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SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board Antenna
In Stock
- Power: 5V or 3.5–4.5V
- Supports 2G, 3G, 4G SIM cards
- TTL serial port (3.3V/5V)
- SMA antenna interface
- Flip SIM slot
- ESD protection
- AT command support
- Ideal for IoT & GPS tracking
AC90-250V ESP8266, Wireless WIFI Relay, Module 1 Channel ESP-, 12F Wifi Development, Board AC/DC 5V/7-28V/5-, 80V Power Supply
In Stock
- Onboard Mature and stable ESP-12F WiFi module, high capacity 4M Byte Flash
- The I/O port of the WiFi module and the UART program download port are all extracted, convenient secondary development
- Onboard AC-DC switch power module, supply power way support AC90-250V/DC7-12V/USB5V
- Onboard Wifi module RST reset button
Purple Esp32 38pin Expansion Board
In Stock
ESP32 38PIN expansion board
In Stock
Ai Thinker ESP-01S ESP8266 WiFi Module
In Stock
- 1MB (8Mbit) Flash size.
- Very competitive price
- AP, STA, AP+STA modes available.
- Very simple AT commands, easy to use.
- Internal LWIP interface.
RC522 RFID 13.56MHZ Reader Writer Module
In Stock
- Voltage: DC 3.3V (Do not use 5V supply)
- Operating Current :13-26mA
- Idle Current :10-13mA
- Operating Frequency: 13.56MHz
- Highly integrated analog circuitry to demodulate and decode responses
- Supports ISO/IEC 14443 A/MIFARE
Seeed Studio XIAO ESP32C6
In Stock
- Processor: ESP32-C6 SoC with two 32-bit RISC-V processors (High-Performance and Low-Power).
- Memory: 512KB SRAM and 4MB Flash on-chip.
- 2.4GHz Wi-Fi 6 (802.11ax)
- Bluetooth 5.0 (LE)
- Zigbee
ESP8266 NodeMCU CP2102 WiFi Board Development Board
In Stock
- Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
- Arduino-like hardware IO
- Integrated TR switch, balun, LNA, power amplifier and matching network
- Integrated PLL, regulators, DCXO and power management units
- Onboard USB to serial chip to easily program and upload codes from the Arduino IDE
- Embeds logic level converter circuits
NEO-M8N GPS Module with Ceramic Active Antenna
In Stock
ESP WROOM 32 Wi-Fi Bluetooth Development Board -30 pin
In Stock
- Supply Voltage: 2.2 V ~ 3.6 V
- GPIO Pins: 38
- Current: 80 mA
- Data Rate: 54 Mbps.
- Flash Memory: 32Mbits
- Frequency: 2.4 GHz.
LM35 Temperature Sensors
In Stock
ACS712 5A Range Current Sensor Module
In Stock
- Low-noise analog signal path.
- Device bandwidth is set via the new FILTER pin.
- 5 µs output rise time in response to step input current.
- Small footprint, low-profile SOIC8 package.
- 2.1 kV RMS minimum isolation voltage from pins 1-4 to pins 5-8.
DS18B20 Waterproof Digital Temperature Sensor
In Stock
30A range Current Sensor Module ACS712
In Stock
- Low-noise analog signal path
- Device bandwidth is set via the new FILTER pin
- 5 µs output rise time in response to step input current
- Small footprint, low-profile SOIC8 package
- 2.1 kVRMS minimum isolation voltage from pins 1-4 to pins 5-8
Heart Beat Pulse Sensor
In Stock
MQ2 Smoke LPG Butane Gas Sensor Module
In Stock
- Model: MQ-6
- Operating Voltage: 5V DC
- Detecting Range:200-10000 ppm
- Relative Humidity:<95% RH

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