zCougar
2598
31
1
Let make this 5 V 2 A AC adapter a bit smarter…
There is not much space inside adapter and this is the only location where SMA connector can be installed.
RC circuit for ESP32 EN pin (10 kΩ, 1 µF) plus power supply decoupling capacitors (10 µF, 0.1 µF)
NDO533MA DC-DC buck converter for efficient 5 V to 3.3 V voltage change.
Circuit installed close to connector pins inside heatshrink tube
Everything tightly packed into the case. ESP32-WROOM-32U is separated from PSU electronics by plastic shield.
Everything in place
BigUglyBear
What do?!
ZeroThe2nd
Now build an army into functioning normal looking adapters and you’ve got a WiFi tracking network
zCougar
ESP32-WROOM-32D would be perfect for that with internal PCB antenna. Should be possible to track COVID-19 random IDs for instance.
NotMyDad
That... is a million dollar invention.