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Pro Mini) and Raspberry Pi for serial communication
High Current Capability: Delivers up to 5A output
```html CH340G USB to Serial Converter
Module Model 1203B PWM DC Motor Speed Controller Input Voltage Range DC 6V - 28V Maximum Output Current 3A (continuous) PWM Frequency ~20 kHz (inaudible range) Duty Cycle Range 0% - 100% (full speed range) Speed Adjustment Onboard potentiometer knob (stepless) Control Method Pulse Width Modulation (PWM) Efficiency High (minimal heat generation) Board Dimensions Approx
IoT sensor networks and smart home prototypes
NanoPi R4S NRF51822 Pro Mini) and Raspberry PiNanoPi R4S The NanoPi R4S is a compact ARM based single board computer featuring dual Gigabit Ethernet ports and a RK3399 processor, designed specifically for network intensive applications and edge computing deployments. Network engineers, IoT developers, and systems administrators use this device professionally to build custom routers, network appliances, and distributed edge computing nodes that require high throughput and low power consumption. It