I think your voltage curve for a 12s battery is a bit « high » when I charge my board to around 100% it shows this. I charge the cells at around 3.15 to preserve their lifespan.
Beautiful! Yeah, it fits Evo really well.
Oh you mean custom discharge curve. Yeah, that’s definitely possible. I’ve had that on my TODO list for quite a while. Will prioritize it.
Any update on when the next batch will be ready for shipping?
I’m really sorry about the long waiting. Many things have gone wrong lately. First, the supply of cables got severely delayed. Then I got a bad batch of displays with very low brightness:
After that, I got a bad batch of ESP32 boards for a change. Those boards cause the MCU to restart whenever the WiFi is enabled. Even worse, I haven’t noticed this and I shipped some DAVEGAs with the bad boards. I currently know of 3 people who got one of these and I’ll be sorting it out with them.
The situation now is:
If anyone is OK with a the bad WiFi, I still have a few units on hand that I can ship straight away with 10 EUR discount.
No ETA for good boards at this point. Depends on what I receive in the next ESP32 batch and/or when the new supplier is going to be able to get them shipped.
No problem man! things like this happen and you can’t control it. I hope you have gotten your money back with the bad boards and screens.
What is wifi used for again?
Backups and FW-Updates
What’s the WiFi used for? Is it for more convenient Firmware updates?
Yes, it’s just a convenience thing. You can do firmware updates and backup over a USB cable as well. The trouble is that you have to take the electronics out of the housing to access the microUSB port so it’s a bit of a hassle.
I love this feature. All my other tech is a pain to update
@janpom Does the WiFi work through an app or website? If it’s an app is it for Android or IOS?
If I bought a board without WiFi now could I buy one with WiFi later on?
Website. You can currently only have one WiFi network configured. I have that set to my home wifi and only use it at home. You can also make a wifi hotspot on your mobile phone if you wanted to be able to connect anywhere.
Sure, no problem.
For the later on upgrade to WiFi would it be an easy swap? Would I need to replace the whole Davega or could I just swap out the boards? What would the cost be for an upgrade from non WiFi to WiFi be?
Sorry for all the questions, just making sure it will all work for me 
Inquiring mind here wants to know also.
Yes, just change the electronics.
You would just pay for the electronics. Say 35 EUR shipped. That’s only for the upgrade if you purchased the non-WiFi module before. I normally won’t be offering the electronics alone.
Thanks man!! PM Incoming about payment
Hi @janpom, can you tell me how far back in line I am? If I’m a couple months out still, then I’m interested in buying a setup with a bad wifi board. To guage the inconvenience, how often is connection typically needed (wifi/USB) for backups and fw updates?
24 orders ahead of you. I finally got some good ESP32 chips in and should be able to get about 10 orders sorted out the next week. Yours probably won’t ship before late March, sorry.
Regarding running without WiFi, I don’t think it’s that much of a problem. Firmware updates shouldn’t be that often now since things are getting fairly stable. Doing regular backups is still recommended though. The frequency depends on how much data you’re OK to loose. Taking the DAVEGA out of the housing anytime you want to do a backup may be tedious. You could always do a sort of poor man’s backup by simply taking a picture of the lifetime screen and the parts lifetime screen.
BTW, I’m planing significant improvements to the davega-tool that will make bootloader and firmware updates over USB a lot more convenient. The idea is that it will automatically download all the files from the server so you’ll no longer need to worry about finding your device ID and manually downloading the files for it.
