Breadboard friendly PGA


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Mixtel90

Guru

Joined: 05/10/2019
Location: United Kingdom
Posts: 9128
Posted: 10:59am 28 Aug 2024      

Fixed it, I think.

New slimline version is 1" wide, pin centres are still 0.8".
Resistors increased to 0805 as this is the smallest size I can solder with any certainty!
Heartbeat LED and resistor added directly to GP25 so if you use it as an input you'll light the LED.
Power supply rearranged to make it more like the Pico but with a BAT+ input that feeds VSYS via a diode.
USR button added on GP29
RUN button
RUN & USR buttons have capacitors. USR has a series resistor too.
Given it a nice name 'cos it was a pig fitting it all in.

Sorry, no Debug port (if anyone uses it).

Can't find a use for GP36, 37 & 38. :)