AS-289R2 Thermal Printer Shield

Introduced by NADA ELECTRONICS, AS-289R2 Thermal Printer Shield is the most advanced two-inch (58 mm) thermal printer in the industry.

You can directly connect the thermal printer to your Arduino, ARM mbed, Raspberry Pi, and Gadget Renesas.

Its print speed is 25 mm/sec and effective printing area is 48 mm. The printer is also suitable for printing various types of bar code.

For printing, it takes more power than what USB can provide. Please use the harness included and connect the printer to AC adapter for power supply (above 5 V 3 A). The alternative way to supply power is by using the jumper pin on the printer, and you can provide 5 V from the printer to Arduino.

To find out how to change the thermal paper roll paper, run test printing, and to use HEX dump mode, please refer to Nada's FAQ page.



  • 3.3 V or 5 V TTL level (switching at JP5)
  • 9600 or 38400 bps (switching at JP6)
  • Serial or Serial2
  • 8 Bit NonParity 1 Stop
  • supply voltage: 5 V±5%

Average Current: about 2 A

Resolution Ratio: 8 dots/mm (384 dots/line)

Effective printing area: 48 mm

Print speed: 25 mm/sec

Character types:

  • UTF-8
  • Alphanumeric, katakana: 160 types
  • JIS Kanji level1: 2965 types
  • JIS Kanji level2: 3388 types
  • non-Kanji: 524 types

Bar code: QR, JAN(13,8), 2of5(ITF), 2of7(NW7), 3of9(CODE39), UPC-A


  • 1 x Thermal Printer
  • 1 x Wire Harness (L = 1 m JST VHR-2N 1 = Red 2 = Black)
  • 1 x thermal paper (58 mm Width x 50 mm Diameter)
  • 1 x Thermal Paper Roll Holder


The Printer with Roll Paper Inserted



AS-289R2 Thermal Printer Shield
Name AS-289R2 Thermal Printer Shield
Code NADA-AS-289R2
SKU# 2553
Shipping EMS
Price: 161.00 USD