I tried soldering some wires and a 0.68 uF capacitor to EN and GND, but WiFi wasn't stable. As a test, I used some alligator clips to add a 220uF capacitor in parallel and WiFi was stable, but then I did notice the slow start (several seconds). So I settled on soldering some wires and a 22 uF, 16 V ...

Thanks for the reply. Sorry for my late reply (I never received an email notification from the forum). Since my last reply, I've been using the board with the temporary 220uF capacitor and the board has been working fine. I haven't noticed a slow startup of the ESP32 with the 220uF capacitor, but I'...

I may have found a work-around, does the following make sense? The original seller of the board said that one capacitor might not be connected to ground. I searched Twitter for "s2 mini" and found a person mentioning the same idea . If this capacitor isn't connected to ground, it's like it isn't par...

Thanks for the reply. This is the schematic for the genuine Wemos Lolin S2 Mini which shows a 10k pullup resistor connected to EN. I think I may have a clone, but the board looks very similar to this photo of the genuine product: https://www.wemos.cc/en/latest/_static/boards/s2_mini_v1.0.0_1_16x16.j...

Thanks for the replies. I didn't have a 10K resistor handy, so I tried putting a paperclip (<1 Ohm) between the EN and 3V3 pads and WiFi worked fine with no reboots . What could this mean? I measured the resistance of the 5 resistors on the board and they all seemed approximately correct. I removed ...

I found that if I put a penny coin on the corner of the board (on top of the 1 and EN pads) the device can use WiFi just fine and it does not reboot. What could be causing this problem and how do I solve it? Is this an interference issue with the on-board antenna? BTW, looking closely at the board, ...

Hi, When I run the WiFiScan example code , my Lolin S2 Mini seems to reboot during WiFi.scanNetworks(), unless I place the board on an anti-static bag or hold the corner of the board with my fingers (approximately around the 2 pads labeled 1/EN and a big ground pad at the corner). Presumably some pa...