NRF24L01 is a monolithic transceiver chip working in the ISM frequency band of 2.4-2.5GHz. | The wireless transceiver includes: frequency generator enhanced SchockBurstTM mode controller power amplifier crystal amplifier modulator demodulator output power channel selection and protocol setting can be set through SPI interface. | The current consumption is 9.0mA when the transmission power is 6dBm in the transmission mode, 12.3mA in the acceptance mode and lower in the standby mode. | The ISM frequency band is open, which has a large transmission power of 0dBm and is free of license. Support six channels of data reception.

4 pcs

WIDE SUPPLY RANGE: 2.0V to 5.5V bits of resolution offered in an ultra-small, leadless | INTERNAL PGA up to 860 samples per second (SPS). An onboard PGA is available on the ADS1114 and ADS1115 that | Single-Shot Mode: Auto Shut Down; Programmable data rate: 8sps-860sps

This item make the sound around the microphone into the FM radio, and transmit out to achieve pickup and wireless radio FM transmitter | he launch frequency is adjustable, the core board green components is the adjustable capacitor, change the adjustable capacitor can change Launch frequency, adjustable range covering 88-108MHZ GB FM-band | You can use the radio and the phone (the phone with the headset line to do the antenna sensitivity is poor, is not recommended as a receiver) as a receiver! | It is widely used in voice pickup transmission, audio MIC, the elderly and children sleep monitoring, etc. need to pick up the sound of the occasion! | The back of the core panel is labeled +,- and ANT,representing the power positive,negative,and antenna ends.The antenna generally soldered a 0.7 meter long short wire on will be OK,which is very easy!