Arduino Fm Transmitter

Working voltage: 2V-5V (mobile power can be used, but with regulated power supply, mobile phone charger may have AC noise, if the voltage is too high, it will burn the launch tube)
Working current: 30-80mA (measured input working current: 4.8V-87mA, 3.6V-63mA, 2.4V-36mA, test 80cm wire for the antenna, respectively, using four, three, two BPI2100mah nickel-metal hydride rechargeable battery test)
Transmitting frequency: 80-110MHz (complete coverage of home FM radio frequency)
Transmitting power: 150mw (C models), 50 meters - 800 meters (depending on the antenna efficiency determines the distance)
On-board microphone with external audio input (mono)
7,99 € SU AMAZON

Single transistor direct transmission, need to be programmed waveform modulation
LED with transmitting signal to facilitate observation and debugging
Applicable to infrared communication and remote control
It is suitable for infrared communication, infrared remote control, apply to a variety of platforms including Arduino/51/AVR/ARM
Voltage: 5V , Wavelength: 940 nm
7,50 € SU AMAZON