As the application range of garden tools has been gradually extended from professional fields such as industry to people’s livelihood, miniaturization, intelligence and cordless lithium battery will be important trends in the development of garden tool industry, which requires a garden tool control solution that is more compact, more energy-saving, more efficient, safer and more economical.

The UM3213E/F series of Unicmicro is a low-power 32-bit MCU developed based on ARM Cortex-M0+. Clocked at 32 MHz, with 64 KB Flash and a wide voltage range of 1.8–5.5 V, UM3213A features high integration, high interference immunity, high reliability, and rich peripherals including 3×PWM complementary outputs, 1×operational amplifier, 3×comparators, 8-channel 12-bit 1Msps ADC, multiplex UART, SPI and I2C, etc. This series is applicable to a variety of scenarios such as main control, exception protection and control algorithm implementation of garden tools, meeting customer’s needs for solution implementation.

Solution features:

Low-speed and heavy-load startup

Built-in 3-channel comparator for fast and direct access to counter potential signal

Low-power consumption and safety circuit design

Hardware overcurrent protection

Protection against under/over-voltage, under/over-temperature, under/over-current, over-speed, current limiting, break stop, etc.

Emergency stop mechanism for protection under abnormal conditions

Integrated motor control unit

Solution benefits:

Highly capable of running with load

Efficient and reliable system operation

Short development cycle and long service life

Easy to implement, low hardware cost

Applicable to all kinds of motor; mature control algorithm

Anti-copy board to prevent programs in eFlash from being pirated