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AS01-ML01S is a 1mW industrial wireless data transceiver with high speed and high stability, operates at ISM band 2.4GHz~2.525GHz (default 2.4GHz). The module uses original nRF24L01P from Nordic. It comes with high-performance PCB antenna and accurate impedance matching. It features enough power, good spectral properties, small harmonic wave, small cross talk and super small volume. Some of the devices meet military grade standard. When the transmitting power is 0dBm, the transmitting current is tested as 150mA. The module weight is about 0.5g. The size is 12 * 19mm, coming with PCB antenna and the module weight is about 0.5g. Transmission distance is up to 0.12km. 3 air speeds are available（250Kbps、1Mbps、2Mbps）The receiving sensitivity is -82dBm when the data speed is 2Mbps, and the receiving sensitivity is -85dBm when the data speed is 1Mbps. The transmitting length and the receiving length is 1-32 bytes of each data packet. When the transmitting power is 0dBm, the transmitting current is tested as 150mA. The max communication range is 120m, which is tested at the data speed of 250Kbps. The nRF24L01P technical manual requires that the high-level time of the CE pin is greater than 10us to start data transmission. However, in order to make the same code compatible with our AS01 series modules with PA and LNA, it is recommended to change CE to high level after setting the SPI operation. After the completion of the transmission, continue to maintain a high level of 1ms, and then lower the CE.