<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Sounds reasonable and sensible. I will add it to the list.<div class=""><br class=""></div><div class="">Regards, Mark.<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 17 Aug 2021, at 3:56 PM, Alexander K <<a href="mailto:alexander.kiiash@gmail.com" class="">alexander.kiiash@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hello all.<br class="">I had very noisy readings of the 12v ADC. I tried to play with calibration values, but no luck with it. Eventually I have connected 0.1 µF capacitor to the ADC input, like described at "Minimizing Noise" article: <a href="https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/adc.html" class="">https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/adc.html</a><br class="">It might be worth considering this modification for the next hardware version.<br class="gmail-Apple-interchange-newline"></div><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">вт, 17 авг. 2021 г. в 08:31, Mark Webb-Johnson <<a href="mailto:mark@webb-johnson.net" class="">mark@webb-johnson.net</a>>:<br class=""></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;" class="">For the 4G modem options we need to go through FCC, CE, and ROHS certification. Minimising/eliminating the changes to the main board simplifies this (and brings down the exorbitant costs) but if there is anything urgent / necessary, now is the time to do it.<div class=""><br class=""></div><div class=""><div style="" class="">The goal here is to maintain 100% compatibility with existing OVMS main boards, to keep this is a simple and relatively cheap upgrade of the modem board.</div></div><div class=""><br class=""></div><div class="">So far, I have come up with this minimal list:</div><div class=""><br class=""></div><div class=""><ol class=""><li class="">Main board v3.3: Improve soldering of micro USB port. Bigger solder pads, and more solder to secure it better.<br class=""><br class=""></li><li class="">Modem board v1.3: Add support for SIM7600 module.<br class=""><br class=""></li><li class="">Modem board v1.3: Fix support for DTR sleep/awake support.</li></ol></div><div class=""><br class=""></div><div class="">Is there anything else required for this update?</div><div class=""><br class=""></div><div class="">Regards, Mark.</div><div class=""><br class=""></div></div>_______________________________________________<br class="">
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