Search found 19 matches
- Sat Dec 07, 2019 11:20 am
- Forum: ESP-IDF
- Topic: PWM Generating at expanded GPIO
- Replies: 3
- Views: 5639
Re: PWM Generating at expanded GPIO
The best way is use an expander that has a built in led driver Thanks for your reply! Do you have any suggestion? I found this one http://www.ti.com/lit/an/snva287a/snva287a.pdf. but I think it is overkill (16 IOs). I am looking for at max 4 IOs only single one of them should have PWM ability.
- Sat Dec 07, 2019 11:09 am
- Forum: ESP-IDF
- Topic: PWM Generating at expanded GPIO
- Replies: 3
- Views: 5639
- Fri Dec 06, 2019 1:06 pm
- Forum: ESP-IDF
- Topic: PWM Generating at expanded GPIO
- Replies: 3
- Views: 5639
PWM Generating at expanded GPIO
Hi, I have I2C GPIO expander. I used to generate PWM using ledc_channel_config , ledc_set_duty and ledc_update_duty at one of the original GPIOs of the ESP32. Is it possible to use those function to generate PWM at GPIO in the expander? If not, what s the best way to do this manually? I tried to sta...
- Sat Jun 22, 2019 11:15 am
- Forum: ESP-ADF
- Topic: Controlling volume
- Replies: 0
- Views: 3238
Controlling volume
Hi,
Is there a way to control the sound volume while playing mp3 file from SD card using ESP-ADF?
P.S. I am using hte original ESP32 Wrover module not a board like ESP32-LyraT.
Thanks!
Is there a way to control the sound volume while playing mp3 file from SD card using ESP-ADF?
P.S. I am using hte original ESP32 Wrover module not a board like ESP32-LyraT.
Thanks!
- Thu May 23, 2019 11:00 pm
- Forum: Hardware
- Topic: CPU at 240 MHz
- Replies: 1
- Views: 3358
CPU at 240 MHz
Hi,
Are there any drawbacks for setting CPU frequency to 240 MHz other than the power consumption? For example, heating?
Thanks!
Are there any drawbacks for setting CPU frequency to 240 MHz other than the power consumption? For example, heating?
Thanks!
- Fri May 03, 2019 11:58 am
- Forum: ESP-IDF
- Topic: Formatting SD card
- Replies: 4
- Views: 11981
Re: Formatting SD card
/** * @brief Configuration arguments for esp_vfs_fat_sdmmc_mount and esp_vfs_fat_spiflash_mount functions */ typedef struct { /** * If FAT partition can not be mounted, and this parameter is true, * create partition table and format the filesystem. */ bool format_if_mount_failed; int max_files; ///...
- Tue Apr 30, 2019 10:22 am
- Forum: ESP-IDF
- Topic: Formatting SD card
- Replies: 4
- Views: 11981
Formatting SD card
Hi,
Is it possible to format an SD card as FAT32 at runtime using ESP-IDF ?
Thanks!
Is it possible to format an SD card as FAT32 at runtime using ESP-IDF ?
Thanks!
- Thu Apr 04, 2019 3:13 am
- Forum: ESP-IDF
- Topic: Flashing encrypted firmware for the first time after pregenerated key burned
- Replies: 2
- Views: 5004
Re: Flashing encrypted firmware for the first time after pregenerated key burned
Thank you very much! Your reply is very helpful
- Wed Apr 03, 2019 6:39 pm
- Forum: ESP-IDF
- Topic: Flashing encrypted firmware for the first time after pregenerated key burned
- Replies: 2
- Views: 5004
Flashing encrypted firmware for the first time after pregenerated key burned
Hi, I am using pregenerated key without secure boot. I managed to do everything correctly as it was explained in the tutorial. Now, I want to create a script to flash the whole firmware(including bootloader and everything). I managed to do so except small problem: After burning the pregenerated key ...
- Wed Feb 06, 2019 3:04 pm
- Forum: Hardware
- Topic: Developer kit with more than 4MB flash size
- Replies: 0
- Views: 2765
Developer kit with more than 4MB flash size
Hi,
Is their a developer kit with more than 4MB flash?
Thanks!
Is their a developer kit with more than 4MB flash?
Thanks!