Weld 1 Wire to the Olimex Card

Equipment Needed

• A20 Olimex card
• 15 cm of red wire which has been tinned at both ends
• Soldering iron
• Tin

Assembly

1. Locate the GPIO 3 (see the yellow circle in the photo). Then locate prong # 33, circled in red. It is four prongs up from the bottom left-hand side of the GPIO 3.
   
2. Tin prong # 33 to ensure easy welding of the wire.
   
3. Weld the red wire onto prong # 33 of the GPIO-3 connector on the Olimex card.
   

   Do not heat the prongs for too long during welding. Make sure the tin does not touch the adjacent prongs.