ESP32 ESP-32 ESP-32S ESP 32 Development Board CP2102 WiFi Bluetooth Ultra-Low Power Consumption Dual Core (38 PIN) 4 pieces 7 X 4 Cm Gear Motor Robot Wheel & 4 pieces 200 RPM Gear Motor for Robotics Science Project and battery quality

and battery quality

DOA (Dead on Arrival) claims processed within 48 hours

1x MAX485 RS-485 TTL Module

Configure I2C bus speed to 400 kHz for standard operation or 1 MHz for faster refresh rates in time-critical applications

Range varies significantly with spreading factor selection: SF7 provides approximately 2-3 kilometers with faster data rates

ESP32 ESP-32 ESP-32S ESP 32 Development Board CP2102 WiFi Bluetooth Ultra-Low Power Consumption Dual Core (38 PIN) 4 pieces 7 X 4 Cm Gear Motor Robot Wheel & 4 pieces 200 RPM Gear Motor for Robotics Science Project and battery qualityESP32 ESP 32 ESP 32S ESP 32 Development Board CP2102 WiFi Bluetooth Ultra Low Power Consumption Dual Core (38 PIN)