Hardware and Arduino Code for DIY WMRP-Solder Station

Features:

• 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

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

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• solder station arduino
• wmrp diy solder station
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