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.

I installed this in my Prusa MINI+ running FW6.2.6. To activate a PrusaLink connection between my computer and printer I hand-entered the WiFi username and password using the printer's WiFi Wizard. Then, I typed the printer's IP address into my computer browser's command line, this opens PrusaLink. There, I entered the printer's username and password found in the printer's PrusaLink menu. When PrusaLink opens in the browser, simply drag a *. bgcode ready for printing into the File Upload field and it begins transferring to the printer. The printer asks if you want to print after the transfer is complete .

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.

As far as product getting here on time and being well packet, and fully funtioning, perfect! Great seller great quality and packaging. Now, as far as the module itself, it is quite hard to work with, if you're a beginner like myself, you'd be better off getting a 5V module (this is 3.3V so you have to worry about stepping down voltage if your system is 5V) and that is more breadboard friendly, such as other models of the ESP8266. There are many out there, just check it out. On the other hand if you know how to work with this module, it's the most inexpensive and thus the best option to put in a final project that you don't want to spend too much on.

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.

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.

Will not work. Keep getting the following print out on my terminal display. Does anybody know what this means? ets Jan 8 2013,rst cause:2, boot mode:(3,2) load 0x40100000, len 1396, room 16 tail 4 chksum 0x89 load 0x3ffe8000, len 776, room 4 tail 4 chksum 0xe8 load 0x3ffe8308, len 540, room 4 tail 8 chksum 0xc0 csum 0xc0 2nd boot version : 1.4(b1) SPI Speed : 40MHz SPI Mode : DIO SPI Flash Size & Map: 8Mbit(512KB+512KB) jump to run user1 @ 1000 ¦n't use rtc mem data Fatal exception (28): epc1=0x402116bf, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000 ets Jan 8 2013,rst cause:2, boot mode:(3,2) load 0x40100000, len 1396, room 16 tail 4 chksum 0x89 load 0x3ffe8000, len 776, room 4 tail 4 chksum 0xe8 load 0x3ffe8308, len 540, room 4 tail 8 chksum 0xc0 csum 0xc0 2nd boot version : 1.4(b1) SPI Speed : 40MHz SPI Mode : DIO SPI Flash Size & Map: 8Mbit(512KB+512KB) jump to run user1 @ 1000 ¦n't use rtc mem data Fatal exception (28): epc1=0x402116bf, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000 ets Jan 8 2013,rst cause:2, boot mode:(3,2) load 0x40100000, len 1396, room 16 tail 4 chksum 0x89 load 0x3ffe8000, len 776, room 4 tail 4 chksum 0xe8 load 0x3ffe8308, len 540, room 4 tail 8 chksum 0xc0 csum 0xc0 2nd boot version : 1.4(b1) SPI Speed : 40MHz SPI Mode : DIO SPI Flash Size & Map: 8Mbit(512KB+512KB) jump to run user1 @ 1000 ¦n't use rtc mem data r¦;l¦d¦ Ai-Thinker Technology Co.,Ltd. ready