A9g gsm module
D1 MINI V2 – MINI NODEMCU 4M BYTES LUA WIFI INTERNET OF THINGS DEVELOPMENT BOARD
D1 MINI V2 - MINI NODEMCU 4M BYTES LUA WIFI INTERNET OF THINGS DEVELOPMENT BOARD, ESP WiFi Module, IOT AND WIRELESS
PN532 NFC RFID Read / Write Module V3 Kit
- Module Size: 42.7mm x 40.4mm x 4mm
- Easy to change mode: with a small SMD toggle Switch, it becomes very easy to change among IIC, SPI and HSU modes
- Longer distance: the reading distance becomes 5~7cm, compared with 4~6 cm of last version
- Built in PCB Antenna, with 5cm~7cm communication distance
- On-board level shifter, Standard 5V TTL for I2C and UART, 3.3V TTL SPI
- Work as RFID reader/writer
- Work as 1443-A card or a virtual card
SIM800L GPRS GSM MODULE MICRO SIM CORE BOARD QUAD-BAND PORT TTL FOR ARDUINO
This is Small SIM800L GPRS GSM Module Micro SIM Card Core Board Quad-band TTL Serial Port with the antenna, in this module two antennas have been included.
- TTL serial port for serial port, you can link directly to the micro-controller.
- Don’t need MAX232.
- Power module automatically boots, homing network.
- Onboard signal lights all the way.
- It flashes slowly when there is a signal, it flashes quickly when there is no signal.
