price €49.50 Price €49.50

GSM LTE Module IoT-u-GSM shield v2.19 BC95G - for Arduino and Raspberry Pi - u.FL connector

The module supports GSM and LTE communication. It allows for voice calls, sending SMS messages. On the board are: two connectors for SIM card, powering module for battery...
Index: ITB-13325
Index: ITB-13325
Shipping in 24 hours
Available
Regular price €45.00 Price €31.50
  • Reduced price
  • Promotion

Module GSM LTE NB IoT EGPRS GNSS - u-GSM shield v2.19 BG96 - for Arduino and Raspberry Pi - u.FL connector

The module supports GSM and LTE communication. It allows for voice calls, sending SMS messages. The better signal and accuracy is provided by the GNSS module with support for...
Index: ITB-13326
Index: ITB-13326
Shipping in 24 hours
Available
Regular price €60.00 Price €48.00
  • Reduced price
  • Promotion

Grove - module with Bluetooth 3.0 with EDR

Module from the Grove series, allowing to connect via Blootooth v3.0 + EDR, class 2. It works with a voltage of 5 V, it communicates through the Grove standard slot, it...
Index: SEE-13345
Index: SEE-13345
Shipping in 24 hours
Available
Regular price €20.50 Price €20.50

Slim Sticker-type GSM/Cellular Quad-Band Antenna - 3dBi uFL

Thin antenna operating in the GSM frequency band, it has an U. FL connector. It is w orking with modules c-uGSM and d-u3G. It has a layer of self-adhesive tape, cable length is...
Index: ODS-13809
Index: ODS-13809
Shipping in 24 hours
Available
Regular price €1.90 Price €1.90

Relay module 4 channels + Bluetooth 4.0 BLE - 10A / 250V contacts - 5V coil

The module has four SRD-05 relays with a coil powered with the voltage of 5 V, it was also equipped with a module Bluetooth 4.0 BLE allowing ot control the devices via Android...
4.0 (1)
Index: GRL-10909
Index: GRL-10909
Shipping in 24 hours
Available
Regular price €45.00 Price €45.00

RFID chip - 125kHz 25mm

Small token -  RFID identifier in the form of pill with a diameter of 25 mm. Small size allows for sewing it into clothing or for closing in any case. The carrier frequency...
4.0 (1)
Index: DNG-10707
Index: DNG-10707
Shipping in 24 hours
Available
Regular price €0.90 Price €0.90

Module LTE/GSM - u-GSM shield v2.19 EG91E - for Arduino and Raspberry Pi - u.FL connector

The module allows communication in LTE / GSM standard allows you to make voice calls, send SMS messages. On the board there are: SIM card connector , charging module for Li-Pol...
5.0 (2)
Index: ITB-13922
Index: ITB-13922
Shipping in 24 hours
Available
Regular price €94.90 Price €94.90

WiFi antenna 10dB RP-SMA female - 29cm

WiFi 10dB antenna with a female RP-SMA connector, it works with 2.4 GHz frequency. The length is 290 mm.
5.0 (2)
Index: AKS-10144
Index: AKS-10144
Shipping in 24 hours
Available
Regular price €5.00 Price €5.00

WiFi + Bluetooth BLE ESP-WROVER-E v1.3 - SMD 128 Mb

A chip from the ESP32 family based on the Espressif ESP32 chipset for communication in a WiFi network in the 2 . 4 GHz band and in the Bluetooth BLE / v4.2 standard....
5.0 (1)
Index: UCC-09548
Index: UCC-09548
Shipping in 24 hours
Available
Regular price €6.50 Price €6.50

Wired or wireless?

There is no simple answer to this question, because in reality you need both. Usually, what affects the type of a connection are three main factors: range, bandwidth and environmental conditions. Daily necessities such as your smartphone, tablet or laptop use the Wi-Fi wireless network. On the other hand, it is better to use a wired connection when it comes to desktops, servers, printers, media streams, connected TVs and TV set-top boxes. Both Wi-Fi and wired connections have advantages and disadvantages. The general rule is quite simple - for mobile devices it is better to use wireless connectivity for obvious reasons. Cable would restrict mobility for devices such as drones, robots or smartphones. There are of course exceptions, such as exploratory and underwater robots, where the environment imposes the use of a wired communication. A wired connection also works best if the devices operate at a small range or are generally installed in a fixed location. Then the use of a cable is a much cheaper and simpler solution. For this purpose, mainly serial links are used: RS232, RS485, RS422 or USB.

What is wired connection?

Wired connection is the transmission of data at a distance from point-to-point using a communication channel, such as copper cables, optical fibers or storage media. The data is sent as an electromagnetic signal, most commonly electrical voltage. Telephone networks, cable TV, Ethernet cable connection are the most important examples of wired connection. Analogue transmission is a method of transmitting voice, data, image, signal, or video information over a continuous signal, the amplitude, phase, or other methods. Historically, data has been trafficked non-electronically e.g. visually, acoustically and mechanically. The first applications of electromagnetic transmission were telegraph (1809) and telephone (1906), which operate on digital signals. Computers are wired to peripherals via parallel ports and serial ports such as RS-232 (1969), Firewire (1995) and USB (1996). In our Botland store’s offer you can find all modules supporting these standards. The products come from trusted suppliers and have the best value for money. Check it out yourself!

What is wireless transmission?

Wireless transmission is a data transmission method that use free space (air or vacuum) as a transmission medium. No cable in the form of an electrical conductor (wire) or optical fibre is required for transmission. Wireless transmission is carried out by directional or non-directional electromagnetic waves, with the range of the frequency band used varying from a few hertz (low frequency) to several hundred terahertz (visible light), depending on the application and technology used. Wireless transmission methods are mainly used in applications where wired transmission technologies are not applicable or too expensive, such as satellite communication or radio relay. Further applications can be found in consumer electronics as well as in the industrial sector. Well-known examples are Bluetooth, WLAN, ZigBee, NFC, Wibree, LoRA or WiMAX in the radio frequency range as well as IrDA and optical directional radio (FSO) in the infrared or optical frequency range.