An Electric Scooter Community on a Mission to Stamp out Transportation Mediocrity.

Changing mobility one trip at a time.
#18654
rebellion2 wrote:
Fri Jan 03, 2020 2:42 am
Rick Sanchez wrote:
Thu Jan 02, 2020 2:26 pm
Just put a f**king zenerdiode with anything of 9 to 15V and anything over 1W in series to the positive input of*Buuuuurrrb* the LM2596, workes fine!
Maybe a dumb question, but are you able to provide a simple schematic?
[+42V]--[Zener]--[ (+) buck converter (-) ]--[GND]

marking/band on zener towards +42V
#18656
@rebellion2
Image
or take several diodes in throughput direction in series, works also. (500-700mV per regular silicon diode)
There will be no big current and therefore no big in rush at all. The biggest option would be when using a ESP32 for example but even that chips doesn't draw more than 200mA @ 3,3V. The LM2596 has a converting efficiency around 94% plus it takes approximately 5-8mA to power itself so if you lower the input voltage about 10V we're talking about 17-32 volt to the regulator what is within its operating range. 200mA @ 3,3V= 660mW, 660mW divided by 0.94~=702.1mW, for the highest current we take 17V as lowest case so 702.1mW divided by 17V = 4,13mA, 4,13ma plus 8mA selfpower is 12,13mA, 10V diodes loss times 12,13mA = 121,3mW loss in heat on the diode when powering a ESP32 in full load giving approximately 88% safety factor when using a 10V 1W type.
Cheers
#18662
MrSpriggs1 wrote:
Sat Dec 14, 2019 8:54 am
So a I started a ESP32 bluetooth version of the Arduino unlocked. Its so nice just to use my phone. If anyone is interested look at my https://hackaday.io/project/168667-elec ... r-teardown
It shouldn't be to hard to copy if you have made an Arduino Nano version before.
Cheers
На Парижских с твоего hackaday не пошло . И у меня есть опыт прошивок ninebot . Удалось заставить нюхать usb/com on pl2303 через буфер на GD 75232 . Буду пробовать все прошивки с этого ресурса . Потом отчитаюсь. Осталась только одна arduino leonardo atmega32u4 . Постараюсь не сжечь....
#18663
SneakX wrote:
Fri Jan 03, 2020 8:34 am
tried few codes (and own codes) but still no success on the ES400. still won't boot.
btw. i think yellow must be the RX but i got no text on my screen. someone have an idea how to test that?
Image
I believe the ES-400 uses CAN protocoll, so it won't work with bastis mod.
Read Rick Sanches posts on previous page.

Perhaps it's time for a dedicated thread for the ES-400, since this hack will not work for that?
#18664
vik sinikov wrote:
Fri Jan 03, 2020 9:09 am
На Парижских с твоего hackaday не пошло . И у меня есть опыт прошивок ninebot . Удалось заставить нюхать usb/com on pl2303 через буфер на GD 75232 . Буду пробовать все прошивки с этого ресурса . Потом отчитаюсь. Осталась только одна arduino leonardo atmega32u4 . Постараюсь не сжечь....
English!
#18665
UgloBuglo wrote:
Fri Jan 03, 2020 9:09 am
SneakX wrote:
Fri Jan 03, 2020 8:34 am
tried few codes (and own codes) but still no success on the ES400. still won't boot.
btw. i think yellow must be the RX but i got no text on my screen. someone have an idea how to test that?
Image
I believe the ES-400 uses CAN protocoll, so it won't work with bastis mod.
Read Rick Sanches posts on previous page.

Perhaps it's time for a dedicated thread for the ES-400, since this hack will not work for that?
it really looks like the 400 uses the CAN protocol.
i would be for it to make an ES-400 thread.
#18667
UgloBuglo wrote:
Fri Jan 03, 2020 9:11 am
vik sinikov wrote:
Fri Jan 03, 2020 9:09 am
На Парижских с твоего hackaday не пошло . И у меня есть опыт прошивок ninebot . Удалось заставить нюхать usb/com on pl2303 через буфер на GD 75232 . Буду пробовать все прошивки с этого ресурса . Потом отчитаюсь. Осталась только одна arduino leonardo atmega32u4 . Постараюсь не сжечь....
English!
On Paris from your hack did not go. I have ninebot firmware experience. I managed to get usb / com to sniff on pl2303 through the buffer on GD 75232. I will try all the firmware from this resource. Then I will report. There is only one arduino leonardo atmega32u4 left. I will try not to burn ....
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