Review on ESP-01 Wireless Transceiver Board 3.3V - 📡 4Pcs ESP8266 Serial WiFi Module for Arduino (Updated) by Gage Lawson

They are all broken, maybe one, but it only lights up, I think it's broken too. I have the hardest time accepting this job, the only similar ones are 2 pcs. boxed keyestudio.com labeled "AI-Cloud-Inside" where they have "ESP-01" and the ones I've consistently worked for so far but I wanted to tinker with the good stuff. They work great on my USB to TTL converter plugged into the computer. As an aside I was only recently able to obtain an OTHER pair of keyestudio.com 2-pack boxes that arrived with these "ESP-01" in the box to work with the ESP8266. BASE. First I think it's a breadboard so I try to solder it and then I think it's an Arduino. I broke three of them, now I'm pretty sure it was the 3.7v battery circuit. RF is a horrible time when you've got a rescue kitty with an RF chip in your back for monsters to have their own ID - Make chips. Nothing Arduino will work around us all the time.