Hardware and Arduino Code for DIY WMRP-Solder Station


  • low offset op amp for soldering tip temperature measurement with type c thermocouple
  • cold junction compensation using the PTC (KTY82-210) included in the WMRP soldering pencil
  • input voltage measurement (for use with 3 cell lipo battery)
  • soldering pencil current measurement
  • recognizing if the soldering pencil rests in the stand (–> standby)
  • 3 buttons for save and recall temperature values
  • rotary encoder to set soldering temperature
  • illuminated 16×2 character LCD module
  • USB for debugging and firmware update
  • clean and small enclosure
  • 4mm safety socket for +12V power input and a protective earth socket for connection to ESD protection

Hardware and Arduino Code for DIY WMRP-Solder Station

The BOM in the layout folder includes only the parts on the PCB(s).

Parts (not on PCB):

  • lcd display from ebay “Blue I2C 1602”
  • modified connector “Amphenol T 3437 000” (http://www.mikrocontroller.net/topic/143288#1500819)
  • 4mm safety sockets (red, black, green/yellow)
  • rotary encoder knob
  • display frame “EA027-2UKE”
  • aluminium enclosure “Proma 131020”


For more detail: Hardware and Arduino Code for DIY WMRP-Solder Station

This Post / Project can also be found using search terms:

  • solder station arduino
  • wmrp diy solder station
  • diy soldering station
  • diy wmrp
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