“Some time ago I passed comment in here about converting an ESP-01 to 32Mb (or 4MB). And here it is in the flesh a 32Mb ESP-01 and also at last Sonoff Upgrades. Now, why would you want to do all of that? I would suggest only if you happen to have lots of ESP-01 units lying around and Ill bet quiet a lot of you do. As for the Sonoffs well, put it this way, I just ordered another 10 chips!”