DFRobot Bluetooth 4.2 audio receiver board, dual 5W amplifier, 15m range, WAV, 3.7-5V
Available · 1 piece · 1-3 days
Adafruit, Feather RP2040 RF95 LoRa, microcontroller, 900MHz, 264KB RAM, USB-C, LiPoly charging function
Available · 1 piece · 1-3 days
Seeed MDBT50Q-U1M BLE module, nRF52840, BT5 & 2.4GHz RF, 1MB Flash, 256KB RAM, integrated antenna
Available · 1 piece · 1-3 days
Elecrow ESP8266 ESP-01/ESP-01S Relay WiFi module, 10A/250VAC, 400m range, IoT Smart Home, 5-12V
Available · 15 piece · 1-3 days
Waveshare RTL8822CE Wireless NIC, Dual-Band WiFi 5, Bluetooth 5 BLE, NGFF M.2 AE Key, 867Mbps 5GHz
Available · 3 piece · 1-3 days
Adafruit Bluefruit LE UART Friend - Bluetooth Low Energy (BLE)
Available · 2 piece · 1-3 days
Elecrow LR1302 LoRaWAN Gateway Module SPI EU868, SX1302, 8 Kanäle, Mini PCIe, -139dBm, 26dBm, 3,3V
Available · 1 piece · 1-3 days
Seeed Wio Tracker L1, Meshtastic / LoRa 862-930 MHz, GPS L76K, OLED 1,3 Zoll, Grove-Port, 5V, 1A
Available · 16 piece · 1-3 days
Adafruit RFM96W LoRa Radio Transceiver Breakout, 433 MHz
Available · 5 piece · 1-3 days
Shelly Wall Display X2 + BLU H&T, 6,95" LCD, Android, silber
Available · 6 piece · 1-3 days
Elecrow ThinkNode M1 LoRa Meshtastic Transceiver, GPS, 1,54 Zoll E-Paper Display, 1200mAh Akku
Available · 94 piece · 1-3 days
Seeed SenseCAP Solar Node P1 für Meshtastic, LoRa 868-915 MHz, Bluetooth 5.0, Grove-Port, Solar 5W
Available · 18 piece · 1-3 days
Waveshare WIFI-CARD, MiniPCIe WLAN-Modul, 2× IPEX-4 Anschlüsse
Available · 48 piece · 1-3 days
Espressif ESP Thread BR-Zigbee Gateway, Matter Border Router, Bluetooth, Wifi, 2MB RAM, 4MB FLASH
Available · 4 piece · 1-3 days
DFRobot Bluetooth 5.0 audio receiver board, WAV, FLAC, MP3, 15m range, 3.7-5V
Available · 47 piece · 1-3 days
Seeed XIAO ESP32S3 Wio-SX1262 LoRa-Kit, Meshtastic, 240MHz, 8MB, Wi-Fi, BLE5, 868-930MHz, 2dBi,
Available · 3 piece · 1-3 days
Elecrow ThinkNode M6 Meshtastic Outdoor Solar Node, nRF52840, LoRa 868MHz, GPS, BLE 5.4, Akku, IP65
Available · 16 piece · 1-3 days
Elecrow LoRaWAN HAT, LR1302, 868-915MHz, GPS RTC integrated, 40Pin for Raspberry Pi, fan, 5V
Available · 28 piece · 1-3 days
Seeed Wio Tracker L1 Lite, Meshtastic / LoRa 862-930 MHz, GNSS, USB-C, ohne Display
Available · 23 piece · 1-3 days
SparkFun Artemis Module, Low Power Machine Learning BLE Cortex-M4F
Available · 10 piece · 1-3 days
Seeed SenseCAP BC01 Indoor Bluetooth Beacon für SenseCAP T1000 Tracker, 120 m Reichweite, 2400 mAh
Available · 20 piece · 1-3 days
Seeed Wio Tracker 1110 Entwicklungsboard für Meshtastic, LoRa 863928 MHz, Bluetooth 5.3, USB-C
Available · 9 piece · 1-3 days
Radxa Wireless Module A8 WiFi 6 + BT 5.2 Dual Mode, Realtek RTL8852BE, M.2 A+E Key
Available · 10 piece · 1-3 days
Network connectivity: for your microcontroller
RF, WiFi, and Bluetooth modules enable microcontrollers to communicate wirelessly with other devices. They represent an essential interface for IoT applications, remote controls, or sensor networks. These modules integrate wireless communication directly into embedded systems, ranging from simple sensor projects to complex mesh networks.
433 MHz RF modules, for example, can be used to control wireless power sockets. WiFi modules such as the ESP8266 allow control via the internet, while Bluetooth Low Energy (BLE) provides local connections to smartphones or other controllers – efficiently and with low power consumption.
Such modules are integrated directly onto the microcontroller board or connected via plug-in interfaces and can be controlled using digital interfaces such as UART, SPI, or I2C. This ensures a reliable connection to the network or to end devices at all times.
How are RF, WiFi, or Bluetooth modules used?
Connection is made via standard pins such as VCC, GND, and Data (e.g. TX/RX or GPIO). The power supply must match the requirements of the respective module – typically 3.3 V or 5 V.
Control is handled via serial interfaces (UART, SPI, I2C) and is usually programmed using Arduino, MicroPython, or C/C++. Corresponding libraries and development environments (e.g. Arduino IDE or PlatformIO) provide suitable examples.
Bluetooth modules often use AT commands for configuration, while WiFi modules such as the ESP8266 come with their own firmware and interfaces. For 433 MHz RF, direct data transmission with simple protocols is commonly used.
Overview of different product types
| Image | Module | Connection type | Range | Use case | Link |
|---|---|---|---|---|---|
|
433 MHz Transmitter & Receiver | RF (433 MHz) | up to 200 m | Wireless sockets, simple controls | View product |
|
ESP8266 ESP-01S Relay Module | WiFi | up to 400 m | Smart home, IoT, remote control | View product |
|
|
Waveshare RTL8822CE | WiFi 5 / Bluetooth 5.0 | depending on environment | Jetson boards, embedded systems | View product |
|
Seeed MDBT50Q-U1M | Bluetooth 5.0 / 2.4 GHz | up to 100 m (BLE) | Wearables, sensors, smart devices | View product |
What should be considered when selecting and installing?
Before purchasing, voltage requirements, interfaces, and compatibility should be checked. Not every module is plug-and-play – software adjustments are often required.
For a stable connection, the placement of the antenna is crucial. External antennas significantly increase range, especially for 433 MHz modules or WiFi solutions in the 5 GHz band.
Drivers and libraries must match the chosen platform (Arduino, Raspberry Pi, ESP32). For professional applications, the use of certified modules, such as those with CE or FCC markings, is recommended.
