Search found 19 matches

by ESP_Stone
Thu Feb 28, 2019 2:05 am
Forum: Hardware
Topic: IO0 Internal Pullup Disabled?
Replies: 12
Views: 3881

Re: IO0 Internal Pullup Disabled?

Sorry, add the picture.
by ESP_Stone
Thu Feb 28, 2019 2:02 am
Forum: Hardware
Topic: IO0 Internal Pullup Disabled?
Replies: 12
Views: 3881

Re: IO0 Internal Pullup Disabled?

I suggest you add one 1uF cap close to ENABLE. Like below showed:
by ESP_Stone
Wed Feb 27, 2019 9:52 am
Forum: Hardware
Topic: IO0 Internal Pullup Disabled?
Replies: 12
Views: 3881

Re: IO0 Internal Pullup Disabled?

Will you guys please post your schematic here? Thanks.
by ESP_Stone
Fri Dec 07, 2018 1:09 pm
Forum: Hardware
Topic: ESP-WROOM-32 dev kit module
Replies: 3
Views: 1390

Re: ESP-WROOM-32 dev kit module

Please check if there any caps on GPIO0, if does, remove these caps and redo the test. I think the system goes into the wrong mode(probably download mode).
by ESP_Stone
Fri Dec 07, 2018 1:06 pm
Forum: Hardware
Topic: PICO D4 ORCAD Project and ESP32_CORE_BOARD_V2.DSN File
Replies: 3
Views: 1384

Re: PICO D4 ORCAD Project and ESP32_CORE_BOARD_V2.DSN File

Got it, please refer to "https://www.espressif.com/zh-hans/suppo ... %5B%5D=127"
Recommend to refer to ESP32-DevKitc-V4.
by ESP_Stone
Thu Dec 06, 2018 2:38 am
Forum: Hardware
Topic: ESP-WROOM-32 dev kit module
Replies: 3
Views: 1390

Re: ESP-WROOM-32 dev kit module

Do not keep EN float. We suggest to add RC(10K,0.1uF) circuit on EN pin as we do on our development board. You can refer to ESP32-DevKitC design(https://www.espressif.com/zh-hans/suppo ... %5B%5D=127). Thanks.
by ESP_Stone
Wed Dec 05, 2018 6:13 am
Forum: 硬件问题讨论
Topic: ESP32模组芯片
Replies: 1
Views: 2079

Re: ESP32模组芯片

SENSOR_VP、SENSOR_CAPP、SENSOR_CAPN、SENSOR_VN只能作为输入管脚来用;并联的270nF电容可以去掉。
by ESP_Stone
Tue Nov 27, 2018 2:05 am
Forum: Hardware
Topic: ESP32 PCB Antenna Design
Replies: 10
Views: 6750

Re: ESP32 PCB Antenna Design

Sorry, we didn't have any KiCAD libraries. Add dxf file of Antenna Type-B, and hope this would be helpful for you.
Thanks.

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