आकार: बढ़ते छेद के बिना:40mm x 30mm Include mounting holes:50mm x 30mm Maximum temperature: 85°C In board 3 LEDs can be controlled 1buzzer 4 GPIO output TTL high and low TF card(micro SD)record data in FAT filesystem. 1कुंजी,cand read status Notice: इस सामग्री के लिए जावास्क्रिप्ट आवश्यक है.