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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">While very rudimentary this may give you some impression.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Using the Arduino IDE and WiFi library, specifically the WiFiClientTest (so full stack), no OTA on a 2mb esp32 pico (M5StickC).
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><br>
Sketch uses 633974 bytes (30%) of program storage space. Maximum is 2097152 bytes.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Global variables use 38760 bytes (11%) of dynamic memory, leaving 288920 bytes for local variables. Maximum is 327680 bytes.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Regards, <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Daniel. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Chchrobotics <chchrobotics-bounces@lists.ourshack.com>
<b>On Behalf Of </b>Charles Manning<br>
<b>Sent:</b> Monday, 21 September 2020 7:50 AM<br>
<b>To:</b> Christchurch Robotics <chchrobotics@lists.ourshack.com><br>
<b>Subject:</b> [chbot] Does anyone know how much free memory an ESP32 has?<o:p></o:p></span></p>
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<p class="MsoNormal">Hi All<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I expect there are some C-using ESP32 programmers out there...<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I am thinking of doing some experiments with the ESP32 that will indeed quite a lot of RAM.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">The ESP32s have 512bB of RAM (+ 8kB RTC RAM). but substantial amounts of that are used by the wireless stack(s).<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">DOes anyone know how much is left for application use?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">CHarles<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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