BIGTREETECH ESP8266 WiFi Transceiver Module ESP12S ESP-07 Serial Wireless DIY Accessories for SKR 2, Octopus V1.1 Motherboard

Purchased to go on a BTT SKR 2. Board is configured to run Reprap. No issues what so every. Worked first attempt . Solid connection and no drop outs. Takes about 30-40 seconds to establish a connection or boot up or reset

I bought this board to build a custom 3d printer. I'd researched for weeks on the "best" replacement boards and this one was always at the top of the list. It was delivered as promised, in beautiful packaging, with ZERO instructions. None. There's a piece of paper that says to go to their GitHub, Discord or F**ebook page. What if I don't use Discord or Facebook? Well, despite this board having dozens of options, hundreds of connectors, jumpers and headers, the "user manual" is 8 pages of useless information. Both the GitHub location and the "user manual" indicate that some drawings (very important power-related jumper settings) might be wrong. I had questions, so I tried the Discord - no answers. I tried multiple emails - no replies. After complete frustration set in, I tried Facebook. I was berated and bullied by several members (including an admin) for asking questions too "aggressively". Still no answers, though. Not a one. TLDR; buy this product ONLY if you have 100% confidence that you know how to configure and connect it because there will be no help from the people that make it. BTT has already warned me that they're going to bully and shame me some more, using my Facebook posts, if I posted an honest review. So, that's who you'd be dealing with if you need help with this or any other BigTreeTech product. They'll never get another dime from me and whoever's reading this should reconsider, as well.

Even with BTT support i was not able to get this to work with a BTT SKR2, sadly had to return it.

This is really disappointing, I tried everything to get this wifi module to work but without any success. And unfortunately BTT has provided zero support or documentation on how to configure this thing!

yea no firmware on the chip and no instructions from big tree tech. Very poor customer service makes me regret buying their mainboard for my printer.

Needs to be programed properly for use.You can't just pop it on and then have it work.You need to follow instructions on the internet to program it.