diff --git a/src/esp32/main-esp32.cpp b/src/esp32/main-esp32.cpp index e8512e2ea..67256bc7f 100644 --- a/src/esp32/main-esp32.cpp +++ b/src/esp32/main-esp32.cpp @@ -156,7 +156,9 @@ void axp192Init() void esp32Setup() { - randomSeed(esp_random()); // ESP docs say this is fairly random + uint32_t seed = esp_random(); + DEBUG_MSG("Setting random seed %u\n", seed); + randomSeed(seed); // ESP docs say this is fairly random #ifdef AXP192_SLAVE_ADDRESS axp192Init(); @@ -185,7 +187,11 @@ Periodic axpDebugOutput(axpDebugRead); /** * Per @spattinson - * MIN_BAT_MILLIVOLTS seems high. Typical 18650 are different chemistry to LiPo, even for LiPos that chart seems a bit off, other charts put 3690mV at about 30% for a lipo, for 18650 i think 10% remaining iis in the region of 3.2-3.3V. Reference 1st graph in [this test report](https://lygte-info.dk/review/batteries2012/Samsung%20INR18650-30Q%203000mAh%20%28Pink%29%20UK.html) looking at the red line - discharge at 0.2A - he gets a capacity of 2900mah, 90% of 2900 = 2610, that point in the graph looks to be a shade above 3.2V + * MIN_BAT_MILLIVOLTS seems high. Typical 18650 are different chemistry to LiPo, even for LiPos that chart seems a bit off, other + * charts put 3690mV at about 30% for a lipo, for 18650 i think 10% remaining iis in the region of 3.2-3.3V. Reference 1st graph + * in [this test report](https://lygte-info.dk/review/batteries2012/Samsung%20INR18650-30Q%203000mAh%20%28Pink%29%20UK.html) + * looking at the red line - discharge at 0.2A - he gets a capacity of 2900mah, 90% of 2900 = 2610, that point in the graph looks + * to be a shade above 3.2V */ #define MIN_BAT_MILLIVOLTS 3250 // millivolts. 10% per https://blog.ampow.com/lipo-voltage-chart/