Yup, they’re not part of the motor phase wires. if not plugged in then they’re basically not there
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What’s the difference between metr and a bluetooth module? What does each one of them have to offer?
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And the benefit of running sensorless vs sensored is ?
Sensors help smooth start in the right direction. It helps the ESC figure out what the motor can is doing before back EMF is strong enough to determine phase timing. Usually sensored transfers to sensorless once a certain RPM is reached, usually quite low at only a few mph is enough to switch over.
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A metr is a bluetooth module. It’s a particular brand that comes with a comprehensive app and well supported
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Makes a lot more sense now, I appreciate this response. Do you prefer one over the other
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Hello helpful people! n00b here working on my first build and stuck on VESC programming. This is my first time with VESC and despite lots of reading it seems I have some challenges - maybe related to old hardware or firmware.
Problem: Where I’m stuck is unsuccessful attempts to install bootloader or update FW on Maytech 4.12 singles. So far tried 2 methods: 1. in the Tool and 2. the SWD Prog method (which I suspect is hampered by “limited mode”). My next inclination is to dive into the STLink method to install bootloader, enabling FW updates.
Background: My build is dual motor with (2) second-hand Maytech 4.12 singles currently on v3.38 FW. Both 4.12 VESC’s individually connect to the tool, I’ve tried 3 tool versions: current VESC Tool 2.03, current ACK 3.103, and old VESC Tool 0.94 (compatible with FW3.38 per the archive matrix). The 2 current tool versions report “this ESC has old firmware” and therefore operate in “limited mode”. The 0.94 VESC Tool fully connects and runs motor detection but I ran into issues with PPM Input setup (the VESC was showing bogus trigger response during throttle calibration)… hence my interest in upgrading FW to see if that resolves it. My n00b assessment of options are…
- Should I stick with FW 3.38 on this hardware and not worry about future FW updates? (Maytech 4.12 reported as HW:410) … and battle my PPM Input goblins ?
…or… - Should I try to install Bootloader in order to update FW ? Methods I have read about, tried first 2 already…
a. Directly in the tool: Bootloader and FW updates have proven unsuccessful in all 3 Tools.
b. SWD Prog using one VESC to flash the other: Among the 3 tools, only VESC Tool 2.03 has the “SWD Programming” menu option. But since it’s running in “limited mode” I suspect that feature is unsupported. Because when I connect CLK/GND/DIO between the 2 VESC’s it doesn’t recognize the anything in the SWD Prog menu.
c. I now have the STLink programmer in-hand. I intend to dive into this method soon…if this would be an advisable approach?
… or … - Other strategies to pursue ?
Sorry for the loooong post… just trying to get all the context out there to focus the collective brilliant minds on helping me troubleshoot.
Any wisdom and guidance would be much appreciated! Thanks in advance!
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Personally I like sensors, never had any real issues with em and startup is always smooth and quiet… But some people have bad luck with em, I say try it, but it doesn’t work out then remove em, just another part to fail to some people
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@kook is your man.
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Remote connected on the uart port on master vesc and bluetooth module on uart slave vesc: can or can’t do?
Nah those are like 1A rated.
Similar plastic one that shows rating.
Best to just find one that has a current rating at or above your desired charge rate.
I bought these the other day. All metal and 10A rated.
https://www.amazon.com/dp/B07S5ZLFDG/ref=cm_sw_r_sms_apa_i_FZnPEbMEXZZ75
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Hey All, I’m currently waiting for all my parts to arrive and been seeing tons and tons of folks use Metr logs to aid in troubleshooting. I feel like this would be a very wise purchase to make as a new builder.
My question: what is the difference between Metr Pro and Metr Pro Unity? Is it just the small form factor that allows the unity to fit inside the enclosure? I’m in for a purchase of two NeoBox V6’s and curious which of the two Metr options would be best for this ESC as well as any additional information you think I need to know about Metr. Thanks!
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if you’re purchasing neoboxes, you want the metr pro, not the metr pro unity
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All secrets will be revealed. BTW, one of the very best sellers on here.
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That answers it, thanks for the quick solve
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yep can do. Connect them via Can and you are good to go. Make sure to set your “App settings” to UART on both vescs
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Thank you!
It’s a dual vesc, i assume it’s already internally connected?
Thanks for the link! Definitely going through this thread now.
Followup question though, do most folks who have Metr use it to setup/change their ESC config settings over manually configuring in the VESC software?
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it depends on the vesc. Some do it internally, some still need a canbus cable.
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fuck NO… that’s fukking plastic
probably rated for less than an amp
looks like @Venom121212 already sorted you!
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