Better price, Better quality, 100% compatible with Arduino.
Difference from the old version: Add one ultrasonic sensor module, replace the flame sensor, ir sensor and keypad module by flame sensor module, ir sensor module, membrane keyboard
Upgrade RFID start kit with free tutorial in CD and more than 180pcs components
Including RFID-RC522 Module (RFID reader) + RFID Proximity ID Round Tag + RFID Proximity ID Card Tag
LCD1602 module with IIC,transfer 16 connectors to only 4 connectors, no need to solder by yourself