Great video - worth mentioning that the 5V input has no over voltage protection - it does have reverse polarity protection and a fuse. The watchdog isn't currently populated or available yet.
Just ran into your project and it looks promising and interesting will now go back and review your previous videos to get up to speed. Thank you for creating them and the project.
Thank you Adam, I find your explanations clear to follow. It helps me setting up the BMS. Thank you to Stuart as well for the great work he is doing; I watched all his videos and obviously subscribed to both channels, yours and Stuart's.
Thanks Adam. At 15:22 is that missing temperature data a result of one module being different to the others? Do you have a software glitch/bad connector/faulty output? Maybe that Version 4.2 board is not outputting the data, and data from the older boards could even be shifted to one side, rather than leaving a gap in the display. It's worth disconnecting/disabling that board temporarily to see what happens to the display.
The board not reporting temperature is the one with the ceramic resistor rather than the surface mount solutions. It’s likely either I’ve not soldered the thermistor correctly, or it’s damaged under the power resistor, but I’ll have to remove the resistor to find out. I’ll probably check that when I get the proper resistors. Probably not video worthy, but we’ll see.
Yeah, that is cool RS485 coming. I use it along with MQTT for all my systems now. I have the PZEM-017 current shunt if you want to try that one. I just built a large monitor system with multiple shunts, one for each major item.
Slightly jealous... I managed to melt that nice controller board you sent me and had to build a temporary measure, went with the d1 mini pro this time around. I'm also in need of 1 but maybe 2 or 3 v4.21 cell module boards as my now 14s pack only has 13 working modules lol. That new controller looks impressive but overkill for me... :)
Id love to have a good bms for my leaf powerwall. Ive been using it for a year with no bms but i hear its dangerous. If you have any advice for the 24 volt leaf power wall please let me know. I can tell you really know your stuff and i trust your opinions as to what i should buy and install
yes i will use the new 32s option, it's a peugeot 106 same as the saxo that were PSA first gen of ev's. Good car for diy.
3 ปีที่แล้ว
2.5 years since the V3 update? Wow, time flies! Adam, are you still keeping an eye on cheap charge controllers? I'm looking for a cheapy that can safely charge a 3s li-ion battery pack and found some $20 PWM controllers that claim to stop charging at an user defined current...
hi adam big fan i have a question about your epever dashboard , i am setting up my own for my epever UPower inverter charger . i am using ubuntu, python, influxdb, grafana and everything work fine except for the 32 bits register conversion, for example PVwatt is split in two 16 bit data high and low . i noticed that you did a bit of program to solve this issue , i hope you can share your solution . thank you adam
I have got 30 cell modules for 75 euros populated and shipped to Italy (no attiny tough, as per pittaway's GitHub explaination). The newest esp32 controller were 64 euros for two of them (minimum quantity), but they failed revision process and i decided to go with the simpler 8266 controller (version 4), which were 15 euros shipped for 5 pcbs
Great video - worth mentioning that the 5V input has no over voltage protection - it does have reverse polarity protection and a fuse. The watchdog isn't currently populated or available yet.
So no more than one smidge over five volts. Gotcha! :-)
Cheers Stuart
Instablaster...
Just ran into your project and it looks promising and interesting will now go back and review your previous videos to get up to speed. Thank you for creating them and the project.
Great update. Thanks for going over it all👍
No worries. Good to hear from you GA.
Nice to see a new video from you Adam:-)
Thanks Fred. :-)
Thank you Adam, I find your explanations clear to follow. It helps me setting up the BMS. Thank you to Stuart as well for the great work he is doing; I watched all his videos and obviously subscribed to both channels, yours and Stuart's.
Adam/Stuart great video and hardware. Loving where this is going! Keep it up.
All Stuart’s work really. Cheers Raith.
I have 5 of these controller boards on the way to trial, Stuart Pittaway has made great leap forward on these diyBMS.
Nice to see you still at it Adam.
Very comprehensive update on the DIY BMS. Thanks.
Cheers John.
The sun is back ... guess we are all starting our nice little projects again. Great video Adam!
Absolutely! Cheers Luc
Good to see you back with this upgrade Adam!
Just started programing the 4.21 modules! This is so good!! Portugal has a fan ahahH
Nice video. I liked it
Thanks Adam. At 15:22 is that missing temperature data a result of one module being different to the others? Do you have a software glitch/bad connector/faulty output? Maybe that Version 4.2 board is not outputting the data, and data from the older boards could even be shifted to one side, rather than leaving a gap in the display. It's worth disconnecting/disabling that board temporarily to see what happens to the display.
The board not reporting temperature is the one with the ceramic resistor rather than the surface mount solutions. It’s likely either I’ve not soldered the thermistor correctly, or it’s damaged under the power resistor, but I’ll have to remove the resistor to find out. I’ll probably check that when I get the proper resistors. Probably not video worthy, but we’ll see.
@@AdamWelchUK Thanks. So it's some work to do, but probably easy to sort out. Awesome job, nonetheless!
Yeah, that is cool RS485 coming. I use it along with MQTT for all my systems now. I have the PZEM-017 current shunt if you want to try that one. I just built a large monitor system with multiple shunts, one for each major item.
Slightly jealous...
I managed to melt that nice controller board you sent me and had to build a temporary measure, went with the d1 mini pro this time around. I'm also in need of 1 but maybe 2 or 3 v4.21 cell module boards as my now 14s pack only has 13 working modules lol. That new controller looks impressive but overkill for me... :)
Great content..... are you disposing of the 3.0 version...
I need to find some use for it if I can.
@@AdamWelchUK Or a buyer... 😉
Very nice.
Id love to have a good bms for my leaf powerwall. Ive been using it for a year with no bms but i hear its dangerous. If you have any advice for the 24 volt leaf power wall please let me know. I can tell you really know your stuff and i trust your opinions as to what i should buy and install
Nice video Sir :D
Good stuff Adam. The link to Stuart’s youtube channel, doesn’t do anything on my iPad?
Oh ‘eck. Thanks, I’ll check.
Did you solder all parts by yourself or did you buy them somewhere already soldered?
that new controller would look nice in my car :P
Is it an ev? :-)
yes i will use the new 32s option, it's a peugeot 106 same as the saxo that were PSA first gen of ev's. Good car for diy.
2.5 years since the V3 update? Wow, time flies!
Adam, are you still keeping an eye on cheap charge controllers?
I'm looking for a cheapy that can safely charge a 3s li-ion battery pack and found some $20 PWM controllers that claim to stop charging at an user defined current...
Yes I want 10 amp mppt pcbs. Plenty of 5 amps. Maybe a video to upgrade to 10 amps
where can I get the ket for the Diy BMS already build and program
ok how do i get back to the beginning a capacitor does what?
hi adam big fan
i have a question about your epever dashboard , i am setting up my own for my epever UPower inverter charger .
i am using ubuntu, python, influxdb, grafana and everything work fine except for the 32 bits register conversion, for example PVwatt is split in two 16 bit data high and low .
i noticed that you did a bit of program to solve this issue , i hope you can share your solution .
thank you adam
Hi .Any iddea on how much costs to have jlcpcb build v 4.4 (pick and place)?
I have got 30 cell modules for 75 euros populated and shipped to Italy (no attiny tough, as per pittaway's GitHub explaination). The newest esp32 controller were 64 euros for two of them (minimum quantity), but they failed revision process and i decided to go with the simpler 8266 controller (version 4), which were 15 euros shipped for 5 pcbs
Great video, but even as a a techno-anorak it lost me around I-squared-C at about 50 seconds.
Would probably help people if it was in plain English.
Hi adam, perhaps a silly question, but is this possible to use with Lifepo4?
Not silly at all - yes it is. I already have one fitted to my 4s3p lifepo4 bank. Works perfectly.
All well above my abilities. LOL
Passive topology wasting powers
In video ads ?? that's me unsubscribed !!!!
It’s default now for TH-cam. You can watch my videos add free on odyssey / lbry if you’d rather.