Search found 8917 matches
- Mon Mar 25, 2024 1:16 pm
- Forum: ESP-IDF
- Topic: ESP32, UART2 uart_write_bytes, no serial output
- Replies: 6
- Views: 354
Re: ESP32, UART2 uart_write_bytes, no serial output
Well, if you have a devboard, the USB-to-serial chip that is n that is likely hardwired to GPIO1 and GPIO3. In other words: if you have serial communication on GPIO16 and 17, the chip won't have any connections to those pins and won't see the serial output.
- Mon Mar 25, 2024 2:41 am
- Forum: ESP-IDF
- Topic: Why is it not good practice to call esp_wifi_connect() after esp_wifi_disconnect()?
- Replies: 11
- Views: 87769
Re: Why is it not good practice to call esp_wifi_connect() after esp_wifi_disconnect()?
Because esp_wifi_disconnect() doesn't disconnect WiFi and then return; rather it tells the WiFi stack to initiate a disconnect. The WiFi stack will then in the background go through all things needed to disconnect gracefully (e.g. inform the AP that the connection is broken) and will finally return ...
- Mon Mar 25, 2024 2:00 am
- Forum: ESP32 Arduino
- Topic: [ESP32 Dev Kit] ADC pin readings always HIGH with external battery connected
- Replies: 2
- Views: 190
Re: [ESP32 Dev Kit] ADC pin readings always HIGH with external battery connected
The reference voltage for the internal ADC is not 3.3V, it's about 1.1V, with an internal attenuator that can scale the input voltage down to that range if needed. You're probably better off changing your voltage divider to divide the battery voltage to something around 0.5V and using 0DB as attenua...
- Mon Mar 25, 2024 1:55 am
- Forum: ESP-IDF
- Topic: ESP32, UART2 uart_write_bytes, no serial output
- Replies: 6
- Views: 354
Re: ESP32, UART2 uart_write_bytes, no serial output
Just to check: you also re-wired your USB-to-serial thing to connect to the new GPIOs?
- Mon Mar 25, 2024 1:52 am
- Forum: ESP-IDF
- Topic: i2s_pdm example - accessing raw pdm data
- Replies: 2
- Views: 254
Re: i2s_pdm example - accessing raw pdm data
Note that you may be able to work around this by configuring the I2S peripheral in normal (I2S) mode with the correct parameters for the PDM serial format; you should be able to receive the raw samples that way (but you won't have access to the decoded samples as the decoder isn't used.)
- Mon Mar 25, 2024 1:47 am
- Forum: General Discussion
- Topic: External battery charging when connected to USB-C power
- Replies: 4
- Views: 366
Re: External battery charging when connected to USB-C power
You need to be a bit more specific. What hardware are you using exactly, how have you connected it, what battery do you have connected? Just 2 normal rechargeable battery in a battery holder connected to 3v3 and ground PINs ... You're not really helping. What's a 'normal' rechargable battery in thi...
- Mon Mar 25, 2024 12:38 am
- Forum: General Discussion
- Topic: USB-C to USB-C not working, USB-C to USB-A working, have pulldowns
- Replies: 3
- Views: 506
Re: USB-C to USB-C not working, USB-C to USB-A working, have pulldowns
Don't worry too much about it. You're only working with USB1.1, which will still work OK if you route it over two parallel pieces of wet string; your layout will work perfectly fine.
- Sun Mar 24, 2024 2:26 am
- Forum: Hardware
- Topic: ESP32-S3-PICO-1 Issues
- Replies: 5
- Views: 334
Re: ESP32-S3-PICO-1 Issues
No worries, shit happens, glad you found the issue!
- Sun Mar 24, 2024 2:24 am
- Forum: General Discussion
- Topic: External battery charging when connected to USB-C power
- Replies: 4
- Views: 366
Re: External battery charging when connected to USB-C power
You need to be a bit more specific. What hardware are you using exactly, how have you connected it, what battery do you have connected?
- Sat Mar 23, 2024 3:15 am
- Forum: Hardware
- Topic: ESP32-S3-PICO-1 Issues
- Replies: 5
- Views: 334
Re: ESP32-S3-PICO-1 Issues
Do you have access to the U0TxD pin? If so, do you see serial chatter on that when you apply power to the board? Also, can you post the schematics?