DAVEga: Battery monitor, odometer, speedometer

ESK8 Electronics
1091

It would be helpful if you could try connecting it to VESC. If that works, it means the serial connection is functional. That’s used both for VESC communication and for FW update. There could be a problem in the RESET net – that’s the diode, resistor, and the 100n cap. Its purpose is to reset the MCU before the FW upload.

One more thing. In your Arduino IDE preferences, please turn the “Show verbose output during:” for both compilation and update. Then please send the console output again. It should have more details.

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1093

The diode (1N4148) is backwards on one of those (the top one in the photo). Direction is critical.

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1094

I reversed the Diode so both DAVEgas are correct now. This is the error I get.

avrdude: Version 6.3, compiled on Jan 17 2017 at 12:00:53 Copyright © 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright © 2007-2014 Joerg Wunsch

     System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"

     Using Port                    : COM7
     Using Programmer              : arduino
     Overriding Baud Rate          : 57600

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x08 avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xa0 avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xfc avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00 avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x20 avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xfc avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x08 avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x20 avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xfc avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x08

Thanks for your help everyone! I will check the connection with the Vesc later today.

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1095

This looks wrong. Should be 115200. What do you have in Tools > Board and Tools > Processor?

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1096

Adurino nano and atmega328p I saw that the baud rate wasnt right but didnt know how to change it…

Same exact readout on both boards (After it has been fixed).

1097

Tools > Board > Board Manager... then find Arduino AVR Boards (should be at the top). What version do you have? If not the latest, try installing the latest.

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1098

Well guess what… it worked! Hahaha thank you so much!! Im glad it was vecause I overlooked something dumb15498309610667532707130882520364

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1099

Great! 10c

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1100

IMG_20190210_184700_776 IMG_20190210_184700_778

a new DAVEga installed! on my esk8 this time!

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1101

@mmaner I am about to get the latest version of your enclosure printed. I’m trying to wrap my head around the buttons. I understand that the printed caps should be glued to the buttons, but what exactly is the idea for holding the buttons in place?

I really like the metal panel mount buttons that @lrdesigns uses. They look great and are easy to install. I’m afraid they are slightly too big for your enclosure. Any ideas for a simple mod that would allow using those? Thanks.

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1102

There are recesses on the inside of the case that hold the buttons in place, I just use a little hot glue to keep them from moving. I wish I could find some 6 or 8 mm momentary switches to use.

1103

Hey everyone. Another issue. It isnt reading from the vesc. I have Rx to rx Tx to tx Ground to ground 5v to 5v Both Davegas have the same problem and it happens to both vescs. Baud rate is 115200 20190215_111641 Thanks again all.

1104

Do you mean you have TX to TX on both sides (VESC and DAVE) or is it implied you mean you have a TX to RX (VESC to DAVE)?

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1105

Same as this.

1106
  1. App Settings; General; App to Use: PPM and UART

Did you do this? I did setup yesterday and it works great!

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1107

I can print you the enclosure and mount the buttons and send it to you if you like, I have all the pieces on my bench. It will take awhile to get to you.

1108

I could print it for you… :slight_smile: I still owe you something :wink: :slight_smile: @mmaner just offering it bc. I’m within the EU… :slight_smile:

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1109

Yeah i did

1110

Cool, no worries, I can send the buttons if they are difficult to source there.

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1111

That’s very nice of you. Thanks for the offer, but shipping from US to EU costs arm and leg. It’s not worth it. I can ask a friend to print it for me.

Could you please just share the link for the correct buttons? I’m sure it’s somewhere in this thread, but I can’t find it. There’s too much stuff already.

1 Like