深圳市宏维微电子有限公司
Shenzhen Hongweiwei electronics Co., Ltd.
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Product name: Bluetooth audio power amplifier moduleProduct model: HW-406Working voltage: DC3.7~5VOutput power: 5W*2Output load: 4Ω5W speaker
Product name: 5A DC step-down CNC moduleInput voltage: DC 6.5-36V (the input voltage is lower than 6.5V, the current accuracy is not accurate, and the LCD display is abnormal when it is lower than 5.5V)Output voltage: DC 1.2-32VConversion efficiency: about 94%Working current: about 30mA
Power supply: 2.1 interface DC 8~25V power supplyChannel: 2*50w dual channel (stereo)Audio source input: Bluetooth connection stereo input, using CSR8633 Bluetooth chip, Bluetooth V4.0Output impedance: 8 ohms (can drive 4, 6, 8, 16 ohm impedance speakers)Output power: adding the front-end NE5532 output power is sufficientDIP switch: It is more convenient to directly adjust the gain of the power amplifier of the subsequent stage, and it is better to push the loudspeaker with larger damping
1.ESP8266 ESP12F WIFI模组2.物联网开发板3.机智云APP(客户端)控制4.RGB LED5.光敏电阻6.CH340串口芯片
主控芯片:L298N工作模式:H桥驱动(双路)逻辑电压:5V逻辑电流:0~36mA驱动电压:5~35V(建议最大使用不超过24V),如需要板内取电,则供电范围7V~35V(建议最大使用不超过24V)驱动电流:2A(Max单桥)
供电方式:1.锂电池18650 3.7V  2.Micro USB 接口供电:5V最大工作电流:2A工作温度:0~85℃
1. 输入电压:DC3.2V-35V;2. 输出电压:DC1.25V-30V;3. 输出电流:最大3A;4. 转换效率:最大92%;  5.带红色电源指示灯
1.12个数字输入/输出端口D2-D13。2.8个模拟输入端口A0-A7。3. 1对TTL电平串口收发端口RX/TX。4. 6个PWM端口,D3, D5, D6, D9, D10, D11。5. 采用Atmel Atmega328P-AU单片机。6. 支持USB下载及供电。7. 支持外接3.3V-12V直流电源供电。
Product model: HW-818Charging Voltage: DC 16.8-17.8VContinuous discharge current: maximum 40A (if heat dissipation environment is not good, please reduce the use of load current)Continuous charging current: maximum 20AProduct size: 45*60*4mmApplicable selection: suitable for lithium batteries with nominal voltage of 3.7V and charge of 4.2V(Including 18650, 26650, polymer lithium batteries) with electric drill below 170W
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