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Looks very interesting (and useful)!

+1 for what @Mikmonken says...3.6v is getting down to the “should work, but no margin for error...” input voltage range from the battery, so I’d first charge it up to full capacity and see what your results are. But that said, I would expect to see more than 0.8-1.7v now, so I would suspect a...

Check the voltage on the VCC/GND pins on the GY-521 after it’s been soldered and verify that you’re getting close to 5V when powered on. I had a similar issue with one of my builds and it turned out to be a lifted trace due to me applying too much heat when soldering the VCC pin on the gyro. A...

It’s hard to say what the periodic reporting failure could be, as there are so many variables. I would probably lean towards some sort of network / WiFi issue if I were troubleshooting it. Perhaps it could be some sort of interference with the WiFi signal; maybe try changing the channel on...

I’d actually not looked too closely at the RSSI since mine always reported fine. I went back and took a look at what had been logged and it averaged between -80 to -85! But, as I said earlier, this value is a relative term so comparing across devices / environments isn’t necessarily helpful...

Also note that the current code defines a low battery state at 3.3 volts. When it reaches this threshold, it drops the WiFi transmit power to minimum, and lengthens the sleep time to at least 1 hour (or 3 times your specified sleep time, whichever is longest). It’s purpose is to try to survive...

The short answer is, yes, -77 is a marginal RSSI value. For reliable packet delivery, an RSSI of >-70 is recommended. Anything <-80 is recommended just to maintain basic connectivity to the router. RSSI is a relative term and how it’s measured varies by manufacurer, but it does give at least...

You don’t have to be too picky about the wire, just any thin-gauge wire (for flexibility) typically used in electronics projects should work. Something like a DuPont jumper wire used for breadboarding, just cut off the connectors and strip...

Ah, that would have been my first guess @tonari, sorry about your luck on the desoldering. Those pads can be a little delicate and you do have to take care when soldering / desoldering. Since you’re so close and the trace is bad anyway, you might be able to salvage it by taking a couple of...

@tonari, been reading about your woes here and on github. I don’t have many suggestions other than it appears the WeMos connection between RST and D0 isn’t good...maybe a soldering issue. If you could post some more screenshots of your board from some other angles, especially showing the diode...

Me please! (And thanks for the giveaway!)

So, I assume you compiled and downloaded picprog.ino to the Uno before you connected to the STC as pointed out in the README? If not, I’d try that first and open the serial monitor without connections to the STC to see if you get any output. You should at last see the intro message from the...

I’m not in a position to recompile the flasher in the IDE at the moment, but I believe those messages are compiler warnings, not errors and can be safely ignored. (The const hex data is assumed to be an integer value by the IDE and is being assigned to a signed char data type. Signed char...

I resolved the issue with communicating with the reflashed STC, and all’s well now. I’m able to read data over the comm line as expected, so no issues with the new STC in case anyone is interested...

Yes, I just purchased one from here, a 110v model with the A400P board, and was able to flash the newest firmware just fine. Unfortunately I’ve not had any luck yet in getting it to communicate using alphaomega’s com.ino sketch, so I’m not sure what’s going on here yet. Still, if all you’re...

Count me in...

Sounds like a great start...I'd hoped to be in a position to contribute by now, but it's been going pretty slowly for me. I managed to get a development environment built in Linux and was feeling pretty good about where I was at, flashed my ESP with some sample code and bricked it. I was able...

Okay Mats, I'll head over and take a look. No worries on cleaning up the code / documentation at this point. Give me a few days to wrap my head around Sming and what you've posted and I'll see if I can contribute. ...And that's the "fun part", right? :)

Yeah, I didn't elaborate in my original post (it was long enough already!), but you were my inspiration for this! I took a quick look at Sming and played around with the ESP-01, but then ESP support was added to the IDE (with which I was already familiar), and I was having issues with the ESP...

Hi all...long time lurker, first time contributor here. First, I want to thank Mats for all of his hard work on this project. I appreciate it more than I can ever repay you for your contributions. For some time I've been working on a wireless logger for the STC-1000+, based on the...