The KS015 Dual Current Sensor is a two-channel power monitoring and load-switching module. Each channel independently measures current, voltage, and power — and can switch its load on or off under software control. Built around an STM32F103C8 microcontroller with the STM32duino bootloader, it programs directly from the Arduino IDE. A USB-C port provides both power and a virtual COM port for live data logging and control from a PC.

• Dual-channel current, voltage, and power monitoring via 2× TI INA260
• Two independent P-channel MOSFET load switches with transient protection
• Wide input voltage range: up to 27 V DC per channel
• Load current up to 7 A per channel
• USB-C for power and virtual COM port (enumerates with default firmware)
• Arduino-compatible via STM32duino bootloader — no proprietary toolchain
• SWD debug port (J5) for bare-metal development
• Stand-alone operation — works as a load controller with no USB/PC connection
• 4 status LEDs: power (white), heartbeat (yellow), load 1 & 2 (red)

📝 Blog post  |  📄 Datasheet  |  💻 GitHub (firmware)  |  💻 GitHub (bootloader)