Waveshare 24019 Flexible And Expandable Off-Road Tracked UGV, Multiple Hosts Support, With External Rails and ESP32 Slave Computer 1. Dimensions: 231x197x151mm 2. Suspension system: 4×2 (independent) 3. Chassis height: 26mm 4. Guide rail center distance: 170mm 5. Track width: 44mm 6. Running speed: 0.25~1ms 7. Track horizontal ground length (no load): 115mm 8. Suspension material: 1.5mm (thickness) stainless steel 9. Track climbing ground length (with large load): 170 mm 10. Body material: 2 mm (thickness) 5052 aluminum alloy 11. Weight: 1.9 kg 12. Vertical obstacle clearance capability: 40mm 13. Driving Payload: 6.2kg 14. Climbing ability: 36 degrees 15. Battery holder: 18650 lithium battery x 3 (not included) 16. Turning radius (min): 0 meters (rotating in place) 17. Charging time: 1.5 hours 18. Battery life: 1 hour (full power continuous output) 19. Motor power: 5.2W×2 20. Remote control function: WIFI, APSTA 21. Motor encoder: basic pulse 11PPR 22. Communication interface: UARTserial bus servo interfaceIIC 23. The crawler-type mobile robot chassis has super off-road crossing ability and anti-seismic performance, and all codes are open source for secondary development 24. Support multiple host computers, can communicate with ESP32 slaves through the serial port 25. Motors with encoders can get speed feedback for closed-loop speed control 26. Built-in 3S UPS power supply module, supports 3 18650 lithium batteries (serial connection, not included), provides uninterrupted power supply for the robot, and supports charging and power output at the same time 27. Built-in multifunctional robot driver board, based on ESP32, onboard WIFI and Bluetooth, used to drive serial bus servos, output PWM signals, expand TF card slots, etc. 28. Multiple independent suspension systems are used to greatly reduce the impact of complex terrain and easily meet the needs of heavy loads, shock absorption, and off-road 29. And it comes with 2x 1020 European standard profile guide rails, providing more possibilities for secondary