u/TheJecksMan

Image 1 — The most nerve-racking Heltec V4 mod - switching to an external Wi-Fi antenna
Image 2 — The most nerve-racking Heltec V4 mod - switching to an external Wi-Fi antenna

The most nerve-racking Heltec V4 mod - switching to an external Wi-Fi antenna

My dad moved a tiny 0Ω resistor using nothing but an old soldering iron, some flux, and a wooden toothpick.

The way the Heltec V4 switches between the onboard and external Wi-Fi antennas is terrible. The resistor is so tiny that one wrong move and you could easily lose it forever.

To be honest, the work is so delicate that I wouldn't have dared to do it myself.

P.S. I still don't understand why Heltec chose this method for switching between the onboard and external antennas.

u/TheJecksMan — 13 hours ago