Onboard Module: ESP8266 wifi module; in AP mode it can connect with 5 Clients at the same time Operating Way: cellphone carried on wifi module; cellphone and wifi module carried on the same router, and use the APP to control relay Transmission Distance : 400m (max) Relay : 5V,10A/250V AC 10A/30V DC Baud Rate: 9600. Diode effusion protection; Short...

The A259 SIM800 GSM GPRS Module is an all-in-one wireless communication solution designed for GSM voice calling, SMS messaging, and GPRS data transmission. With a wide input voltage range from 6V to 24V, the module is ideal for integration into various embedded systems. It is compatible with 3.3V and 5V TTL logic levels, making it an excellent fit for...

Transmission Distance(m) :400 Relay Channel:2 Trigger Voltage (VDC): 5 Switching Voltage (VAC):250@10A Switching Voltage (VDC):30@10A Baud Rate:9600 Note: Relay might be different from the picture as per stock

Industrial-grade 4G Cat-1 TTL Serial DTU for stable and long-term IoT deployments Wide 5–36V DC input with built-in voltage monitoring via internal ADC Compact 25.8 × 25.8 mm core board, ideal for embedded and space-constrained designs Supports TCP, UDP, MQTT, HTTP, HTTPS and major cloud platforms SSL encrypted communication with OTA firmware upgrade...

Setup Instructions: 1. Do not upload any code initially—the board we’ve provided already comes with default firmware preloaded. 2. To test the ESP32-CAM, first connect the camera ribbon cable to the board. (Important) 3. Insert an SD Card. (Important) 4. Use an MB programmer board and power the setup with a high-quality USB cable. (Important) 5. Then, on...

The EC800M-CN is a compact and cost-effective LTE Cat-1 wireless communication module designed for a wide range of IoT and M2M applications. It delivers reliable cellular connectivity with balanced data rates, making it ideal for devices that require stable performance, long lifecycle support, and broad platform compatibility.

Chipset :ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor FLASH: QSPI flash 4MB / PSRAM 8MB SRAM:520 kB SRAM Button: Reset USB to TTL: CP2104 Modular interface: UART,SPI,SDIO,I2C,PWM,TV PWM,I2S,IRGPIO On-board clock:40MHz crystal oscillator Working voltage:2.7V-3.6V Working current: About 70mANote : AM-036 printed on board...

Model:SX1278ZTR4 SX1278 433mhz module spread spectrum low power serial port module LoRa wireless module Range: 3-5 KM (line of sight) Sensitivity: down to -148dBm Programmable bit rates: up to 300kbps RSSI dynamic range: 127dB Wireless frequency: 433MHz Working voltage: 1.8-3.7v Working temperature: -40-+80 ℃

Working Frequency: 868 MHz Distance: 8000m RF IC: SX1276/ RF96

USB communication, no need write code Support PC software automation Double antenna Support quad-band, universal worldwide Support 2G/3G/4G Automatically connect to the network Adaptive frequency

TTGO Meshtastic T-Beam V1.1 ESP32 915Mhz or 433Mhz (Ships Random) WiFi Bluetooth ESP32 GPS NEO-6M SMA 18650 Battery Holder  OLED (915Mhz OLED)

USB-TTL converter. Logic Level: 5V. Operating Supply Voltage: 5V. Digital I/O Pins: 14. Analog I/O Pins: 6. The board color, shape, and parts may differ from the pictures due to rotating stock.

Product: GSM Antenna Color: Black SMA male straight 5cm 900-1800MHz radio antenna. Frequency: 900MHz – 1800MHz Maximum Power: 50W Length: 5cm/1.97 inch

Communication distance: 15KM Sensitivity: down to -148dBm Programmable bit rates: up to 300kbps RSSI dynamic range: 127dB Wireless frequency: 433MHz Working voltage: 1.8-3.7v Working temperature: -40-+80 ℃The range depends on your antenna. If you need a longer range, you need to use a powerful antenna. (Antenna is not included)

Supply Voltage: 5V USB / 3.7V lithium battery Output Port: 3-wire audio interface/DIY pad Output Type: Analog signal Bluetooth name: VHM-314-V3.0 Bluetooth version: 5.0 Bluetooth passcode: no password Sound source: Bluetooth. USB-PC input(after the back pad is connected, the computer can be connected as a sound card though Micro) Operation method:...

Based on ESP32 240MHz Xtensa dual-core 32-bit microprocessor Operating Voltage: 2.7V – 4.2V Working Current: 60mA Battery Charging Current: 500mA

11 digital input/output pins Interrupt/PWM/I2C/one-wire 1 analog input(3.2V max input) 16M bytes(128M bit) Flash External antenna connector Built-in ceramic antenna New CP2104 USB-TO-UART IC

IPEX To SMA Female External Antenna Adapter SMA Male Antenna for 2.4G WIFI Module Only Antenna and Adapter RF Cable  ESP32 Cam is not included

Single supply voltage 3.4V – 4.5V HW-353A SIM900A Module Development Board GSM GPRS The keypad and SPI display interface will give you the flexibility to develop customized applications. Serial port and Debug port can help you easily develop your applications. One audio channel includes a microphone input and a speaker output. Programmable General Purpose...

ESP32-S2-DevKitM-1 Equipped with ESP32-S2-MINI-1 module Easy interfacing Integrates ESP32-S2FH4 chip.  PCB antenna  4 MB SPI flash.This is an authentic Espressif board.

Remote control distance: more than 8 meters Crystal: the oscillation frequency of 455 IR carrier frequency: 38KHz Output form: Digital Power Supply: CR2032 Battery Pointing Angle: up to 60º Button: free height is less than 3mm, the force 200-350g, the life of more than 200 000 click

433Mhz Wireless Receiver Learning Code EV1527 Decoding Module 4-channel output with a learning button Compatible with Arduino/ARM/MCU Ideal for wireless power switch sockets, remote controls, LED lighting, and electric doors Wide range of applications in home automation, security systems, and remote control devices

433 Mhz Remote Control and Wireless Receiver Module Learning Code 1527 Decoding 4 Channel Output with Learning Button DIY kit for Arduino/ARM/MCU Suitable for wireless power switches, remote control sockets, LED lights, electric doors, and more.

Very Few External Components Excellent Receiver Sensitivity and Robustness to Interference. Programmable Output Power Up to 4.5 dBm. High-Quality Construction

Operating Voltage: DC 2V- 9V  Operating frequency: 85MHZ - 115MHZ Output Impedance: 50 ohms

¼ wave rubber duck antenna 860-960MHz communication center frequency of 915MHz RP-SMA connector Gain is 2dBi with an overall length of 110mm