Hardware and Software for a DIY solder station with WMRP tips
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FIRST_EEPROM_RUN Create README.md Sep 29, 2015
layout update Jan 28, 2017
pictures update Jan 28, 2017
stand update Jan 28, 2017
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LICENSE added Mar 15, 2015
README.md small changes Oct 11, 2015
WMRP.ino small changes Oct 9, 2015

README.md

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

Features:

  • 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"

Info:

  • 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

outside

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

inside

Stand for enclosure Proma 131020: inside

inside

inside

First picture of a replica:

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