尺寸: 如果沒有安裝孔：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. 1鍵，C和讀取狀態 注意： 此內容需要 JavaScript。