Search found 40 matches

by luisonoff
Tue Mar 20, 2018 12:52 pm
Forum: Showcase
Topic: JTAG Debugger that fits most ESP32 Projects
Replies: 12
Views: 8312

Re: JTAG Debugger that fits most ESP32 Projects

Hello,
Looks very interesting.

Do you know about the ESP-Prog??
https://github.com/espressif/esp-iot-so ... uide_en.md

What are the main differences? Or is your programmer the same?
by luisonoff
Fri Mar 09, 2018 7:59 am
Forum: General Discussion
Topic: WROOM32 Board RTC drifting
Replies: 9
Views: 5128

Re: WROOM32 Board RTC drifting

I faced same problem some time ago. This time drift is due to the bad precisión of the internal RTC clock, which is derived from the main clock I believe. I think you have two options here: 1. Use an external RTC crystal connected to ESP32 at the corresponding pins and configure ESP32 to use this RT...
by luisonoff
Mon Feb 26, 2018 12:10 pm
Forum: General Discussion
Topic: Is proximity sensing possible with ESP32?
Replies: 6
Views: 4603

Re: Is proximity sensing possible with ESP32?

Thank you Vader for your detailed answer. I am interested in the first use case you mentioned, sensor changes an interrupt pin in order to wake up the rest of the system. My product is a 6 inch touch screen, and my intention is to have everything powered off (ESP32 deep sleep) until the sensor detec...
by luisonoff
Mon Feb 26, 2018 10:41 am
Forum: General Discussion
Topic: Is proximity sensing possible with ESP32?
Replies: 6
Views: 4603

Re: Is proximity sensing possible with ESP32?

Thank you loboris. I did not know about those sensors, I may use one of them for ambient light sensing. But their power consumption is too high for proximity detection in my case, powering the proximity led takes from 25 to 100 mA, depending on desired range. EDIT: proximity led is ON during very sh...
by luisonoff
Fri Feb 23, 2018 11:33 am
Forum: General Discussion
Topic: Is proximity sensing possible with ESP32?
Replies: 6
Views: 4603

Re: Is proximity sensing possible with ESP32?

Any help from anyone?
by luisonoff
Wed Feb 21, 2018 3:32 pm
Forum: General Discussion
Topic: Is proximity sensing possible with ESP32?
Replies: 6
Views: 4603

Is proximity sensing possible with ESP32?

Hello, I see that the ESP32 has some capacitive touch functions, being demonstrated by the capacitive touch kit from espressif. Is it possible to sense proximity as well? Up to 10-15 cm? If not, would it be possible using the hall effect sensor of the ESP32? If not, anyone has any suggestion on how ...
by luisonoff
Mon Feb 19, 2018 10:06 am
Forum: ESP32 Arduino
Topic: GPIO Pin # for RX2 and TX2 ? (Solved)
Replies: 8
Views: 16200

Re: GPIO Pin # for RX2 and TX2 ?

Hello Jaco, Each dev board is different. I suggest you look for an eschematic for that particular one, or use a multimeter to check where those pins are connected. Later you can use the ESP32 module datasheet to check what pin number it is. BTW, if I am not mistaken, you can route UART2 pins (TX2-RX...
by luisonoff
Fri Feb 09, 2018 12:30 pm
Forum: General Discussion
Topic: JTAG with Wrover
Replies: 9
Views: 4695

Re: JTAG with Wrover

Recently Espressif released a reference design for a programmer board. Check this post: https://esp32.com/viewtopic.php?f=2&t=4310&p=19309 I think it is not sold anywhere yet, but should be available soon I guess. If I am not mistaken, this board could be used for UART programming as well as JTAG de...
by luisonoff
Fri Feb 09, 2018 12:24 pm
Forum: General Discussion
Topic: No wemos boards available (any more ?)
Replies: 6
Views: 3343

Re: No wemos boards available (any more ?)

I just noticed that in TTGO T8 V1.1 the 3D antenna is mounted in the wrong orientation. If you compare it with pico dev kit, antenna has different orientation. The correct one (as stated in its datasheet) is the one from the original pico kit. So I expect wireless performance to be quite worse on th...

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