ESP8266 ESP-01S WiFi Serial Transceiver Module with 4MB Flash

Installed the board, updated the firmware on the Mini, and now I had Wifi capability. Easy to transfer files over to the Mini+ now via PrusaLink or PrusaConnect through Prusaslicer. Wish I'd bought one sooner, though really I don't know why the printer doesn't come with it in the first place.

Bought to upgrade my Prusa Mini - Works perfectly well. Drop in and upgrade your firmware.

Fit right in place on the Prusa Mini+. I had to bend out the case a little bit when first installing, but the pins fit right into place, and the firmware flashed immediately on reboot.

This was plug-and-play with my Prusa Mini 3D printer.

Purchased this based on other reviews that said it works with the Prusca. Worked like a charm with no issues. Such a big difference being able to send prints to the printer without the USB! I really didn't like the USB transfer process but got used to it. Now after being spoiled with this Wifi card, I look back and really hate the USB process now! Big quality of life luxury for less than $10 shipped. Great purchase.

Very difficult to get to work with arduino though I did eventually get it to work only to find out it wouldn't do what I needed, which was downloading google calendar data directly from google, which requires ssl, and this does not support that. I'm not basing my rating on the ssl issue as I understand why it doesn't have it, but the difficulty of getting this to work was almost unbearable. I spent a lot of time on it, though I'm sure there is a lot more examples and docs out now that my make it easier. Also, I tried the built in online update command on it and it put it into an infinite loop that I have not been able to break it out of. I tried resetting it, leaving it disconnected from everything for days, everything that I can and it won't break out of the cycle. I eventually gave up and bought a replacement.

I bought these to use in my Prusa Mini 3D printers to add WiFi capabilities. The first one worked great, instantly connected. The second one just had endless problems and would basically reset it’s connection over and over. After hours of firmware reinstalling and troubleshooting, I thought I should swap out the esp32 with the first one and boom! it was working perfectly. I bought two more and those worked great too. Obviously this small an order not a big enough sample size to draw an accurate conclusion, but just know that it sounds like getting duds with these are not uncommon.

LITTLE POWERHOUSE! This ESP8266 module is great for beginners and experts alike. Whether you just want to play with WiFi connected Arduino projects using AT Commands, or load Arduino IDE sketches to it to act as the microcontroller, this will do the trick. The 1MB Flash provides plenty of space and when I ran AT+CWLAP scan with it, it detected networks in my area I didn’t even know existed. Very Strong Signal! I also had it running everyone’s favorite ‘BLINK’ sketch in no time. When you do buy one (or 10) of these, I would recommend also grabbing one (or 10) of these little gems to pair with it/them - “DIYmall ESP8266 ESP-01 Breakout Board Breadboard Adapter PCB for Serial Wifi Transceiver Network” over at https://amzn.com/B01G6H46UK You can thank me later for the suggestion and you definitely will thank DIYmall for offering them. They make working with the ESP8266 that much easier! Happy Prototyping!