Operating Voltage: 5V
Input Voltage: Recommended 7-12V, limited to 6-20V
Digital I/O Pins: 54 (15 of which provide PWM output)
Analog Input Pins: 16
DC current per I/O pin: 40mA
DC current on 3.3V pins: 50mA
Flash memory: 256KB (8KB reserved for bootloader)
SRAM: 8KB
EEPROM: 4KB
Clock speed: 16MHz
Dimensions: 101.2mm × 53.3mm
Weight: 36.6g
Shipping matters：
China Post Small Parcel： 15-20 days
EMS：10-15 days
FedEx：5-7 days
DHL Express：5-7 days
UPS：4-7 day
Receive order preparation time:
Ships 1-3 days after receipt of order
Tax issues:
1. As each country charges different taxes on parcels, you need to know whether the country of your own address needs to charge taxes before placing an order.
2. If you need to reduce the invoice amount, you can contact customer service or e-mail contact.
3.The package arrives safely in the buyer’s country and the merchant is not responsible if the package is (returned) because the buyer has not paid the tax.
Other issues:
If you need to find other electronic products or have any questions you can contact customer service or email. (We will get back to you as soon as possible)
