Hi,Dreamer_mos :
Can you take a picture to show your test enviroment? As you said, boards gets hot, are VCC & GND shorted?
Search found 19 matches
- Fri Nov 15, 2019 8:18 am
- Forum: Report Bugs
- Topic: Warning: ESP32 become hot and dead when connected to power source and type-c
- Replies: 5
- Views: 16116
- Fri Apr 12, 2019 10:46 am
- Forum: 硬件问题讨论
- Topic: ESP32-WROVER-B Strapping 管脚问题
- Replies: 2
- Views: 13136
Re: ESP32-WROVER-B Strapping 管脚问题
这个R9是没有上件的,即GPIO12在模组上没有上拉。是否是外部接了其他设备?
- Mon Mar 18, 2019 2:35 am
- Forum: Hardware
- Topic: Explanation on ESP32 DevitKitV1 circuitry
- Replies: 2
- Views: 5610
Re: Explanation on ESP32 DevitKitV1 circuitry
As you know, we may have caps on EN or GPIO0, so there would have a slow rising edge on such signals. I suggest you can use a oscilloscope to have a test which would help you understand this a lot.
- Mon Mar 18, 2019 2:23 am
- Forum: Hardware
- Topic: Issues flashing brand new ESP32 Module
- Replies: 3
- Views: 6474
Re: Issues flashing brand new ESP32 Module
Will pressing EN and GPIO0 buttons can make the board into downlaod mode?
- Mon Mar 18, 2019 2:20 am
- Forum: Hardware
- Topic: Failed to connect to ESP32 in bootloader mode
- Replies: 1
- Views: 4508
Re: Failed to connect to ESP32 in bootloader mode
I guess there would be some timing issue about EN and GPIO0. Suggest you can use oscilloscope to measure EN and GPIO to make sure GPIO0 keeps low when EN goes high at boot mode.Thanks.
- Mon Mar 18, 2019 2:09 am
- Forum: Hardware
- Topic: ESP32 WROVER (I) Pullup Resistors
- Replies: 5
- Views: 10497
Re: ESP32 WROVER (I) Pullup Resistors
Hey, you can post your schematic here and we can help to have a double check.
- Mon Mar 11, 2019 2:24 am
- Forum: Hardware
- Topic: ESP32 WROVER (I) Pullup Resistors
- Replies: 5
- Views: 10497
Re: ESP32 WROVER (I) Pullup Resistors
1)No need...
2)It is 1.8V on-board configured. No external resistor needed. But take good care of GPIO12 whose power-on status decides the supply voltage for flash. And also, we can configure registers to change the voltage level after power on...
3)Please post your schematic here, thanks...
2)It is 1.8V on-board configured. No external resistor needed. But take good care of GPIO12 whose power-on status decides the supply voltage for flash. And also, we can configure registers to change the voltage level after power on...
3)Please post your schematic here, thanks...
- Mon Mar 11, 2019 2:11 am
- Forum: ESP-IDF
- Topic: SD card driving with SPI
- Replies: 4
- Views: 7516
Re: SD card driving with SPI
Sorry, but what does SCL mean?
- Wed Mar 06, 2019 2:29 am
- Forum: Hardware
- Topic: help with devkit pinout
- Replies: 2
- Views: 4513
Re: help with devkit pinout
You can consult your supplier, but from my own point, you can use the Pin labeled "GND" as GND.
- Tue Mar 05, 2019 2:38 am
- Forum: Hardware
- Topic: ESP32 DevKitC Doesn't Boot Program
- Replies: 2
- Views: 5840
Re: ESP32 DevKitC Doesn't Boot Program
Hey, you can check link https://docs.espressif.com/projects/esp ... vkitc.html to see "Note on C15" to confirm if C15 exists? If yes, please remove it.