FM stereo radio kit GS1299 digital FM electronic production DIY welding practice TJ-56-556

FM Stereo Radio Welding Kit uses a GS1299 digital radio chip, plus peripheral circuits, to receive 76MHZ~108MHz frequency band broadcasts. Programs can be switched by key adjustment. The sound quality is better than traditional FM radio. You can plug in headphones or play through speakers. In places with better signals, such as cities, you can search for about 15 radio programs. Product parameters: Product name: GS1299 digital radio kit Product model: TJ-56-556 Input voltage: USB-DC5V (3.7V polymer lithium battery) Battery capacity: 250mAh Board size: 50x38mm Frequency search range: 76MHz~108MHz, button adjustment Headphone output: low volume, adjustable volume; the kit does not come with headphones; you need to bring your own Speaker output: with amplifier speaker output Product features: 1. Small appearance, novel shape; 2. High sensitivity, low noise, anti-interference, Strong interference capability; 3. Support global frequency band (76-108MHZ); 4. Built-in rechargeable battery and charging circuit, can be charged with a mobile phone charger. Instructions for use: 1. Press V0L and V0L- to adjust the volume, SEEK and SEE- to adjust the program; 2. Connect the USB cable for the USB power supply, and do not connect the USB cable for the lithium battery power supply; 3. The yellow light is on when the battery is charging, and the green light is on when the battery is fully charged; 4. After power on, you need to press the S key to search for the program before you can hear the sound: Product accessories: Circuit schematic diagram: