assembly notes

assembly notes

needle nose plyers
sharp sidecutters

For general electronic components, set your soldering iron tip between 315°C to 370°C (600°F to 700°F) for leaded solder, and 350°C to 400°C (662°F to 752°F) for lead-free solder. Keep contact fast (1–2 seconds) to avoid heat damage.

Suggest same size resistors, all quarter watt or eight watt.  resistors lead spacing os 0.4 inches. just a gentle bend on 1/4w ? resistors

Use a lead bender9-pin joystck connector- important to not let pins get bent.  Proper storage is essential or time is wasted.

 https://www.microchip.com/en-us/product/mcp23009 8-Bit I2C I/O Expander with Open-Drain Output
18-lead PDIP.  If you have a chip inserter - it helpsso you don't have to bend the leads by  hand.

 would be nice to have parts feeder for smd caps

maybe resistoirs too

need good tweezers

i think a small, thin flat tip solder iron is best for the capacitors. I worry the second side pad is not heating and so;dering.  possibly sair silder.  microscope ?

 is there an in-circuit test for the capacitors especially if they are installed first?