Shenzhen Shanhai Technology Ltd.
Shenzhen Shanhai Technology Ltd. Professional GSM GPRS modem and module GPS module manufacture. We supply high quality products, competitive price, and 5 star customer service
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Arduino relay shield 2 relay expansion board (with XBee shield function)
Arduino relay shield 2-channel relay expansion module supports two-way relay control, support for XBee / BTBee, nRFL2401, CC1101 radio module.
Arduino relay shield 2 relay expansion module to retain the motor and sensor control interface, a variety of sensors with electronic building blocks can easily build their own personalized product.