DFRobot Embedded Thermal Printer TTL Serial

This is a compact thermal printer from DFRobot. The advantage of the thermal printer is that it does not need to be refilled with toner or ink, but can continuously print. The printer is controlled via a Mini-USB port or a RS232/TTL Serial interface, and it is powered via a PH 2.0 connection with 5V-9V. The printer comes with a 58mm paper roll and is perfect for printing receipts, QR codes or measurement data. Coupled with an Arduino or Raspberry Pi, a Gravity Expansion Board and sensors, you can build compact, integrated systems, such as measurement systems that periodically print their data or a DIY receipt printer. 

Info: The higher the voltage from 5V-9V, the clearer the print. The normal operating current is about 0.8A-1.5A. If the printer is used in particularly cold environments, the printer can draw up to 2A. The USB interface supports Windows, but a driver must be installed first. You can find more information in the documentation. 


  • Thermal printer 
  • Mini-USB interface, Windows compatible 
  • RS232/TTL Serial interface for Arduino, Raspberry Pi 
  • Lifetime of 50km print length 
  • Operating voltage of 5V-9V 


Technical Details: 

  • Manufacturer: DFRobot 
  • Manufacturer SKU: DFR0503-EN 
  • Operating voltage: 5V-9V DC (9V Recommended) 
  • Working current: 0.8A - 1.5A (up to 2A in cold conditions) 
  • Interface: Mini.USB, TTL 
  • Print color: Monochrome 
  • Resolution: 203DPI 
  • Paper roll: 57mm wide, 30mm diameter 
  • Effective print width: 48mm 
  • Lifespan: 50km 
  • Print speed: 60mm/s 
  • Operating temperature: -20°C - 50°C  
  • Print character: 1224 standard ASCII, 2424 international first and second level font 
  • Print command: ESC/POS compatible 
  • Dimensions with seat: 82 x 58 x 44mm 
  • Dimensions without seat: 77 x 53 x 42mm 
  • Weight: 134g 

Scope of delivery:  

  • 1x DFRobot Embedded Thermal Printer 
  • 1x Mini-USB to USB-A cable 120cm 
  • 1x PH2.0 to PH2.0 Power cable 30cm 
  • 1x 5pin TTL cable 30cm 
  • 1x 5pin to DuPont cable 30cm 
  • 2x Positioning bracket 
  • 2x Positioning screw 

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DFRobot Embedded Thermal Printer TTL Serial

  • Brand: DFRobot
  • Product Code: 422356
  • Availability: In Stock
  • CHF49.90

  • Ex Tax: CHF46.16

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Tags: DFRobot, Thermo, thermal, Printer, Cash receipt, QR code, monochrome, Label, Invoice, TTL, Serial, serial, RS232, USB