[Feature] Resistance bands mode

[jeffss00]

Thanks for the great project. I was wondering if it's possible to add a resistance band mode? I added this to a different open source SPA project and it's clunky as an app but the mode is awesome.

There's a lot of good data supporting variable resistance training and I like having a pre defined weight added throughout the lift. The other modes can be unpredictable and a bit more difficult to progressively overload, whereas I may have 80lbs on each band and a max of 20lbs added throughout the motion. The bands add the least weight at the bottom of the lift and the most at the top.

Now I have two dials when increasing weight and I've found it helps break through plateaus.

Are you interested in a PR on this?

[9thLevelSoftware]

Sounds interesting. Send it on over and I'll take a peek.

[ikim67]

When they first released Echo, the help also specified a Bands mode. They dropped that from the Help section on the next build.

I wouldn't be surprised if they have a firmware build with bands already (perhaps in current) - same as with that Row mode they spoke about.

[9thLevelSoftware]

They also had "Chains" mode referenced at one point, and dude on reddit also mentioned isometric was under consideration at some point. Problem with not having access to the firmware and source code (despite the fact that they think I'm a hardcore hacker that is out to destroy them and steal all their work) is I can't really verify or harness any of it reliably. Reverse engineering the existing and documented exercise modes was fairly simple by comparison, because there was a metric to compare against. Flying completely blind on the other hand is dangerous, because if I miscalculate one ble package, I rip your arms off even though you only selected 5 lbs :-)

[ikim67]

Arms are overrated. Was hoping we might have seen a disgruntled employee drop the source for the firmware at some point but it never seemed to happen.

…

On Sat, Jun 20, 2026 at 2:24 PM Devil ***@***.***> wrote: *9thLevelSoftware* left a comment (9thLevelSoftware/Project-Phoenix-MP#580) <#580 (comment)> They also had "Chains" mode referenced at one point, and dude on reddit also mentioned isometric was under consideration at some point. Problem with not having access to the firmware and source code (despite the fact that they think I'm a hardcore hacker that is out to destroy them and steal all their work) is I can't really verify or harness any of it reliably. Reverse engineering the existing and documented exercises modes was fairly simple by comparison, because there was a metric to compare against. Flying completely blind on the other hand is dangerous, because if I miscalculate one ble package, I rip your arms off even though you only selected 5 lbs :-) — Reply to this email directly, view it on GitHub <#580?email_source=notifications&email_token=ALP6ZAHTYJAFZFTWBMLJU3D5A3JGXA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTINZVHE2TGNZYGE4KM4TFMFZW63VHMNXW23LFNZ2KKZLWMVXHJLDGN5XXIZLSL5RWY2LDNM#issuecomment-4759537818>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ALP6ZAFAVTFCTGKS4IPTRF35A3JGXAVCNFSNUABGKJSXA33TNF2G64TZHMYTCMBUGAZDINBWHA5US43TOVSTWNBWHA4DIMZSGM4THILWAI> . Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/ALP6ZACNTBIMOSJT4HI52XT5A3JGXA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTINZVHE2TGNZYGE4KM4TFMFZW63VHMNXW23LFNZ2KKZLWMVXHJKTGN5XXIZLSL5UW64Y> and Android <https://github.com/notifications/mobile/android/ALP6ZADMHZV4ARSI4SVASYD5A3JGXA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTINZVHE2TGNZYGE4KM4TFMFZW63VHMNXW23LFNZ2KKZLWMVXHJLTGN5XXIZLSL5QW4ZDSN5UWI>. Download it today! You are receiving this because you commented.Message ID: ***@***.***>