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Robotic Lawn Mower

Owning a huge yard creates expensive landscaping bills for homeowners or hours invested landscaping themselves. A robotic lawn mower saves time and money as well as regular yard maintenance. Renesas offers all the major parts needed for a robotic lawn mower. 

System Benefits

  • Single IC for BLDC motor control with integrated analog front-end (AFE) 
  • Feature-rich battery management system (BMS) for an up to 8 cells Li-ion battery with reliable safety features for cell balancing and protection 
  • Efficient battery charging in CV/CC profile 
  • Low Power consumption for longer battery life 
  • Rain detection using weatherproof humidity sensor and capacitive touch sensing unit (CTSU) for returning to a docking station for safe operation 
  • Collision detection using Time of Flight (ToF) sensors and lift/tilt detection using 6-axis IMU for stopping the blades, ensuring enhanced safety 
  • Docking station with integrated electronic fencing using perimeter wire and charging status monitoring 
  • Remote control and theft protection alarm using wireless/GPS connectivity 

Target Applications

  • Robotic lawn mowers 
  • Autonomous mobile solutions for yard, home and warehouse 

Robotic Lawn Mower

Renesas Dialog Diagram Legend

 

Battery Pack Monitor      
ISL94202 Standalone 3 to 8-Cell Li-ion Battery Pack Monitor Datasheet Buy/Sample
Buck-Boost Controller      
ISL81401A 40V Unidirectional 4-Switch Synchronous Buck-Boost Controller Datasheet Buy/Sample

 

Buck Regulator      
ISL85410 Wide VIN 1A Synchronous Buck Regulator Datasheet Buy/Sample

 

Humidity Sensor      
HS3101 Relative Humidity and Temperature Sensor with Membrane Datasheet Buy/Sample

 

LDO      
ISL80410 40V, Low Quiescent Current, 150mA Linear Regulator Datasheet Buy/Sample

 

Memory      
AT45DQ161 16-Mbit SPI Flash Memory with Dual-I/O and Quad-I/O Support, 2.3V Minimum Datasheet Buy/Sample

 

Microcontroller      
RA4M1 32-Bit MCU with 48MHz Arm® Cortex®-M4 and LCD Controller and Capacitive Touch for HMI Datasheet Buy/Sample
RL78/G12 Compact, Low Power Microcontrollers for General Purpose Applications, Ideal for Sub-MCUs Datasheet Buy/Sample

 

Motor Control      
RAJ306001 30V Motor Control IC with Built-In 16-bit MCU (RL78/G1F) Datasheet Buy/Sample

 

Operational Amplifier (Op Amp)      
ISL28214 Dual General Purpose Micropower, RRIO Operational Amplifier Datasheet Buy/Sample
ISL28191 Single Supply Ultra-Low Noise, Low Distortion Rail-to-Rail Output, Op Amp Datasheet Buy/Sample

 

Proximity Sensor      
ISL29501 Time of Flight (ToF) Signal Processing IC Datasheet Buy/Sample