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Yeah, I finally found the board on Aliexpress and the reviews all seem positive there. It's just the website that seems off.

Also not promising: Robotdyn is rated "Poor" with 2 / 5 on Trustpilot

Their products are sold sparingly now at other places, and the Google results for aliexpress and banggood lead to dead links.. I'd like to hope it's still good, but dead-end emails to sales and then support don't give me a good feeling.. and no confirmation email isn't ideal either.. I'm hoping...

Just a heads up for everyone that the Robotdyn site seems defunct. No confirmation email, and the emails lead to dead ends. My bank statement shows the card info was manually entered rather than charged normally when entered on a site. Searches for them don't show promising results on being...

Thanks for the info! I just realized the relay board I posted about earlier doesn't have a 5V pin, which I need for my pressure transducer (with voltage divider to get it back to the 3.3V input range on the return side), so I guess I'll now be ordering the board you shared since it does support...

@radzieju Sorry for the questions! Just one more. If powered through AC, does that then power the module as well? Looks like a stepdown is attached, and not worrying about an external stepdown to power the ESP32 would be awesome.

@radzieju can you run a single hot line into the AC In to power the relay circuits? Or do you still have to supply hot lines to each relay's COM line? Seems like it would be the main line supply for the relay circuits but I can't find that explicitly on their site.

Very nicely done, and thanks for the share! Sounds to be very reliable with such a load and a lot going on.

Like an I2C breakout interface? I'm making one control box per fermenter, so I'd only need pressure and temp sensors for each. Seems I'd have enough I/O space here. This might be overkill for that simple task, but the opportunity to toy with this is calling, hah.

Oh that is nice! Does it let you do a single hot wire in for those relays (the orange block)? Or do you still need to run hot to each relay? For desoldering the micro switches, do you mean the four small buttons? The price is fantastic as well. I wish I had seen this before I bought several of...

Cool. 3 minutes isn't a problem at all. Much appreciated! Hopefully, someone else interested in this board will see this save some headache and worry

Thanks @BrunDog! I was happy to have it start working; patience was definitely a virtue as I tried a few ways to get things to work. I'm excited to use this board and save significant square inches in a project box. I'll look at the AP mode setup when I buy my next of this board. That will be...

Dang, and another update. I let it sit in its AP mode while I messed with something else. After a few moments, the device clicked off and rebooted. Once back up, it appeared on my WiFi list and BC can control the relays (only 3 of the 4 can be used since pin 21 can't be used for this, but I only...

As a follow up, I reinstalled 45O, walked away, came back, and then tried the setup routine. It let me enter "0&15%," let me input things, then let me save. I rebooted the device... and it's still not appearing on my WiFi network, but I see its AP in my phone's WiFi list..

Has anyone tried using this ESP32 + relay board from Lilygo (and with success)? Amazon.com: LILYGO TTGO T-Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi BLE Remote Switch Control (T-Relay T- U2T Kit) : Electronics It's incredibly ideal for a BC setup, but it...

TL;DR: I successfully drilled through the Spike CF10 coil's TC cap to add gas and liquid posts. I thought I'd share this in case anyone has considered the same. I bought the BrewBuilt 14g Uni+ over a year ago and have loved it. I debated between it and the Spike CF10, and I liked the...

Very cool! Count me in

I've enabled the interface logs now, so I'll watch those for a bit. So far, I just see the series of Tx and Rx, with an occasional 5 second delay, w/ disconnect then a reconnect. I'm gonna do a factory reset on my router for good measure. It's being obnoxious when I go into its settings, so...

Here's a screenshot that shows the connects and drops in a small time frame. My keezer controller stayed connected for a good bit here while my fermentation controller dropped and reconnected a lot, then the keezer joins in the same cycle. Based on Jason's question below, I see the drops do...

Netgear 4-Stream AX1800 WiFi 6. PC is connected via WiFi 6. I assume the controllers connect via WiFi 4, both 2.4Ghz. This is a more recent development; the PC had always been WiFi 6. Did that cover the WiFi system question?