DIY FM montaje de Radio Digital Kit electrónico PCB proyecto de soldadura práctica frecuencia de soldadura 87MHZ-108MHZ TEA5767 IC 5W 8Ω

Circuit board size: 7.7cm x 6.1cm;

Casing size: 8.4cm*6.8cm*5.2cm (old model) 8.4cm*7.6cm*5.5cm (new model)

Working voltage: DC 5V (positive inside DC socket and negative outside DC socket, do not connect in reverse)

FM range: 87MHZ-108MHZ;

FM button: press the button once for 0.1MHZ, long press the FM button for continuous addition and subtraction;

Function: digital frequency function, power-off memory function, power-saving function;

Power-off memory function: after turning off the power, turn on the power again, and the radio station before the power off will be played.

Power-saving function: 1. Each time the power is turned on or the FM button is pressed, the digital tube displays the frequency for 5 seconds, and the digital tube display will be automatically turned off after 5 seconds

2. Reasons: (1) Power saving (2) The digital tube will interfere with the sound when it is displayed, and turning off the digital tube will reduce the interference.