Hardware and Software for a DIY solder station with WMRP tips
Switch branches/tags
Nothing to show
Clone or download
Latest commit 3b9af76 Jan 28, 2017
Failed to load latest commit information.
FIRST_EEPROM_RUN Create README.md Sep 29, 2015
layout update Jan 28, 2017
pictures update Jan 28, 2017
stand update Jan 28, 2017
validation update Jan 28, 2017
.gitignore update Jan 28, 2017
LICENSE added Mar 15, 2015
README.md small changes Oct 11, 2015
WMRP.ino small changes Oct 9, 2015


Hardware and Arduino Code for DIY WMRP-Solder Station

Video: https://www.youtube.com/watch?v=le2HaKJ6B1A

If you have any questions, please feel free to contact me: flyglas (at) gmail (dot) com


  • low offset op amp for soldering tip temperature measurement with type D thermocouple
  • cold junction compensation using the PTC (KTY82-110) 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 16x2 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

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) or any other suitable connector
  • rotary encoder knob
  • display frame "EA027-2UKE"
  • aluminium enclosure "Proma 131020"


  • close jumper JP1 (activates pullup resistors for I2C wires)
  • close jumper JP3 (connection between power ground and analog ground)
  • leave jumper JP2 open (alternative for JP3)

Photos: outside


The PCB is a little bit dirty. The Isopropanol was empty and now everything is in the enclosure. inside


Stand for enclosure Proma 131020: inside



First picture of a replica:

Thank you Dennis for the nice conversation and the picture. inside