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

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

DOA (Dead on Arrival) claims processed within 48 hours

making it suitable for circuits operating at low to moderate current levels

1x MAX485 RS-485 TTL Module

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)