Serial Control MP3/Sound PlayerJQ6500 Sound ModulePower Supply: 3.2-5VDC, Nominal 4.2VDC16 Mbit on board memory.Support all the bit rate 11172-3 and ISO13813-3 layer3 audio decoding
Sampling rate support (KHZ) : 8/11.025/12/16/22.05/24/32/44.1/48- Volume and equalizer function- UART and/or button c..
3.7V 2200mAh Li-ion Rechargeable BatterySize: 18650Note: This type of battery has no buil-in protection circuit (BMS), hence should be used with caution.Honest Disclosure: We tested samples of this battery and found the actual ampacity to be just around 850mA-hour...
8 Channel relay board- Optocoupler isolated drivers- 5V coil voltage- 10A at 220VAC/32VDC SPDT Contact- LED Indicators for each channelCompatible with logic driving 5V and 3V (e.g. Arduino, Raspberry Pi)..