One primary concern on wireless transmission is the
power consumption [3]. The problem with other wireless
transceiver like Zigbee and Bluetooth is the power
consumption. As the range of the transmission becomes
longer, the module needs more power to transmit the data.
Another consideration also is the cost of the system. In this
paper, our group implements a low power 2.4 GHz wireless
transceiver for soil moisture monitoring and irrigation
scheduling in agricultural greenhouse. The wireless sensor
network module was developed in our lab was low cost
because our group used locally commercial components and
design our own sensor and coordinator node circuit board.