Search found 601 matches
- Wed Aug 28, 2019 8:02 pm
- Forum: ESP IoT Solution
- Topic: Increasing Battery Life While Using WiFi
- Replies: 3
- Views: 15567
Re: Increasing Battery Life While Using WiFi
You might be surprised. Try this: https://github.com/espressif/esp-idf/tree/master/examples/wifi/power_save With a combination of automatic light sleep, dynamic frequency scaling, and modem power saving, the ESP32 can maintain a WiFi connection while drawing as little as 3mA (with some spikes in the...
- Tue Aug 20, 2019 9:56 am
- Forum: Hardware
- Topic: ESP-PROG pin headers
- Replies: 4
- Views: 8696
- Fri Aug 16, 2019 8:34 am
- Forum: ESP32 Arduino
- Topic: C++: Cannot find preferences library
- Replies: 1
- Views: 2849
Re: C++: Cannot find preferences library
It's because you're in the PHX namespace there. Try "::Preferences preferences;"
- Thu Aug 15, 2019 2:57 pm
- Forum: Hardware
- Topic: ESP-PROG pin headers
- Replies: 4
- Views: 8696
Re: ESP-PROG pin headers
ESHF-105-01-L-D-SM looked good on Mouser for 5x2, no 3x2 variety in that series though.
I gave up and ended up buying both from here ("Position 6" and "Position 10"): https://www.aliexpress.com/item/33020323141.html
Delivery took ~3 weeks.
I gave up and ended up buying both from here ("Position 6" and "Position 10"): https://www.aliexpress.com/item/33020323141.html
Delivery took ~3 weeks.
- Mon Aug 12, 2019 9:59 pm
- Forum: ESP32 Arduino
- Topic: How to check the Hall sensor?
- Replies: 4
- Views: 7267
Re: How to check the Hall sensor?
Also from that link:
The ADC1 module must be enabled by calling adc1_config_width() before calling hall_sensor_read(). ADC1 should be configured for 12 bit readings, as the hall sensor readings are low values and do not cover the full range of the ADC.
Code: Select all
adc1_config_width(ADC_WIDTH_BIT_12);- Fri Aug 09, 2019 4:55 pm
- Forum: ESP32 Arduino
- Topic: Is it possible to use the RTC to track how long the chip was sleeping
- Replies: 4
- Views: 8615
Re: Is it possible to use the RTC to track how long the chip was sleeping
With standard gettimeofday implementation: #include <sys/time.h> RTC_DATA_ATTR timeval sleepTime; void setup() { if(esp_sleep_get_wakeup_cause() == ESP_SLEEP_WAKEUP_TIMER) { timeval timeNow, timeDiff; gettimeofday(&timeNow, NULL); timersub(&timeNow,&sleepTime,&timeDiff); printf("Now: %"PRIu64"ms, Du...
- Tue Aug 06, 2019 4:16 pm
- Forum: ESP32 Arduino
- Topic: External wakeup pin detect issue
- Replies: 12
- Views: 14829
Re: External wakeup pin detect issue
I don't see where wake_up_pin() is called. Check you copied your full sketch here.
Add a couple printouts for wakeup_reason and GPIO_reason, then post the full output here.
Add a couple printouts for wakeup_reason and GPIO_reason, then post the full output here.
- Mon Aug 05, 2019 3:13 pm
- Forum: ESP32 Arduino
- Topic: Error during runtime after wrapping code in classes (Arduino IDE)
- Replies: 2
- Views: 4889
Re: Error during runtime after wrapping code in classes (Arduino IDE)
You're passing around uninitialised pointers.
- Fri Aug 02, 2019 12:26 pm
- Forum: ESP32 Arduino
- Topic: DevKitC on Arduino IDE
- Replies: 1
- Views: 3932
Re: DevKitC on Arduino IDE
Flash and RAM are different things. You might tinker with your partition layout if you're hitting flash limits; you might check free heap to debug RAM issues. Make sure you're clear what your problem is. Looks like it uses a WROVER so select the generic one for that- something like "ESP32-WROVER" pr...
- Thu Aug 01, 2019 2:29 pm
- Forum: ESP32 Arduino
- Topic: OTA with ESP32 as AP
- Replies: 10
- Views: 30925
Re: OTA with ESP32 as AP
Do you mean that it's trying to upload to "http://x.x.x.x/serverIndex/update" (rather than "http://x.x.x.x/update")? You'll have to figure out how to stop it going to the relative uri instead. Try removing the trailing / from your url (ie. go to "http://x.x.x.x/serverIndex" rather than "http://x.x.x...