Search found 102 matches

by Franco
Sat Aug 19, 2023 9:02 am
Forum: General Discussion
Topic: Is it possible to use ESP32_ILI9341 to do zoom in and out?
Replies: 2
Views: 1349

Re: Is it possible to use ESP32_ILI9341 to do zoom in and out?

The pinch/zoom feature does not depend on the display controller itself, but on the touch sensor applied on the surface of the display and its controller, if any. Pinch/zoom feature requires a multi-touch capacitive sensor, the type of display module you describe, seem to come with a resistive touch...
by Franco
Fri Aug 04, 2023 2:37 am
Forum: General Discussion
Topic: Can ESP32 use multi-boot functionality by selecting operating system like Windows?
Replies: 3
Views: 901

Re: Can ESP32 use multi-boot functionality by selecting operating system like Windows?

Franco wrote:
Thu Aug 03, 2023 12:07 pm
Greetings from Franco,
There are ESP32 modules with memory size up to 16MB, it is a lot of space even considering the flash partiyii for OTA. I hope I have well understood your question.
Partition
by Franco
Thu Aug 03, 2023 12:07 pm
Forum: General Discussion
Topic: Can ESP32 use multi-boot functionality by selecting operating system like Windows?
Replies: 3
Views: 901

Re: Can ESP32 use multi-boot functionality by selecting operating system like Windows?

Greetings from Franco,
There are ESP32 modules with memory size up to 16MB, it is a lot of space even considering the flash partiyii for OTA. I hope I have well understood your question.
by Franco
Tue Jul 18, 2023 10:16 am
Forum: General Discussion
Topic: Seeed XIAO ESP32C3 only runs programm when connected to PC
Replies: 9
Views: 3421

Re: Seeed XIAO ESP32C3 only runs programm when connected to PC

Could it be related to the LDO or other power management circuitry hasn't output discharge feature? Just trying to guess.
by Franco
Tue Jul 11, 2023 10:19 am
Forum: General Discussion
Topic: Expand analog inputs
Replies: 3
Views: 1628

Re: Expand analog inputs

Are you designing a giant trackpad or a keyboard type of application? If keyboard, you can look at using multiple chips like this one
https://www.azoteq.com/product/iqs7222b/
It can handle 18 mutual capacitance inputs.
by Franco
Sat Apr 15, 2023 10:20 am
Forum: General Discussion
Topic: To Matter --- OR not to Matter??
Replies: 5
Views: 2387

Re: To Matter --- OR not to Matter??

Hi Keith, To my knowledge, Matter is license free, but the products must be Matter Certified to use the Matter logo. This is the same for Bluetooth, Zigbee and even Wi-Fi if the Yin-Yang Wi-Fi logo is used. Matter Certification can be much simplified by using the ESP-ZeroCode for Matter modules or E...
by Franco
Tue Apr 04, 2023 9:25 pm
Forum: General Discussion
Topic: esp32 not recognize by win 11, how to fix
Replies: 3
Views: 9384

Re: esp32 not recognize by win 11, how to fix

Kindly provide (a lot) more details about what you are trying to achieve.
by Franco
Wed Mar 22, 2023 3:22 pm
Forum: General Discussion
Topic: 6x ESP32 each with Servo
Replies: 1
Views: 827

Re: 6x ESP32 each with Servo

You could use this LED light example and tutorial, based on Rainmaker, which will give you the firmware, the phone app and the cloud services in a very easy implementation. However, I am not familiar with how servos are controlled, if it's ON/OFF then thy job is done, otherwise it will require you t...
by Franco
Thu Mar 16, 2023 1:07 pm
Forum: General Discussion
Topic: ESP32S3 as SDIO slave at 1.8V
Replies: 2
Views: 1045

Re: ESP32S3 as SDIO slave at 1.8V

Due to the number of lines, an integrated circuit is a better solution, you can search for SDIO voltage translator and will get several results
MOSFET are more suitable for I2C.
by Franco
Thu Mar 16, 2023 11:15 am
Forum: General Discussion
Topic: ESP32S3 as SDIO slave at 1.8V
Replies: 2
Views: 1045

Re: ESP32S3 as SDIO slave at 1.8V

According to the ESP32 datasheet, the minimum IO voltage is 2.2V, so my opinion is that to use 1.8V SDIO, you may want to add a bidirectional level shifter that can be made with a couple of N-channel MOSFETs.